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<li class="toctree-l2"><a class="reference internal" href="blog/2023_08_26_vhdl_configurations.html">Improved Support for VHDL Configurations and OSVVM</a></li>
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<article role="main" id="furo-main-content">
<section id="release-notes">
<span id="id1"></span><h1>Release notes<a class="headerlink" href="#release-notes" title="Link to this heading">¶</a></h1>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>For installation instructions read <a class="reference internal" href="installing.html#installing"><span class="std std-ref">this</span></a>.</p>
</div>
<section id="next">
<h2><a class="reference external" href="https://github.com/vunit/vunit/tree/master/">Next</a><a class="headerlink" href="#next" title="Link to this heading">¶</a></h2>
<p>No significant changes.</p>
<p><a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev9...master">Commits since last release</a></p>
</section>
<section id="dev9-pre-release-2026-03-09-latest">
<span id="release-5-0-0-dev9"></span><span id="release-latest"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev9/">5.0.0.dev9</a> - PRE-RELEASE - 2026-03-09 (latest)<a class="headerlink" href="#dev9-pre-release-2026-03-09-latest" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev9/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev8...v5.0.0.dev9">Commits since previous release</a></p>
<section id="breaking-changes">
<h3>Breaking Changes<a class="headerlink" href="#breaking-changes" title="Link to this heading">¶</a></h3>
<ul>
<li><p>JSON-for-VHDL is no longer shipped with VUnit. Support is now provided through a separate VUnit package. Install it with:</p>
<p><code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span> <span class="pre">vunit-json-for-vhdl</span></code></p>
<p>Calls to the <code class="docutils literal notranslate"><span class="pre">add_json4vhdl()</span></code> method must be replaced with <code class="docutils literal notranslate"><span class="pre">add_package("vunit-json-for-vhdl")</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1171/">#1171</a>)</p>
</li>
</ul>
</section>
<section id="deprecations">
<h3>Deprecations<a class="headerlink" href="#deprecations" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Dropped support for Python 3.8 and 3.9 which have reached their end of life, see <a class="reference external" href="https://devguide.python.org/versions">https://devguide.python.org/versions</a>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1163/">#1163</a>)</p></li>
</ul>
</section>
<section id="features">
<h3>Features<a class="headerlink" href="#features" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Added support for GHDL with LLVM-JIT backend. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1105/">#1105</a>)</p></li>
<li><p>Added support for VHDL-2019 in Questa. Related issues #1135 and #1169. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1135/">#1135</a>)</p></li>
<li><p>Added support for new Questa <code class="docutils literal notranslate"><span class="pre">-ini</span></code> option. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1156/">#1156</a>)</p></li>
<li><p>Added initial support for external package addition. This is in preparation for supporting third-party additions to
VUnit in a controlled way. Some packages currently shipped alongside VUnit will also be moved to this new system, for
example the JSON-for-VHDL package. By separating the packages from the core of VUnit, we make it easier for users to
create, maintain, and share their own packages independent of the VUnit core. Package management is based on the Python
ecosystem, i.e they can be hosted on PyPi and installed by using pip. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1166/">#1166</a>)</p></li>
<li><p>Improved support for non UTF-8 encoded outputs from simulators. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1167/">#1167</a>)</p></li>
<li><p>Added seed as an optional input to <code class="docutils literal notranslate"><span class="pre">pre_config</span></code> hooks. The seed is identical to the base seed provided to the simulation. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1176/">#1176</a>)</p></li>
<li><p>Enabled VHDL-2019 for GHDL >= 6.0.0.</p>
<p>Note that VUnit log location support based on call_path is deactivated as this is yet to be supported by GHDL. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1177/">#1177</a>)</p>
</li>
</ul>
</section>
</section>
<section id="dev8-pre-release-2026-02-11">
<span id="release-5-0-0-dev8"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev8/">5.0.0.dev8</a> - PRE-RELEASE - 2026-02-11<a class="headerlink" href="#dev8-pre-release-2026-02-11" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev8/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev7...v5.0.0.dev8">Commits since previous release</a></p>
<section id="id2">
<h3>Features<a class="headerlink" href="#id2" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>[NVC] Added code coverage support. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/984/">#984</a>)</p></li>
</ul>
</section>
<section id="miscellaneous">
<h3>Miscellaneous<a class="headerlink" href="#miscellaneous" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Updated contexts to include missing packages. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1094/">#1094</a>)</p></li>
<li><p>Added warning when attempting to set NVC <cite>–exit-severity</cite> via <cite>nvc.sim_flags</cite> (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1132/">#1132</a>)</p></li>
<li><p>Improved error messaging if the NVC and GHDL environment variables are used for other purposes than naming the
executable. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1149/">#1149</a>)</p></li>
<li><p>Restrict setup tools to pre-82, as the deprecated pkg_resources is still used.</p>
<p>This is a short-term workaround. A properly updated setup will be released later. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1158/">#1158</a>)</p>
</li>
</ul>
</section>
</section>
<section id="dev7-pre-release-2025-11-20">
<span id="release-5-0-0-dev7"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev7/">5.0.0.dev7</a> - PRE-RELEASE - 2025-11-20<a class="headerlink" href="#dev7-pre-release-2025-11-20" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev7/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev6...v5.0.0.dev7">Commits since previous release</a></p>
<section id="bug-fixes">
<h3>Bug Fixes<a class="headerlink" href="#bug-fixes" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Added support for adding external Riviera-PRO libraries by library file rather than library directory.
This is needed when the name of the library directory differs from that of the library file.</p>
<p>Included all libraries in the <code class="docutils literal notranslate"><span class="pre">vsim</span></code> call using the <code class="docutils literal notranslate"><span class="pre">-L</span></code> option. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1073/">#1073</a>)</p>
</li>
</ul>
</section>
</section>
<section id="dev6-pre-release-2025-05-11">
<span id="release-5-0-0-dev6"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev6/">5.0.0.dev6</a> - PRE-RELEASE - 2025-05-11<a class="headerlink" href="#dev6-pre-release-2025-05-11" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev6/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev5...v5.0.0.dev6">Commits since previous release</a></p>
<section id="id3">
<h3>Bug Fixes<a class="headerlink" href="#id3" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Updated Visualizer support to also work with Questa 2024.2. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1096/">#1096</a>)</p></li>
</ul>
</section>
<section id="id4">
<h3>Features<a class="headerlink" href="#id4" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Added support for running testbenches depending on a set of user-provided source files.</p>
<p>The intended use case is to feed VUnit with files that have been changed since some point in time.
