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1 | 1 | # CHANGELOG |
2 | 2 |
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3 | 3 |
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| 4 | +## v0.16.0 (2026-06-12) |
| 5 | + |
| 6 | +### Bug Fixes |
| 7 | + |
| 8 | +- Align GRPO prompt format with SFT training format |
| 9 | + ([#61](https://github.com/OpenAdaptAI/openadapt-ml/pull/61), |
| 10 | + [`04e6e9f`](https://github.com/OpenAdaptAI/openadapt-ml/commit/04e6e9f8321334e3aac6a701a8c68e29e53cb0c6)) |
| 11 | + |
| 12 | +The GRPO rollout prompt was missing the "Thought:" line and action history that the SFT training |
| 13 | + uses. Models fine-tuned via SFT output "Thought: ...\nAction: CLICK(...)" but the GRPO prompt |
| 14 | + didn't prompt for this format, causing verbose free-form output that couldn't be parsed → reward |
| 15 | + 0.0 → zero gradients. |
| 16 | + |
| 17 | +Changes: - Add "Thought:" and "Action:" prompt lines matching SFT format - Add action_history |
| 18 | + parameter for step context - Parser extracts action from "Action: ..." line before regex matching |
| 19 | + - Parser handles JSON format {"action_type": "click", "coordinate": [x,y]} - Debug logging of raw |
| 20 | + VLM output for zero-reward diagnosis |
| 21 | + |
| 22 | +Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
| 23 | + |
| 24 | +- Include image placeholder in chat template for VLM GRPO |
| 25 | + ([#59](https://github.com/OpenAdaptAI/openadapt-ml/pull/59), |
| 26 | + [`6617e02`](https://github.com/OpenAdaptAI/openadapt-ml/commit/6617e026e564c2b7e04cbeb1bb63e8c8b7a348c7)) |
| 27 | + |
| 28 | +Qwen2.5-VL requires <|image_pad|> tokens in the input. These are inserted by apply_chat_template |
| 29 | + only when messages include {"type": "image"} content blocks. |
| 30 | + |
| 31 | +Fixed both agent_fn and _compute_rollout_loss. |
| 32 | + |
| 33 | +Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
| 34 | + |
| 35 | +- Increase max_new_tokens to 2048 and make configurable via GRPOConfig |
| 36 | + ([#62](https://github.com/OpenAdaptAI/openadapt-ml/pull/62), |
| 37 | + [`fecf461`](https://github.com/OpenAdaptAI/openadapt-ml/commit/fecf4619ce9ebe3763b90d3f6007a0a31689afe3)) |
| 38 | + |
| 39 | +* fix: align GRPO prompt format with SFT training format |
| 40 | + |
| 41 | +The GRPO rollout prompt was missing the "Thought:" line and action history that the SFT training |
| 42 | + uses. Models fine-tuned via SFT output "Thought: ...\nAction: CLICK(...)" but the GRPO prompt |
| 43 | + didn't prompt for this format, causing verbose free-form output that couldn't be parsed → reward |
| 44 | + 0.0 → zero gradients. |
| 45 | + |
| 46 | +Changes: - Add "Thought:" and "Action:" prompt lines matching SFT format - Add action_history |
| 47 | + parameter for step context - Parser extracts action from "Action: ..." line before regex matching |
| 48 | + - Parser handles JSON format {"action_type": "click", "coordinate": [x,y]} - Debug logging of raw |
| 49 | + VLM output for zero-reward diagnosis |
| 50 | + |
| 51 | +Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
| 52 | + |
| 53 | +* fix: increase max_new_tokens to 2048 and make configurable |
| 54 | + |
| 55 | +The default of 100 tokens truncated reasoning models mid-thought, producing unparseable output → |
| 56 | + DONE → reward 0.0 → zero gradients. Caused 4 failed training runs (~20 GPU-hours wasted). |
| 57 | + |
| 58 | +- Add max_new_tokens to GRPOConfig (default 2048) - Use config value instead of hardcoded 100 - Add |
| 59 | + truncation warning when generation hits the limit |
