v0.77.0-dev20260813

Note

If you are installing from a release, please refer to the README, INSTALLATION instructions, and any other documentation packaged with the release, not on the main branch. There may be differences between the latest main and the previous release.

The changelog will now follow, showing the changes from last release.

This release was generated by the CI workflow https://github.com/tenstorrent/tt-metal/actions/runs/31654600509

LLK (low-level kernels)

• deepseek_moe_gate: sanitize scratch so GATE stays bit-exact PR 52949
• Add tests for hadamard and deepseek_moe_gate kernels PR 52827
• sfpu edge case testing phase 2 PR 52416
• Implement dev tool for easier regression check PR 52850
• refactor(llk-perf): group perf helpers under helpers/perf/ package PR 52706

Metalium (tt-metal core)

• tests: fix FP32 SFPU binary broadcast unpack path PR 52758
• lock/unlock support for DFB PR 47975
• Add tests for hadamard and deepseek_moe_gate kernels PR 52827
• Demote per-device "Fabric initialized on Device" log to debug level PR 51849
• Demote per-device Watcher attach/detach logs to debug severity PR 52122
• docs: fix Doxygen argument tables to match compute API function signatures PR 52833
• Automated UMD Bump 11.08.2026 PR 52815
• Automated UMD Bump 12.08.2026 PR 52926
• Add support for per core allocator on socket buffers PR 52551
• DFB tests modernization PR 52965
• Surface Area Reduction profiler headers PR 52766

TT-NN

• Fix ttnn.split padded-shape leak and non-aligned TILE fast-path PR 51768
• Softmax: Fixed block_size (4/8) in attention-optimized interleaved softmax to maximize dest usage PR 51145
• #52572: Fix conv2d PACK format state before tilize PR 52906
• Fix sort compute kernel API misuses causing silent wrong data PR 52271
• Make the MMRS L1 MM-output hand-off opt-in PR 52863
• Drop unreachable reshard assertion from legacy DRAM block-sharded reject test PR 52869
• Ring joint SDPA and the LTX-2.3 distilled AV pipeline PR 52730
• Decouple the socket page size from the tensor page size PR 52457
• Preserve ND provenance in permute fallback PR 46594
• Bug fix: honor rank>4 untilize_with_unpadding output_tensor_end PR 46939
• Add support for per core allocator on socket buffers PR 52551
• Surface Area Reduction profiler headers PR 52766

tt-train

• Surface Area Reduction profiler headers PR 52766

Models

• generator: fix batched prefill's slot vs prefill-order index spaces PR 52808
• Bump up l1_small_size for failing tests PR 52934
• LTX: capture the encode trace last, keep the encoder measured PR 52968
• ds_prefill(k3_mla_gate) - route K3 output gate through high_bw_all_gather PR 52975
• Qwen3.6-27B: Added bucketing fix and TP=8 support PR 51556
• Ring joint SDPA and the LTX-2.3 distilled AV pipeline PR 52730
• Decouple the socket page size from the tensor page size PR 52457
• #52838: Migrate Stable Diffusion 3.5 Large to the tiered Models CI pipelines PR 52892

Infrastructure & CI

• Disambiguate in-place wheel artifact name by Python version PR 52971
• Qwen3.6-27B: Added bucketing fix and TP=8 support PR 51556
• Vm/trigger prefill worker build on dispatch PR 52463
• Make setup multihost action PR 52907
• Add explicit CODEOWNERS for the LLK perf infrastructure PR 52821
• Widen MiniMax-M3 prefill perf gate margin to 15% PR 52937
• Fix unpack and install for multihost envs PR 52945
• Bug fix: honor rank>4 untilize_with_unpadding output_tensor_end PR 46939
• #52838: Migrate Stable Diffusion 3.5 Large to the tiered Models CI pipelines PR 52892
• Disable per-op hang detection for fabric stability tests PR 52368
• Run test owner escalation weekly instead of daily PR 52967
• Remove DeepSeek prefill tests from T3K e2e pipeline PR 53000

Tooling

• Add concise Missing Links summary to validation analysis. PR 52345

Other

• split_model_traced: use the traced split_size, and compare every chunk PR 52792
• Ring joint SDPA and the LTX-2.3 distilled AV pipeline PR 52730