The changes are typically provided by the version control system. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1095/">#1095</a>)</p>
</li>
<li><p>Added support for repeating seeds from previous test run by setting the <code class="docutils literal notranslate"><span class="pre">--seed</span></code> option to <code class="docutils literal notranslate"><span class="pre">repeat</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1113/">#1113</a>)</p></li>
<li><p>Added support for test prioritization with two goals in mind:</p>
<ol class="arabic simple">
<li><p>Prioritize likely failures - Tests more likely to fail are executed earlier to provide faster feedback.</p></li>
<li><p>Load balancing - When tests are executed in parallel using the -p option, VUnit will try to keep the threads balanced to minimize total execution time.</p></li>
</ol>
<p>Added the <code class="docutils literal notranslate"><span class="pre">--changed</span></code> option that limits tests to those that depend on changes made after the last test run. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1114/">#1114</a>)</p>
</li>
</ul>
</section>
<section id="id5">
<h3>Miscellaneous<a class="headerlink" href="#id5" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Updated handling of <code class="docutils literal notranslate"><span class="pre">disable_ieee_warnings</span></code> for NVC 1.16 and later. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1098/">#1098</a>)</p></li>
</ul>
</section>
</section>
<section id="dev5-pre-release-2025-01-13">
<span id="release-5-0-0-dev5"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev5/">5.0.0.dev5</a> - PRE-RELEASE - 2025-01-13<a class="headerlink" href="#dev5-pre-release-2025-01-13" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev5/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev4...v5.0.0.dev5">Commits since previous release</a></p>
<section id="id6">
<h3>Bug Fixes<a class="headerlink" href="#id6" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added workarounds for Visualizer restart and stability issues. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/899/">#899</a>)</p></li>
<li><p>Fixed array_axis_vcs example. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1082/">#1082</a>)</p></li>
</ul>
</section>
<section id="id7">
<h3>Deprecations<a class="headerlink" href="#id7" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Dropped support for Python 3.7 which reached end-of-life mid 2023. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1091/">#1091</a>)</p></li>
</ul>
</section>
<section id="id8">
<h3>Features<a class="headerlink" href="#id8" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Provided a unique base seed to every simulation. From that base seed any number of unique seed can derived
to initialize the random number generators in the testbench. Unique seeds increase the test coverage for
randomized tests over time as they are executed repeatedly by the user and the CI. The seed can be overrideen
from the command line with the –seed option in order to reproduce failing tests. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1089/">#1089</a>)</p></li>
</ul>
</section>
<section id="id9">
<h3>Miscellaneous<a class="headerlink" href="#id9" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added shebang to setup.py. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1078/">#1078</a>)</p></li>
<li><p>Updated the setup GHDL action used in the GitHub CI. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1092/">#1092</a>)</p></li>
</ul>
</section>
</section>
<section id="dev4-pre-release-2024-12-11">
<span id="release-5-0-0-dev4"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev4/">5.0.0.dev4</a> - PRE-RELEASE - 2024-12-11<a class="headerlink" href="#dev4-pre-release-2024-12-11" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev4/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev3...v5.0.0.dev4">Commits since previous release</a></p>
<section id="id10">
<h3>Features<a class="headerlink" href="#id10" title="Link to this heading">¶</a></h3>
<ul>
<li><p>[Questa/Modelsim] Added support for 3-step flow and the Visualizer debugger.</p>
<p>The 3-step flow is enabled by setting the simulation option <code class="docutils literal notranslate"><span class="pre">modelsim.three_step_flow</span></code> to <code class="docutils literal notranslate"><span class="pre">True</span></code>. Extra
flags to the <code class="docutils literal notranslate"><span class="pre">vopt</span></code> step can be provided with the simulation flags <code class="docutils literal notranslate"><span class="pre">modelsim.vopt_flags</span></code> and
<code class="docutils literal notranslate"><span class="pre">modelsim.vopt_flags.gui</span></code> in normal and GUI mode, respectively.</p>
<p>The Visualizer debugger is enabled from the command line using the <code class="docutils literal notranslate"><span class="pre">--debugger=visualizer</span></code> option (in
addition to the <code class="docutils literal notranslate"><span class="pre">--gui</span></code> option for GUI mode). The 3-step flow must be enabled for this feature while
the default <code class="docutils literal notranslate"><span class="pre">original</span></code> debugger works with or without the 3-step flow.</p>
<p>Note: There is a bug in Visualizer preventing the normal <code class="docutils literal notranslate"><span class="pre">restart</span></code> command from being used. Please use the
<code class="docutils literal notranslate"><span class="pre">vunit_restart</span></code> command instead. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/899/">#899</a>)</p>
</li>
<li><p>[GHDL/NVC] Arbitrary waveform viewers are now supported by passing the <code class="docutils literal notranslate"><span class="pre">--viewer</span></code>
command line argument. As a consequence, <code class="docutils literal notranslate"><span class="pre">ghdl.gtkwave_script.gui</span></code> and
<code class="docutils literal notranslate"><span class="pre">nvc.gtkwave_script.gui</span></code> are deprecated in favour of <code class="docutils literal notranslate"><span class="pre">ghdl.viewer_script.gui</span></code>
and <code class="docutils literal notranslate"><span class="pre">nvc.viewer_script.gui</span></code>, respectively. The <code class="docutils literal notranslate"><span class="pre">--gtkwave-args</span></code> and
<code class="docutils literal notranslate"><span class="pre">--gtkwave-fmt</span></code> command line arguments are deprecated in favour of <code class="docutils literal notranslate"><span class="pre">--viewer-args</span></code>
and <code class="docutils literal notranslate"><span class="pre">--viewer-fmt</span></code>, respectively. <code class="docutils literal notranslate"><span class="pre">ghdl.viewer.gui</span></code> and <code class="docutils literal notranslate"><span class="pre">nvc.viewer.gui</span></code> can
be used to set the preferred viewer from the run-file. If no viewer is explicitly
requested, <code class="docutils literal notranslate"><span class="pre">gtkwave</span></code> or <code class="docutils literal notranslate"><span class="pre">surfer</span></code> is used, in that order. This also means that
VUnit now uses <code class="docutils literal notranslate"><span class="pre">surfer</span></code> if <code class="docutils literal notranslate"><span class="pre">gtkwave</span></code> is not installed.</p>
<p>[NVC] It is possible to get VCD waveform files by passing <code class="docutils literal notranslate"><span class="pre">--viewer-fmt=vcd</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1002/">#1002</a>)</p>
</li>
<li><p>Added timeout parameter to the <cite>wait_until_idle</cite> procedure in the synchronization verification component interface.
A timeout will result in a failure. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1054/">#1054</a>)</p></li>
</ul>
</section>
</section>
<section id="dev3-pre-release-2024-08-15">
<span id="release-5-0-0-dev3"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev3/">5.0.0.dev3</a> - PRE-RELEASE - 2024-08-15<a class="headerlink" href="#dev3-pre-release-2024-08-15" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev3/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev2...v5.0.0.dev3">Commits since previous release</a></p>
<section id="id11">
<h3>Features<a class="headerlink" href="#id11" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added option to configure the logging simulation time format (unit and number of decimals). (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1044/">#1044</a>)</p></li>
<li><p>Added support for setting <code class="docutils literal notranslate"><span class="pre">run_all_in_same_sim</span></code> and <code class="docutils literal notranslate"><span class="pre">fail_on_warning</span> <span class="pre">attributes</span></code> from Python. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1053/">#1053</a>)</p></li>
</ul>
</section>
</section>
<section id="dev2-pre-release-2024-08-07">
<span id="release-5-0-0-dev2"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev2/">5.0.0.dev2</a> - PRE-RELEASE - 2024-08-07<a class="headerlink" href="#dev2-pre-release-2024-08-07" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev2/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev16...v5.0.0.dev2">Commits since previous release</a></p>
<section id="id12">
<h3>Breaking Changes<a class="headerlink" href="#id12" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Changed default values for unconnected tkeep and tstrb inputs for AXI stream VCs to match the standard:</p>
<ul class="simple">
<li><p>tkeep changed from all zeros to all ones</p></li>
<li><p>tstrb changed from all zeros to value of tkeep</p></li>
</ul>
<p>May affect existing code if these values are verified by the testbench despite being unconnected. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1049/">#1049</a>)</p>
</li>
</ul>
</section>
<section id="id13">
<h3>Bug Fixes<a class="headerlink" href="#id13" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Changed AXI stream slave to only verify tdata if both of tkeep and tstrb are set. Removed potential race condition an AXI stream master. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1049/">#1049</a>)</p></li>
</ul>
</section>
</section>
<section id="dev16-pre-release-2026-10-29">
<span id="release-5-0-0-dev16"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev16/">5.0.0.dev16</a> - PRE-RELEASE - 2026-10-29<a class="headerlink" href="#dev16-pre-release-2026-10-29" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev16/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev15...v5.0.0.dev16">Commits since previous release</a></p>
<section id="id14">
<h3>Breaking Changes<a class="headerlink" href="#id14" title="Link to this heading">¶</a></h3>
<ul>
<li><p>OSVVM is now a VUnit package rather than a submodule to the VUnit repository. It is installed with:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pip</span> <span class="n">install</span> <span class="n">vunit</span><span class="o">-</span><span class="n">osvvm</span>
</pre></div>
</div>
<p>Existing calls to <code class="docutils literal notranslate"><span class="pre">add_osvvm()</span></code> shall be replaced with <code class="docutils literal notranslate"><span class="pre">add_package("vunit-osvvm")</span></code>.</p>
