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Commits on Apr 23, 2026

• [harbor][step-wise] Make Harbor use step-wise training (#1542)

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  CharlieFRuan

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  a90cd1d

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• [chore] Redirect output to infrastructure logs for `VLLMServerActor` (#1563)

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  SumanthRH

  authored
  f0c3e1d

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• [chore] Update `skyrl` and `skyrl-gym` versions after `0.2.0` release (#1562)

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  SumanthRH

  authored
  4161db9

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• [harbor] support trajectory-based agents and OpenHands (#1184) (#1548)

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  arteemg

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  ac036f3

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Commits on Apr 22, 2026

• [train] Support packing for CUDA IPC transfer with new inference codepath (#1557)

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  SumanthRH

  authored
  57591db

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• [bug] Fix failing CPU tests after #1544 (#1555)

  SumanthRH

  authored
  756efc3

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• [bug][tinker] Fix `vLLMRouter` init in `SkyRLTrainBackend` (#1551)

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  SumanthRH

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  20dccc9

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Commits on Apr 21, 2026

• [tinker] Fix optimizer offload in SkyRL train backend after weight sync (#1550)

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  SumanthRH

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  f37b6b6

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• [chore] Move flash attention wheel specification to `uv.sources` (#1546)

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  SumanthRH

  authored
  9b7d246

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• [train] Make the new inference codepath the default (#1544)

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  SumanthRH

  authored
  3a6e6ea

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• [docs][example] VLM Examples (#1531)

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  nithinvc

  authored
  f83573c

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• [trivial][test] Add overlong filtering test to step-wise prefix-aware merging (#1541)

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  CharlieFRuan

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  4a10523

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Commits on Apr 20, 2026

• [harbor] Bump harbor to HEAD, make run_harbor_gen runnable (#1540)

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  CharlieFRuan

  authored
  04f844b

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• [train][step-wise] Add prefix-aware merging for step-wise training (#1538)

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  880f0f7

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• Revert "[train][step-wise] Add prefix-aware merging for step-wise training" (#1537)

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  CharlieFRuan

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  77ee63f

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• [train][step-wise] Add prefix-aware merging for step-wise training (#1532)

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  CharlieFRuan

  authored
  8180541

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• [stepwise] Plumb through step-wise training for fully async (#1536)

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  CharlieFRuan

  authored
  4c7d6d3

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• [CI] Fix timeout failures in E2E CI pipelines (#1533)

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  SumanthRH

  authored
  4d231a7

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• [qoc] Make concatenate_generator_outputs linear instead of O(K^2) (#1535)

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  CharlieFRuan

  and

  claude

  authored
  bb6a730

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Commits on Apr 17, 2026

• [skyrl][tinker] Use VLLMRenderer in SkyRL train backend (#1496)

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  nithinvc

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  ddf8327

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• [train][multimodal][3/3] Add multi-turn VLM generator (#1486)

  nithinvc

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• [fix][train] Prompt-based mini-batching for step-wise training (#1529)

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  CharlieFRuan

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• [bug][train] Fix max_seq_len calculation (#1303)

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  tamoghnokandar

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  gemini-code-assist[bot]

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  25e2d41

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• [qoc] Extract `pad_batch()` into a helper to `training_batch.py` (#1527)

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  CharlieFRuan

  authored
  9991ee3

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• [qoc] Remove unused TrainingInputBatch.metadata["trajectory_ids"] (#1526)

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  CharlieFRuan

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  39148a0

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Commits on Apr 16, 2026

• [dep] Add causal-conv1d and mamba-ssm wheels, add mamba-ssm as extra (#1524)

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  CharlieFRuan

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  ed29594

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• [train] SFT 1/N: Add a native SFT trainer to SkyRL (#1503)

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  SumanthRH

  and

  claude

  authored
  2d735da

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• [CI] Migrate E2E CI to use new inference (#1521)

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  SumanthRH

  authored
  39b4fd1

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• [CI] Fix Megatron LoRA for new inference and migrate Megatron CI to new inference codepath (#1518)

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  SumanthRH

  authored
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Commits on Apr 15, 2026

• [feat][train] Chunked IPC support for new inference (#1512)

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• [CI] Migrate non-Megatron GPU CI to run on new inference codepath (#1476)

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  SumanthRH

  and

  claude

  authored
  2facd80

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Commits on Apr 14, 2026

• [train][multimodal][2/3] Trainer changes to extract multi-modal outputs from GeneratorOutput (#1498)

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  nithinvc

  authored
  02be377

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• [fix][train] Fix port collision for num_engines > 1 in non-PD case (#1511)

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  SumanthRH

  authored
  c2d6d47

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• [fix][CI] Fix cleanup for `test_weight_sync` (#1510)

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  SumanthRH

  authored
  1f8c6f2

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• [fix][train][step-wise] Broadcast step-wise advantage with each step's own response_mask (#1507)

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  CharlieFRuan

  and

  claude

  authored
  76b7187

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