v0.18.5 Patch Release

What's Changed

• Update version.txt after 0.18.4 release by @loadams in #7765
• Various fixes to run on mps by @jeffra in #7767
• Udpate workflow trigger by @tohtana in #7768
• fix: delete using namespace std. by @nathon-lee in #7766
• fix: update Megatron-DeepSpeed tutorial to match current repo structure by @nathon-lee in #7761
• Add timeout to test workflows by @tohtana in #7774
• Remove cron/PR triggers for outdated V100 tests by @loadams in #7777
• [Docs] Fix docs/_pages/config-json.md format by @ooooo-create in #7779
• Update CLA to refer to DCO by @loadams in #7778
• Fix multiprocessing testcase by @k-artem in #7743
• fix: skip compressed allreduce for empty tensors by @T1mn in #7769
• docs: update README.md by @eltociear in #7781
• Fix gradient checkpointing with use_reentrant=True / PyTorch-style backward / ZeRO-3 by @tohtana in #7780
• Fix Ulysses PEFT test by @tohtana in #7784
• Fix Evoformer compilation by @sdvillal in #7760
• fix checkpointing/loading of z0+bf16 by @tohtana in #7786
• Add sequential allgather optimization for ZeRO-3 by @aeeeeeep in #7661
• Fix AutoTP test numerical tolerance with rtol by @tohtana in #7794
• Fix backward for pipeline engine by @tohtana in #7787
• Skip empty parameters in gradient reduction by @tohtana in #7789
• Fix issue with BF16 optimizer selection by @tohtana in #7788
• Fix BF16_Optimizer being used without ZeRO by @tohtana in #7790
• Add full test suite workflow by @tohtana in #7795
• Fix Muon optimizer module path by @tohtana in #7802
• Fix ping-pong buffer index reset and removing redundant stream sync by @undersilence in #7805
• Fix ZeRO stage to choose BF16 optimizer in test by @tohtana in #7803
• Run Evoformer tests sequentially by @tohtana in #7810
• Improve engine's cleanup by @tohtana in #7813
• Ignore evoformer test by @tohtana in #7815
• Fix typos in accelerator setup guide by @nathon-lee in #7818
• Raise clear error on in-place GatheredParameters edits without modifier_rank by @tohtana in #7817
• [Bugfix] Resolve Rank index out of range during BWD when sp_size < world_size in Ulysses by @Flink-ddd in #7809
• Update PyTorch to v2.9 for modal tests by @tohtana in #7816

New Contributors

• @ooooo-create made their first contribution in #7779
• @T1mn made their first contribution in #7769
• @sdvillal made their first contribution in #7760
• @undersilence made their first contribution in #7805

Full Changelog: v0.18.4...v0.18.5