<p><code class="docutils literal notranslate"><span class="pre">vunit-osvvm</span></code> is maintained in a separate <a class="reference external" href="https://github.com/VUnit/vunit-osvvm">repository</a>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1246/">#1246</a>)</p>
</li>
</ul>
</section>
<section id="id15">
<h3>Bug Fixes<a class="headerlink" href="#id15" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Fixed <code class="docutils literal notranslate"><span class="pre">new_dict</span></code> crashing after <code class="docutils literal notranslate"><span class="pre">deallocate</span></code> of a dict that had grown beyond one bucket, caused by recycled pointers being longer than requested. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1229/">#1229</a>)</p></li>
<li><p>The simulator hooks registered by the packages of a VUnit object are no longer lost when another VUnit object is created. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1234/">#1234</a>)</p></li>
</ul>
</section>
<section id="id16">
<h3>Deprecations<a class="headerlink" href="#id16" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>VUnit no longer officially supports Python 3.10, as support across its surrounding ecosystem is beginning to decline
following the end of support by the Python organization. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1247/">#1247</a>)</p></li>
</ul>
</section>
<section id="documentation">
<h3>Documentation<a class="headerlink" href="#documentation" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>The website now publishes, for AI agents, all documentation and the declarations of all VHDL packages as plain text in
<code class="docutils literal notranslate"><span class="pre">llms-full.txt</span></code>, and a machine-readable reference of the VHDL and Python APIs (<code class="docutils literal notranslate"><span class="pre">api/vunit_lib.json</span></code> and
<code class="docutils literal notranslate"><span class="pre">api/python.json</span></code>). <code class="docutils literal notranslate"><span class="pre">AGENTS.md</span></code> and <code class="docutils literal notranslate"><span class="pre">context7.json</span></code> were added to the repository. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1222/">#1222</a>)</p></li>
</ul>
</section>
<section id="id17">
<h3>Features<a class="headerlink" href="#id17" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added <code class="docutils literal notranslate"><span class="pre">get_key</span></code> and <code class="docutils literal notranslate"><span class="pre">get_value_type</span></code> to <code class="docutils literal notranslate"><span class="pre">dict_pkg</span></code> for enumerating a <code class="docutils literal notranslate"><span class="pre">dict_t</span></code> and reading each value by type. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1229/">#1229</a>)</p></li>
<li><p>Package manifests can now use a boolean <code class="docutils literal notranslate"><span class="pre">requires</span></code> expression for VUnit, VHDL, simulator, and simulator-version
constraints, and a per-source <code class="docutils literal notranslate"><span class="pre">when</span></code> expression to conditionally include sources. Expressions support comparisons,
<code class="docutils literal notranslate"><span class="pre">and</span></code>/<code class="docutils literal notranslate"><span class="pre">or</span></code>, and parentheses. The separate <code class="docutils literal notranslate"><span class="pre">requires-vunit</span></code> and <code class="docutils literal notranslate"><span class="pre">requires-vhdl</span></code> fields remain supported but are
deprecated. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1232/">#1232</a>)</p></li>
<li><p>Simulator interfaces can be added by adding a package, see <a class="reference internal" href="vunit_packages.html#package-simulator"><span class="std std-ref">Simulator Packages</span></a>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1250/">#1250</a>)</p></li>
</ul>
</section>
</section>
<section id="dev15-pre-release-2026-10-16">
<span id="release-5-0-0-dev15"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev15/">5.0.0.dev15</a> - PRE-RELEASE - 2026-10-16<a class="headerlink" href="#dev15-pre-release-2026-10-16" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev15/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev14...v5.0.0.dev15">Commits since previous release</a></p>
<section id="id18">
<h3>Breaking Changes<a class="headerlink" href="#id18" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>TBD (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1232/">#1232</a>)</p></li>
</ul>
</section>
<section id="id19">
<h3>Bug Fixes<a class="headerlink" href="#id19" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Fixed <code class="docutils literal notranslate"><span class="pre">new_dict</span></code> crashing after <code class="docutils literal notranslate"><span class="pre">deallocate</span></code> of a dict that had grown beyond one bucket, caused by recycled pointers being longer than requested. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1229/">#1229</a>)</p></li>
<li><p>The simulator hooks registered by the packages of a VUnit object are no longer lost when another VUnit object is created. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1234/">#1234</a>)</p></li>
</ul>
</section>
<section id="id20">
<h3>Documentation<a class="headerlink" href="#id20" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>The website now publishes, for AI agents, all documentation and the declarations of all VHDL packages as plain text in
<code class="docutils literal notranslate"><span class="pre">llms-full.txt</span></code>, and a machine-readable reference of the VHDL and Python APIs (<code class="docutils literal notranslate"><span class="pre">api/vunit_lib.json</span></code> and
<code class="docutils literal notranslate"><span class="pre">api/python.json</span></code>). <code class="docutils literal notranslate"><span class="pre">AGENTS.md</span></code> and <code class="docutils literal notranslate"><span class="pre">context7.json</span></code> were added to the repository. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1222/">#1222</a>)</p></li>
</ul>
</section>
<section id="id21">
<h3>Features<a class="headerlink" href="#id21" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added <code class="docutils literal notranslate"><span class="pre">get_key</span></code> and <code class="docutils literal notranslate"><span class="pre">get_value_type</span></code> to <code class="docutils literal notranslate"><span class="pre">dict_pkg</span></code> for enumerating a <code class="docutils literal notranslate"><span class="pre">dict_t</span></code> and reading each value by type. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1229/">#1229</a>)</p></li>
<li><p>Package manifests can now use a boolean <code class="docutils literal notranslate"><span class="pre">requires</span></code> expression for VUnit, VHDL, simulator, and simulator-version
constraints, and a per-source <code class="docutils literal notranslate"><span class="pre">when</span></code> expression to conditionally include sources. Expressions support comparisons,
<code class="docutils literal notranslate"><span class="pre">and</span></code>/<code class="docutils literal notranslate"><span class="pre">or</span></code>, and parentheses. The separate <code class="docutils literal notranslate"><span class="pre">requires-vunit</span></code> and <code class="docutils literal notranslate"><span class="pre">requires-vhdl</span></code> fields remain supported but are
deprecated. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1232/">#1232</a>)</p></li>
</ul>
</section>
</section>
<section id="dev14-pre-release-2026-10-03">
<span id="release-5-0-0-dev14"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev14/">5.0.0.dev14</a> - PRE-RELEASE - 2026-10-03<a class="headerlink" href="#dev14-pre-release-2026-10-03" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev14/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev13...v5.0.0.dev14">Commits since previous release</a></p>
<section id="id22">
<h3>Features<a class="headerlink" href="#id22" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>VUnit packages can now assign source entries to multiple libraries and define package-wide as well as per-source
compile options in <code class="docutils literal notranslate"><span class="pre">vunit_pkg.toml</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1228/">#1228</a>)</p></li>
</ul>
</section>
</section>
<section id="dev13-pre-release-2026-09-26">
<span id="release-5-0-0-dev13"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev13/">5.0.0.dev13</a> - PRE-RELEASE - 2026-09-26<a class="headerlink" href="#dev13-pre-release-2026-09-26" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev13/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev12...v5.0.0.dev13">Commits since previous release</a></p>
<section id="id23">
<h3>Bug Fixes<a class="headerlink" href="#id23" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Fixed broken GHDL container image build. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1226/">#1226</a>)</p></li>
</ul>
</section>
</section>
<section id="dev12-pre-release-2026-09-24">
<span id="release-5-0-0-dev12"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev12/">5.0.0.dev12</a> - PRE-RELEASE - 2026-09-24<a class="headerlink" href="#dev12-pre-release-2026-09-24" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev12/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev11...v5.0.0.dev12">Commits since previous release</a></p>
<section id="id24">
<h3>Features<a class="headerlink" href="#id24" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added accessor functions to <code class="docutils literal notranslate"><span class="pre">check_pkg</span></code> for inspecting a <code class="docutils literal notranslate"><span class="pre">check_result_t</span></code>:
<code class="docutils literal notranslate"><span class="pre">is_pass</span></code>, <code class="docutils literal notranslate"><span class="pre">get_checker</span></code>, <code class="docutils literal notranslate"><span class="pre">get_msg</span></code>, <code class="docutils literal notranslate"><span class="pre">get_log_level</span></code>, <code class="docutils literal notranslate"><span class="pre">get_line_num</span></code> and
<code class="docutils literal notranslate"><span class="pre">get_file_name</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1221/">#1221</a>)</p></li>
<li><p>Added <code class="docutils literal notranslate"><span class="pre">run_script_path(runner_cfg)</span></code> to <code class="docutils literal notranslate"><span class="pre">run_pkg</span></code>, returning the path of the
VUnit run script that started the simulation. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1221/">#1221</a>)</p></li>
<li><p>A VUnit package can provide a setup function with the <code class="docutils literal notranslate"><span class="pre">setup</span></code> key of its <code class="docutils literal notranslate"><span class="pre">vunit_pkg.toml</span></code> file.
