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Darshan version 3.4.2 is now officially available for download here: <a href="https://www.mcs.anl.gov/research/projects/darshan/download/" data-auth="NotApplicable" data-safelink="true" data-linkindex="0" class="ContentPasted0">

https://www.mcs.anl.gov/research/projects/darshan/download/</a>. This point release includes important bug fixes for Darshan's new PnetCDF module:<br>

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<li class="ContentPasted0 ContentPasted1">Fixed segfault when defining scalar variables in PnetCDF module</li><li class="ContentPasted0 ContentPasted1 ContentPasted2">Fixed bug attributing all PnetCDF variable instrumentation to the first variable instrumented</li><li class="ContentPasted0 ContentPasted1 ContentPasted2 ContentPasted3">Fixed memory corruption (and potential segfault) when reading/writing high-dimensional PnetCDF variables using  vara/vars/varm interfaces</li><li class="ContentPasted0 ContentPasted1 ContentPasted2 ContentPasted3 ContentPasted4">

Fixed crashes related to using PnetCDF vard interfaces with input MPI_DATATYPE_NULL datatypes<br>

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<div>Note that these bugs can only be triggered by the PnetCDF module released in Darshan version 3.4.1, which is disabled by default. There should be no impact on Darshan 3.4.1 configurations that did not explicitly enable PnetCDF instrumentation.<br>

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We have also released PyDarshan 3.4.2.0 on PyPI, though this is just to track the 3.4.2 darshan-util library. There are no new modifications to PyDarshan functionality.<br>

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Documentation for Darshan and PyDarshan is available here: <a href="https://www.mcs.anl.gov/research/projects/darshan/documentation/" data-auth="NotApplicable" data-safelink="true" data-linkindex="1" class="ContentPasted0">

https://www.mcs.anl.gov/research/projects/darshan/documentation/</a>.</div>

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Please report any questions, issues, or concerns with this release using this mailing list, or by opening an issue on our GitHub:

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https://github.com/darshan-hpc/darshan</a>.<br class="ContentPasted0">

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Thanks!</div>

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--Darshan team</div>

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