The function is called with a <a class="reference internal" href="py/vunit.html#vunit.package_context.PackageContext" title="vunit.package_context.PackageContext"><code class="xref py py-class docutils literal notranslate"><span class="pre">PackageContext</span></code></a> once the
sources of the package have been added and allows a package to do work that cannot be expressed with
static sources, such as building a native library or adding generated sources.
Running the function takes both the package declaring it and the <code class="docutils literal notranslate"><span class="pre">add_package</span></code> call allowing it with
<code class="docutils literal notranslate"><span class="pre">allow_setup=True</span></code>, such that a project adding a package of nothing but VHDL never runs code of the
package and the code it does allow to run is visible in the run script.
The context tells where the selected simulator was found with <code class="docutils literal notranslate"><span class="pre">simulator_prefix</span></code> and how the
installation there was built with <code class="docutils literal notranslate"><span class="pre">simulator_backend</span></code>, the GHDL code generator for GHDL and <code class="docutils literal notranslate"><span class="pre">None</span></code>
for a simulator with no such notion. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1221/">#1221</a>)</p></li>
<li><p>A VUnit package can register simulator hooks with <code class="docutils literal notranslate"><span class="pre">register_simulator_hooks</span></code> of the context given to
its setup function. A hook provides extra elaboration flags, extra simulation flags, extra flags for the
simulator process VUnit starts or the environment of the simulation for one simulator, which is what a
package whose HDL code depends on something built outside the simulator needs to have that found and
loaded.
A simulator interface gives a hook the prefix it was found in with its new <code class="docutils literal notranslate"><span class="pre">prefix</span></code> property. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1221/">#1221</a>)</p></li>
</ul>
</section>
</section>
<section id="dev11-pre-release-2026-08-13">
<span id="release-5-0-0-dev11"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev11/">5.0.0.dev11</a> - PRE-RELEASE - 2026-08-13<a class="headerlink" href="#dev11-pre-release-2026-08-13" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev11/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev10...v5.0.0.dev11">Commits since previous release</a></p>
<section id="id25">
<h3>Breaking Changes<a class="headerlink" href="#id25" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Improved user control over what values are driven on the AXI stream bus when <code class="docutils literal notranslate"><span class="pre">tvalid</span></code> is low and the bus is inactive.
The inactive value configuration is controlled by a new parameter <code class="docutils literal notranslate"><span class="pre">inactive_policy</span></code> to the <code class="docutils literal notranslate"><span class="pre">new_axi_stream_master</span></code>
function and it can also be updated dynamically with the <code class="docutils literal notranslate"><span class="pre">set_inactive_axi_stream_policy</span></code> command.
This is a breaking change from the generic-based configuration used before. However, if will only affect the behavior
of the AXI stream master VC if the generics are set to non-default values.</p>
<p><code class="docutils literal notranslate"><span class="pre">set_stall_config</span></code> has also been added for dynamic control of the stall configuration. This is not a breaking
change. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1195/">#1195</a>)</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">vunit.vivado</span></code> has been removed. Vivado support is now provided through a separate package.</p>
<p>Install it with:</p>
<div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>pip<span class="w"> </span>install<span class="w"> </span>vunit-vivado
</pre></div>
</div>
<p>Then import <code class="docutils literal notranslate"><span class="pre">vunit_vivado.vivado</span></code> instead of <code class="docutils literal notranslate"><span class="pre">vunit.vivado</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1201/">#1201</a>)</p>
</li>
</ul>
</section>
<section id="id26">
<h3>Features<a class="headerlink" href="#id26" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Improved the strategy for locating the INI file in Questa / ModelSim installations that do not use the standard file
names <code class="docutils literal notranslate"><span class="pre">questa.ini</span></code> or <code class="docutils literal notranslate"><span class="pre">modelsim.ini</span></code>. The update handles known naming deviations and also supports other INI file
names, provided their contents appear to be valid simulator configuration files. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1198/">#1198</a>)</p></li>
</ul>
</section>
<section id="id27">
<h3>Miscellaneous<a class="headerlink" href="#id27" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Bumped required setuptools version to >=77. The higher version is required to support the license and license files
formats in pyproject.toml. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1196/">#1196</a>)</p></li>
</ul>
</section>
</section>
<section id="dev10-pre-release-2026-03-12">
<span id="release-5-0-0-dev10"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev10/">5.0.0.dev10</a> - PRE-RELEASE - 2026-03-12<a class="headerlink" href="#dev10-pre-release-2026-03-12" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev10/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v5.0.0.dev1...v5.0.0.dev10">Commits since previous release</a></p>
<section id="id28">
<h3>Bug Fixes<a class="headerlink" href="#id28" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Fixed missing generated seed input to pre_config hook. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1178/">#1178</a>)</p></li>
</ul>
</section>
<section id="id29">
<h3>Features<a class="headerlink" href="#id29" title="Link to this heading">¶</a></h3>
<ul>
<li><p>Added support for extended identifiers.</p>
<p>A known exception is that extended identifiers within a port or generic clause that uses parenthesis must
have the same number of opening and closing parenthesis. For example, a generic named <code class="docutils literal notranslate"><span class="pre">\foo(bar)\</span></code> is
accepted but <code class="docutils literal notranslate"><span class="pre">\foo(bar\</span></code> is not. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1120/">#1120</a>)</p>
</li>
</ul>
</section>
</section>
<section id="dev1-pre-release-2024-07-19">
<span id="release-5-0-0-dev1"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v5.0.0.dev1/">5.0.0.dev1</a> - PRE-RELEASE - 2024-07-19<a class="headerlink" href="#dev1-pre-release-2024-07-19" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/5.0.0.dev1/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v4.7.0...v5.0.0.dev1">Commits since previous release</a></p>
<section id="id30">
<h3>Breaking Changes<a class="headerlink" href="#id30" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>HDL builtins are not compiled by default.
To preserve the functionality, the run script is now required to explicitly use methods
<a class="reference internal" href="py/vunit.html#vunit.ui.VUnit.add_vhdl_builtins" title="vunit.ui.VUnit.add_vhdl_builtins"><code class="xref py py-meth docutils literal notranslate"><span class="pre">add_vhdl_builtins()</span></code></a> or
<a class="reference internal" href="py/vunit.html#vunit.ui.VUnit.add_verilog_builtins" title="vunit.ui.VUnit.add_verilog_builtins"><code class="xref py py-meth docutils literal notranslate"><span class="pre">add_verilog_builtins()</span></code></a>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/559/">#559</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/764/">#764</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/777/">#777</a>)</p></li>
<li><p>[VHDL] Remove <code class="docutils literal notranslate"><span class="pre">array_pkg</span></code>; use <code class="docutils literal notranslate"><span class="pre">integer_array_t</span></code> instead. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/600/">#600</a>)</p></li>
<li><p>Continue after compilation failure if <code class="docutils literal notranslate"><span class="pre">--keep-compiling</span></code> is <code class="docutils literal notranslate"><span class="pre">True</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/742/">#742</a>)</p></li>
<li><p>[GHDL] Remove <code class="docutils literal notranslate"><span class="pre">ghdl.flags</span></code>; use <code class="docutils literal notranslate"><span class="pre">ghdl.a_flags</span></code> instead. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/932/">#932</a>)</p></li>
<li><p>[VHDL] Remove deprecated <code class="docutils literal notranslate"><span class="pre">check</span></code>, <code class="docutils literal notranslate"><span class="pre">log</span></code> and <code class="docutils literal notranslate"><span class="pre">run</span></code> packages. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/933/">#933</a>)</p></li>
<li><p>Remove 1 ms gate lock timeout. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/983/">#983</a>)</p></li>
</ul>
</section>
<section id="id31">
<h3>Bug Fixes<a class="headerlink" href="#id31" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>[VCs] Take <code class="docutils literal notranslate"><span class="pre">tkeep</span></code> and <code class="docutils literal notranslate"><span class="pre">tstrb</span></code> into account when checking for invalid <code class="docutils literal notranslate"><span class="pre">tdata</span></code> in <code class="docutils literal notranslate"><span class="pre">axi_stream_protocol_checker</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/798/">#798</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/799/">#799</a>)</p></li>
<li><p>[Questa] Added workaround for bit-ordering bug in Questa (<a class="reference external" href="https://github.com/VUnit/vunit/issues/889/">#889</a>)</p></li>
<li><p>[GHDL] Create missing directories when generating coverage report. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/924/">#924</a>)</p></li>
<li><p>[VHDL] Fixed memory leak in check/log functions. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/954/">#954</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/956/">#956</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/1001/">#1001</a>)</p></li>
<li><p>[OSVVM] Compile correct MemoryPkg files for simulators supporting generic packages. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/965/">#965</a>)</p></li>
<li><p>Fixed bug for <code class="docutils literal notranslate"><span class="pre">check_relation</span></code> when using custom checker. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/971/">#971</a>)</p></li>
<li><p>[VC] Fixed failing 4kB boundary check in AXI when using unaligned addresses. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1018/">#1018</a>)</p></li>
</ul>
</section>
<section id="id32">
<h3>Deprecations<a class="headerlink" href="#id32" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Drop Python v3.6.</p></li>
</ul>
</section>
<section id="id33">
<h3>Documentation<a class="headerlink" href="#id33" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Rename ‘VHDL Libraries’ to <a class="reference internal" href="hdl_libraries.html#hdl-libraries"><span class="std std-ref">HDL Libraries</span></a>. Add section <a class="reference internal" href="user_guide.html#user-guide"><span class="std std-ref">Guides</span></a>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/764/">#764</a>)</p></li>
</ul>
</section>
<section id="id34">
<h3>Features<a class="headerlink" href="#id34" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Added support for simulating top-level VHDL configurations. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/179/">#179</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/951/">#951</a>)</p></li>
<li><p>Add common log interface for third-party logging framework integration. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/776/">#776</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/947/">#947</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/949/">#949</a>)</p></li>
<li><p>[VCs] Drive <code class="docutils literal notranslate"><span class="pre">axi_lite_master</span></code>, <code class="docutils literal notranslate"><span class="pre">axi_read_slave</span></code> and <code class="docutils literal notranslate"><span class="pre">axi_write_slave</span></code> bus with <code class="docutils literal notranslate"><span class="pre">'X'</span></code> when valid is low. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/802/">#802</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/994/">#994</a>)</p></li>
<li><p>[VHDL] Add <code class="docutils literal notranslate"><span class="pre">check_equal</span></code> for <code class="docutils literal notranslate"><span class="pre">ieee.fixed_pkg</span></code> types. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/909/">#909</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/989/">#989</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/998/">#998</a>)</p></li>
<li><p>[NVC] New simulation and compile option <code class="docutils literal notranslate"><span class="pre">nvc.global_flags</span></code> can be used
to pass arbitrary flags to <code class="docutils literal notranslate"><span class="pre">nvc</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/946/">#946</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/948/">#948</a>)</p></li>
<li><p>[Parsing] Allow multiply and divide within component instantiations. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/966/">#966</a>)</p></li>
<li><p>[GHDL] Support selecting FST format for waveform files. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/967/">#967</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/1004/">#1004</a>)</p></li>
<li><p>Add <code class="docutils literal notranslate"><span class="pre">py.typed</span></code> file to indicate the existence of Python typing hints. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/991/">#991</a>)</p></li>
<li><p>[GHDL] Add support for mcode JIT in backend detection. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1005/">#1005</a>)</p></li>
<li><p>[GHDL] Added coverage support for mcode backend. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1007/">#1007</a>)</p></li>
<li><p>Update time reporting from test results. Also add timestamps when starting tests. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1025/">#1025</a>)</p></li>
<li><p>[Active-HDL] Added vunit_help, vunit_load, vunit_run, vunit_compile, vunit_restart, and vunit_user_init TCL commands to Active-HDL. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1032/">#1032</a>)</p></li>
<li><p>[Riviera-PRO, ModelSim/Questa, Active-HDL] Defined the TCL variable <code class="docutils literal notranslate"><span class="pre">vunit_tb_name</span></code> as the name of the top level design unit during the evaluation of the <code class="docutils literal notranslate"><span class="pre"><simulator>.init_file</span></code> scripts for Active-HDL, Riviera-PRO and ModelSim/Qusta.
[Active-HDL] Defined the TCL variable <code class="docutils literal notranslate"><span class="pre">vunit_tb_path</span></code> during the evaluation of the <code class="docutils literal notranslate"><span class="pre">activehdl.init_file.gui</span></code> script. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1033/">#1033</a>)</p></li>
<li><p>[NVC] VUnit now sets the <code class="docutils literal notranslate"><span class="pre">NVC_CONCURRENT_JOBS</span></code> environment variable to
the value of the <code class="docutils literal notranslate"><span class="pre">--num-threads</span></code> argument which allows <code class="docutils literal notranslate"><span class="pre">nvc</span></code> to
scale its worker thread count based on the number of concurrently
running simulations. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1036/">#1036</a>)</p></li>
<li><p>It is possible to use all logical CPUs by passing <code class="docutils literal notranslate"><span class="pre">-p0</span></code> (<code class="docutils literal notranslate"><span class="pre">--num-threads=0</span></code>). See <code class="docutils literal notranslate"><span class="pre">multiprocessing.cpu_count</span></code> for how the number is determined. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1039/">#1039</a>)</p></li>
</ul>
</section>
<section id="id35">
<h3>Miscellaneous<a class="headerlink" href="#id35" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>[NVC] Multi-word command line arguments are now quoted in the log. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/940/">#940</a>)</p></li>
<li><p>Removed unused code. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/972/">#972</a>)</p></li>
<li><p>[Questa/Modelsim] Remove compile warnings. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/981/">#981</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/993/">#993</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/996/">#996</a>)</p></li>
<li><p>[VHDL] Minimize imports in packages and VCs in an effort to reduce simulator startup time. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/992/">#992</a>)</p></li>
<li><p>Improved error message when entity name in architecture statement is misspelled such that there is no matching entity. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/1026/">#1026</a>)</p></li>
<li><p>[OSVVM] Bump to 2023.04.</p></li>
</ul>
</section>
</section>
<section id="release-4-7-0">
<span id="id36"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v4.7.0/">4.7.0</a> - 2023-04-23<a class="headerlink" href="#release-4-7-0" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/4.7.0/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v4.6.0...v4.7.0">Commits since previous release</a></p>
<section id="id37">
<h3>Bug Fixes<a class="headerlink" href="#id37" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>[JSON-for-VHDL] Fix invalid XML characters in the example. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/356/">#356</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/845/">#845</a>)</p></li>
<li><p>Fix AXI Stream slave back to back transfers. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/573/">#573</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/858/">#858</a>)</p></li>
<li><p>[Riviera-PRO] Fix for RUNTIME_0232 and RUNTIME_022 messages. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/621/">#621</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/825/">#825</a>)</p></li>
<li><p>Fix delta cycle race conditions. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/642/">#642</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/813/">#813</a>)</p></li>
<li><p>Skip non-generic OSVVM packages when the simulator supports generics. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/768/">#768</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/769/">#769</a>)</p></li>
<li><p>Fix location preprocessor casing bug. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/773/">#773</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/774/">#774</a>)</p></li>
<li><p>Support detecting and failing on ambiguous direct entity instantiations. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/781/">#781</a>)</p></li>
<li><p>[Vivado] Add flag <code class="docutils literal notranslate"><span class="pre">fail_on_non_hdl_files</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/782/">#782</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/786/">#786</a>)</p></li>
<li><p>Fix parsing of port type starting with signal. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/792/">#792</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/826/">#826</a>)</p></li>
<li><p>Fix false pass. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/794/">#794</a>)</p></li>
<li><p>Fix axi_lite_master wait behaviour if idle. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/797/">#797</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/856/">#856</a>)</p></li>
<li><p>Handle PermissionError while listing available simulators. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/819/">#819</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/820/">#820</a>)</p></li>
<li><p>[ModelSim/Questa] Workaround for compilation bug. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/838/">#838</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/840/">#840</a>)</p></li>
<li><p>Support generics with explicit constant declaration. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/852/">#852</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/854/">#854</a>)</p></li>
<li><p>Detect GHDL backend with newer GCC|LLVM. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/898/">#898</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/901/">#901</a>)</p></li>
</ul>
</section>
<section id="id38">
<h3>Deprecations<a class="headerlink" href="#id38" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Add <code class="docutils literal notranslate"><span class="pre">compile_builtins</span></code> deprecation warning.
Use <code class="docutils literal notranslate"><span class="pre">add_vhdl_builtins</span></code> and/or <code class="docutils literal notranslate"><span class="pre">add_verilog_builtins</span></code> instead. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/559/">#559</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/757/">#757</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/777/">#777</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/778/">#778</a>)</p></li>
<li><p>[OSVVM] Bump to 2022.04. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/754/">#754</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/780/">#780</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/790/">#790</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/827/">#827</a>)</p></li>
<li><p>Python 3.6 was EOL in Dec 2021; use Python 3.7 as the minimum tested version.</p></li>
<li><p>[JSON-for-VHDL] Bump to <code class="docutils literal notranslate"><span class="pre">95e848b8</span></code>.</p></li>
</ul>
</section>
<section id="id39">
<h3>Documentation<a class="headerlink" href="#id39" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Add timing diagrams to the Check Library user guide. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/576/">#576</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/823/">#823</a>)</p></li>
<li><p>Add <code class="docutils literal notranslate"><span class="pre">add_vhdl_builtins</span></code> and <code class="docutils literal notranslate"><span class="pre">add_verilog_builtins</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/757/">#757</a>)</p></li>
<li><p>Add section Overview, including a diagram. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/779/">#779</a>)</p></li>
<li><p>Improve documentation for <code class="docutils literal notranslate"><span class="pre">pre_config</span></code> and <code class="docutils literal notranslate"><span class="pre">post_check</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/801/">#801</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/849/">#849</a>)</p></li>
<li><p>Improve help of CLI option <code class="docutils literal notranslate"><span class="pre">--clean</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/810/">#810</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/855/">#855</a>)</p></li>
<li><p>Added LibraryList. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/816/">#816</a>)</p></li>
<li><p>Fix typos. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/821/">#821</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/832/">#832</a>)</p></li>
<li><p>Clarify that <code class="docutils literal notranslate"><span class="pre">VUNIT_SIMULATOR</span></code> is set to <code class="docutils literal notranslate"><span class="pre">modelsim</span></code> when using Questa. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/834/">#834</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/850/">#850</a>)</p></li>
<li><p>Improve documentation of <code class="docutils literal notranslate"><span class="pre">check_enabled</span></code>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/874/">#874</a>)</p></li>
<li><p>Added Identity package user guide. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/887/">#887</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/888/">#888</a>)</p></li>
<li><p>Change theme to <a class="reference external" href="https://github.com/pradyunsg/furo">furo</a>. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/912/">#912</a>)</p></li>
<li><p>Add blog post on FPGA World 2022 in Stockholm.</p></li>
<li><p>Add blog post on VUnit’s relation to other frameworks.</p></li>
</ul>
</section>
<section id="id40">
<h3>Features<a class="headerlink" href="#id40" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Add NVC simulator support. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/44/">#44</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/904/">#904</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/914/">#914</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/926/">#926</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/927/">#927</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/930/">#930</a>)</p></li>
<li><p>Skip addition of built-in dependencies (OSVVM and/or JSON-for-VHDL) if the library is added previously. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/767/">#767</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/771/">#771</a>)</p></li>
<li><p>Add method to get list of libraries from VUnit object. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/815/">#815</a>)</p></li>
<li><p>Make <code class="docutils literal notranslate"><span class="pre">dict_t</span></code> type generic. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/830/">#830</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/835/">#835</a>)</p></li>
<li><p>Add support for byte enable to Avalon slave. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/872/">#872</a>)</p></li>
<li><p>[Active-HDL] Enable VHDL-2019. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/875/">#875</a>)</p></li>
<li><p>Add high-level event synchronization mechanism. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/883/">#883</a>)</p></li>
<li><p>Add Identity package. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/887/">#887</a>)</p></li>
<li><p>Add phases for better runtime control. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/900/">#900</a>)</p></li>
<li><p>[VHDL-2019] Support interface lists with trailing comma. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/903/">#903</a>)</p></li>
<li><p>[VHDL-2019] Add method <code class="docutils literal notranslate"><span class="pre">supports_vhdl_call_paths</span></code> to the simulator interface. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/908/">#908</a>)</p></li>
<li><p>Introduce new class <code class="docutils literal notranslate"><span class="pre">LibraryList</span></code> and add method to get list of libraries from VUnit object.</p></li>
</ul>
</section>
<section id="id41">
<h3>Miscellaneous<a class="headerlink" href="#id41" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Replace <code class="docutils literal notranslate"><span class="pre">inspect.getargspec</span></code> method, removed in Python 3.11. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/868/">#868</a>)</p></li>
<li><p>Test support on Python 3.11. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/870/">#870</a>)</p></li>
<li><p>[CI] Add workflow_dispatch. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/911/">#911</a>)</p></li>
<li><p>[CI] Add NVC jobs. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/917/">#917</a>)</p></li>
<li><p>Improved release notes by adding sections using <a class="reference external" href="https://github.com/twisted/towncrier">towncrier</a> to aid in finding
relevant information about releases and updated contributing guide with instructions. (<a class="reference external" href="https://github.com/VUnit/vunit/issues/918/">#918</a>, <a class="reference external" href="https://github.com/VUnit/vunit/issues/921/">#921</a>)</p></li>
<li><p>[CI] Forks push the docs to branch gh-pages (so it’s published at <code class="docutils literal notranslate"><span class="pre"><USERNAME>.github.io/vunit</span></code>). (<a class="reference external" href="https://github.com/VUnit/vunit/issues/920/">#920</a>)</p></li>
<li><p>Add utilities to create HTML from code snippets and VUnit logs.</p></li>
</ul>
</section>
</section>
<section id="release-4-6-0">
<span id="id42"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v4.6.0/">4.6.0</a> - 2021-10-25<a class="headerlink" href="#release-4-6-0" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/4.6.0/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v4.5.0...v4.6.0">Commits since previous release</a></p>
<ul class="simple">
<li><p>Add Python 3.9 and 3.10 to classifiers.</p></li>
<li><p>Use MAJOR and MINOR constants to check supported Python version. <a class="reference external" href="https://github.com/VUnit/vunit/issues/724/">#724</a></p></li>
<li><p>Fix pylint issues.</p></li>
<li><p>Use f-strings for string formatting. <a class="reference external" href="https://github.com/VUnit/vunit/issues/743/">#743</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/747/">#747</a></p></li>
<li><p>Specify encoding when using ‘open’. <a class="reference external" href="https://github.com/VUnit/vunit/issues/748/">#748</a></p></li>
<li><p>Set black line-length to 120 characters. <a class="reference external" href="https://github.com/VUnit/vunit/issues/736/">#736</a></p></li>
<li><p>Use Path from pathlib, instead of <cite>open()</cite>.</p></li>
<li><p>Add support for log location based on VHDL-2019 call paths. <a class="reference external" href="https://github.com/VUnit/vunit/issues/729/">#729</a></p></li>
<li><p>GHDL supports VHDL package generics. <a class="reference external" href="https://github.com/VUnit/vunit/issues/753/">#753</a></p></li>
<li><p>Bump OSVVM to 2021.09.</p></li>
<li><p>[Tox] Use pytest for collecting coverage, add py310.</p></li>
<li><p>[Tests] mark array_axis_vcs and verilog_ams examples as xfail. <a class="reference external" href="https://github.com/VUnit/vunit/issues/751/">#751</a></p></li>
<li><p>[Logging/log_deprecated_pkg] fix compilation issues with Cadence tools. <a class="reference external" href="https://github.com/VUnit/vunit/issues/731/">#731</a></p></li>
<li><p>[Parsing/tokenizer] partial revert of 5141f7c <a class="reference external" href="https://github.com/VUnit/vunit/issues/735/">#735</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/745/">#745</a></p></li>
<li><p>[UI] make glob search recursive by default.</p></li>
<li><p>[VCs] bugfix AXI stream slave nonblocking check. <a class="reference external" href="https://github.com/VUnit/vunit/issues/720/">#720</a></p></li>
<li><p>[Examples] add shebang to run scripts. <a class="reference external" href="https://github.com/VUnit/vunit/issues/738/">#738</a></p></li>
<li><p>[Example/vhdl/user_guide] add VHDL 1993 variant, clean use statements, skip in acceptance tests if VHDL context not supported. <a class="reference external" href="https://github.com/VUnit/vunit/issues/737/">#737</a></p></li>
<li><p>[Examples/vhdl/array_axis_vcs] Fix PSL check for valid fifo in data during write. <a class="reference external" href="https://github.com/VUnit/vunit/issues/750/">#750</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/766/">#766</a></p></li>
<li><p>[Docs] bump sphinx_btd_theme to v1, revert temporary pinning of Sphinx and docutils, remove redundant delete message call from com user guide example, fix ref to Travis CI (deprecated) (GitHub Actions is used now), add section about envvars, document VUNIT_VHDL_STANDARD, use ‘exec’ directive to generate content in examples, update ‘Credits and License’, add refs to Tratex. <a class="reference external" href="https://github.com/VUnit/vunit/issues/730/">#730</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/739/">#739</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/761/">#761</a></p></li>
<li><p>[CI] add emojis/icons, avoid deployments from forks, fix deploy condition event, add job using setup-ghdl-ci, update images from Debian Buster to Debian Bullseye, do not overload image tags.</p></li>
</ul>
</section>
<section id="release-4-5-0">
<span id="id43"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v4.5.0/">4.5.0</a> - 2021-05-21<a class="headerlink" href="#release-4-5-0" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/4.5.0/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v4.4.0...v4.5.0">Commits since previous release</a></p>
<ul class="simple">
<li><p>Update year and update license test to 2021.</p></li>
<li><p>Bump OSVVM. <a class="reference external" href="https://github.com/VUnit/vunit/issues/712/">#712</a></p></li>
<li><p>Support Python 3.9.</p></li>
<li><p>Call <cite>supports_coverage()</cite> rather than returning method object. <a class="reference external" href="https://github.com/VUnit/vunit/issues/638/">#638</a></p></li>
<li><p>Do not use <cite>relpath</cite> when printing output file. <a class="reference external" href="https://github.com/VUnit/vunit/issues/661/">#661</a></p></li>
<li><p>Make <cite>runner.create_output_path</cite> a member of <cite>TestRunner</cite> class and reanme to <cite>_get_output_path</cite>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/682/">#682</a></p></li>
<li><p>Update <cite>check_stable</cite> to handle longer time frames. <a class="reference external" href="https://github.com/VUnit/vunit/issues/636/">#636</a></p></li>
<li><p>Add <cite>check_equal</cite> for <cite>character</cite>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/721/">#721</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/722/">#722</a></p></li>
<li><p>Update <cite>.gitignore</cite>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/641/">#641</a></p></li>
<li><p>Resolve ambiguity between VUnit’s <cite>line_vector</cite> type and the new standard <cite>line_vector</cite> type in VHDL-2019. <a class="reference external" href="https://github.com/VUnit/vunit/issues/664/">#664</a></p></li>
<li><p>[Tests] Use <cite>str</cite> for params to <cite>self.check</cite>, reduce ‘many_keys’ to avoid failure with latest GHDL.</p></li>
<li><p>[Docs] Travis is not used for releases, use <cite>autodoc_default_options</cite> instead of (deprecated) <cite>autodoc_default_flags</cite>, fix duplicated content and index of vunit_cli, add intersphinx mapping to docs.python.org, update ‘Credits’ and ‘License’, use buildthedocs/sphinx.theme, replace <cite>LICENSE.txt</cite> with <cite>LICENSE.rst</cite>, replace <cite>README.rst</cite> with <cite>README.md</cite>, move ‘Requirements’ from ‘About’ to ‘Installing’, add captioned toctrees, use admonitions, move CI out from CLI and update content, add blog post on continuous integration, clarify that GHDL is a rolling project. <a class="reference external" href="https://github.com/VUnit/vunit/issues/694/">#694</a></p></li>
<li><p>[Tools] raise exception if git not available when creating release notes.</p></li>
<li><p>[Example/vhdl/array_axis_vcs] Update, expand procedure <cite>run_test</cite>, add stall functionality. <a class="reference external" href="https://github.com/VUnit/vunit/issues/648/">#648</a></p></li>
<li><p>[UI] Fix not serializable path when exporting JSON. <a class="reference external" href="https://github.com/VUnit/vunit/issues/657/">#657</a></p></li>
<li><p>[Tox] add pyproject.toml, use isolated_build, merge tox.ini into pyproject.yml.</p></li>
<li><p>[Setup] Ensure that the source tree is on the sys path.</p></li>
<li><p>[RivieraPro] Fix coverage merge error. <a class="reference external" href="https://github.com/VUnit/vunit/issues/675/">#675</a></p></li>
<li><p>[RivieraPro] handle empty macro. <a class="reference external" href="https://github.com/VUnit/vunit/issues/681/">#681</a></p></li>
<li><p>[RivieraPro] Update VHDL version option in command line interface to work with version 2020.04 and above. <a class="reference external" href="https://github.com/VUnit/vunit/issues/664/">#664</a></p></li>
<li><p>[VCs] Add null AXI stream master and slave constants.</p></li>
<li><p>[VCs] Fix bug in AXI stream protocol checker rule 4.</p></li>
<li><p>[VCs] Add ability to define the actor on new_axi_slave function. <a class="reference external" href="https://github.com/VUnit/vunit/issues/709/">#709</a></p></li>
<li><p>[VCs] Push avalon master read req msg one cycle earlier. <a class="reference external" href="https://github.com/VUnit/vunit/issues/695/">#695</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/696/">#696</a></p></li>
<li><p>[VCs] Fix broken msg passing in wishbone master. <a class="reference external" href="https://github.com/VUnit/vunit/issues/692/">#692</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/693/">#693</a></p></li>
<li><p>[CI] Update container registry, use ghcr.io.</p></li>
<li><p>[CI] Pin Sphinx and docutils version to work around theme issues.</p></li>
</ul>
</section>
<section id="release-4-4-0">
<span id="id44"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v4.4.0/">4.4.0</a> - 2020-03-26<a class="headerlink" href="#release-4-4-0" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/4.4.0/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v4.3.0...v4.4.0">Commits since previous release</a></p>
<ul class="simple">
<li><p>Update year and update license test to 2020.</p></li>
<li><p>Bump OSVVM to latest version.</p></li>
<li><p>Add possibility to configure random stalls for AXI Stream. <a class="reference external" href="https://github.com/VUnit/vunit/issues/557/">#557</a></p></li>
<li><p>JSON-for-VHDL: use base16 encodings. <a class="reference external" href="https://github.com/VUnit/vunit/issues/595/">#595</a></p></li>
<li><p>First release requiring Python 3.6 or higher. Python 2.7, 3.4 and 3.5 are not supported anymore. <a class="reference external" href="https://github.com/VUnit/vunit/issues/596/">#596</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/601/">#601</a></p></li>
<li><p>Start adding type annotations to the Python sources; add mypy (a static type checker) to the list of linters. <a class="reference external" href="https://github.com/VUnit/vunit/issues/601/">#601</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/626/">#626</a></p></li>
<li><p>Move co-simulation (VHPIDIRECT) sources (implementation and example) to <a class="reference external" href="https://github.com/VUnit/cosim">VUnit/cosim</a>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/606/">#606</a></p></li>
<li><p>ghdl interface: with <code class="docutils literal notranslate"><span class="pre">ghdl_e</span></code>, save runtime args to JSON file. <a class="reference external" href="https://github.com/VUnit/vunit/issues/606/">#606</a></p></li>
<li><p>Add missing mode assertions to <code class="docutils literal notranslate"><span class="pre">-93</span></code> sources of <code class="docutils literal notranslate"><span class="pre">integer_vector_ptr</span></code> and <code class="docutils literal notranslate"><span class="pre">string_ptr</span></code>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/607/">#607</a></p></li>
<li><p>Add method <code class="docutils literal notranslate"><span class="pre">get_simulator_name()</span></code> to public Python API. <a class="reference external" href="https://github.com/VUnit/vunit/issues/610/">#610</a></p></li>
<li><p>Start replacing <code class="docutils literal notranslate"><span class="pre">join</span></code>, <code class="docutils literal notranslate"><span class="pre">dirname</span></code>, etc. with <code class="docutils literal notranslate"><span class="pre">pathlib</span></code>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/612/">#612</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/626/">#626</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/632/">#632</a></p></li>
<li><p>Fix parsing adjacent hyphens in a literal. <a class="reference external" href="https://github.com/VUnit/vunit/issues/616/">#616</a></p></li>
<li><p>Fix <code class="docutils literal notranslate"><span class="pre">ghdl.flags</span></code> error in documentation. <a class="reference external" href="https://github.com/VUnit/vunit/issues/620/">#620</a></p></li>
<li><p>Rename compile option <code class="docutils literal notranslate"><span class="pre">ghdl.flags</span></code> to <code class="docutils literal notranslate"><span class="pre">ghdl.a_flags</span></code>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/624/">#624</a></p></li>
<li><p>Move <code class="docutils literal notranslate"><span class="pre">project.Library</span></code> to separate file.</p></li>
<li><p>Remove Travis CI and AppVeyor, use GitHub Actions only.</p></li>
<li><p>Remove Sphinx extension ABlog; handle posts as regular pages in subdir <code class="docutils literal notranslate"><span class="pre">blog</span></code>.</p></li>
<li><p>Update GHDL to v0.37 in Windows CI jobs.</p></li>
<li><p>Fix regression in GHDL (<code class="docutils literal notranslate"><span class="pre">prefix</span> <span class="pre">of</span> <span class="pre">array</span> <span class="pre">attribute</span> <span class="pre">must</span> <span class="pre">be</span> <span class="pre">an</span> <span class="pre">object</span> <span class="pre">name</span></code>). <a class="reference external" href="https://github.com/VUnit/vunit/issues/631/">#631</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/635/">#635</a></p></li>
<li><p>Add code coverage support for GHDL. <a class="reference external" href="https://github.com/VUnit/vunit/issues/627/">#627</a></p></li>
</ul>
</section>
<section id="release-4-3-0">
<span id="id45"></span><h2><a class="reference external" href="https://github.com/vunit/vunit/tree/v4.3.0/">4.3.0</a> - 2019-11-30<a class="headerlink" href="#release-4-3-0" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://pypi.python.org/pypi/vunit_hdl/4.3.0/">Download from PyPI</a> | <a class="reference external" href="https://github.com/VUnit/vunit/compare/v4.2.0...v4.3.0">Commits since previous release</a></p>
<ul class="simple">
<li><p>Fix broken <code class="docutils literal notranslate"><span class="pre">vhdl_standard</span></code> setting in some situations. <a class="reference external" href="https://github.com/VUnit/vunit/issues/594/">#594</a></p></li>
<li><p>Add ‘external modes’ (VHPIDIRECT) to <code class="docutils literal notranslate"><span class="pre">string_ptr</span></code> and <code class="docutils literal notranslate"><span class="pre">integer_vector_ptr</span></code>; add <code class="docutils literal notranslate"><span class="pre">byte_vector_prt</span></code> too. <a class="reference external" href="https://github.com/VUnit/vunit/issues/507/">#507</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/476/">#476</a></p></li>
<li><p>Add report data to <code class="docutils literal notranslate"><span class="pre">Results</span></code> object/class. <a class="reference external" href="https://github.com/VUnit/vunit/issues/586/">#586</a></p></li>
<li><p>Use a Python formatter: <a class="reference external" href="https://github.com/psf/black">psf/black</a>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/554/">#554</a></p></li>
<li><p>Refactor <code class="docutils literal notranslate"><span class="pre">vunit/ui</span></code>, <code class="docutils literal notranslate"><span class="pre">vunit/sim_if</span></code>, <code class="docutils literal notranslate"><span class="pre">vunit/test</span></code> and <code class="docutils literal notranslate"><span class="pre">tests</span></code>. <a class="reference external" href="https://github.com/VUnit/vunit/issues/572/">#572</a> <a class="reference external" href="https://github.com/VUnit/vunit/issues/582/">#582</a></p></li>
<li><p>Deprecate <code class="docutils literal notranslate"><span class="pre">array_pkg</span></code>. It will be removed in future releases. Use <a class="reference internal" href="data_types/integer_array.html#integer-array-pkg"><span class="std std-ref">integer_array package</span></a> instead. <a class="reference external" href="https://github.com/VUnit/vunit/issues/593/">#593</a></p></li>
<li><p>Python 3.4 reached End-of-life in 2019-03-18 and it is no longer tested. Support is expected to break in future releases.</p></li>
<li><p>Add support for Python 3.8.</p></li>