| 60 | + |
| 61 | +--------- |
| 62 | + |
| 63 | +Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
| 64 | + |
| 65 | +- Repair broken internal imports, CPU training, and config packaging (OpenAdapt#999) |
| 66 | + ([#63](https://github.com/OpenAdaptAI/openadapt-ml/pull/63), |
| 67 | + [`9b8f3cd`](https://github.com/OpenAdaptAI/openadapt-ml/commit/9b8f3cd8a2e0f95203813338917bc89bae474001)) |
| 68 | + |
| 69 | +* fix: repair broken internal imports, CPU training, and config packaging |
| 70 | + |
| 71 | +Fixes the openadapt-ml side of OpenAdaptAI/OpenAdapt#999: |
| 72 | + |
| 73 | +- Add missing update_current_symlink_to_latest() to training/trainer.py; cmd_serve imported it but |
| 74 | + it never existed, so `openadapt serve` failed with a misleading "openadapt-ml not installed" error |
| 75 | + (bug 2) - scripts/train.py: capture_to_episode(goal=) -> instruction=, matching the actual |
| 76 | + signature (bug 3) - scripts/demo_policy.py: import generate_synthetic_episodes instead of the |
| 77 | + non-existent generate_synthetic_sessions (bug 4) - Ship configs/ inside the wheel (hatch |
| 78 | + force-include) and add resolve_config_path() so installed packages find bundled configs instead of |
| 79 | + failing on repo-relative paths (bug 5) - training/trl_trainer.py: pass use_cpu/bf16/fp16 to |
| 80 | + SFTConfig based on CUDA availability so CPU-only training no longer raises ValueError (bug 7) |
| 81 | + |
| 82 | +Verified: py_compile on all changed files, isolated functional test of |
| 83 | + |
| 84 | +the symlink helper, and wheel build confirming configs are included. |
| 85 | + |
| 86 | +Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
| 87 | + |
| 88 | +* fix: respect MPS in CPU fallback, prefer run-like dirs for symlink |
| 89 | + |
| 90 | +- use_cpu now stays False on Apple Silicon (MPS) so the previous accelerated path isn't regressed; |
| 91 | + only true CPU-only setups get use_cpu=True - update_current_symlink_to_latest prefers directories |
| 92 | + containing training_log.json or dashboard.html so a stray top-level "checkpoints" directory from |
| 93 | + the old flat layout can't win |
| 94 | + |
| 95 | +* style: ruff format grpo modules (pre-existing violations blocking CI) |
| 96 | + |
| 97 | +These two files fail 'ruff format --check' on main as well; formatting them here so the test matrix |
| 98 | + can actually run. |
| 99 | + |
| 100 | +--------- |
| 101 | + |
| 102 | +Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |
| 103 | + |
| 104 | +### Features |
| 105 | + |
| 106 | +- Add --task-dir support for milestone-based rewards in standalone GRPO trainer |
| 107 | + ([#60](https://github.com/OpenAdaptAI/openadapt-ml/pull/60), |
| 108 | + [`7d095da`](https://github.com/OpenAdaptAI/openadapt-ml/commit/7d095dabbcf39b4146eb3bb5a28d12bde95a6bd7)) |
| 109 | + |
| 110 | +* fix: include image placeholder in chat template for VLM GRPO |
| 111 | + |
| 112 | +Qwen2.5-VL requires <|image_pad|> tokens in the input. These are inserted by apply_chat_template |
| 113 | + only when messages include {"type": "image"} content blocks. |
| 114 | + |
| 115 | +Fixed both agent_fn and _compute_rollout_loss. |
| 116 | + |
| 117 | +Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
| 118 | + |
| 119 | +* feat: add --task-dir support for milestone-based rewards in standalone GRPO trainer |
| 120 | + |
| 121 | +- GRPOConfig: add task_dir field - reward.py: evaluate_milestones_screenshot() for client-side |
| 122 | + reward - trainer.py: load TaskConfigs, auto-populate task_ids, override rewards - |
| 123 | + rollout_collector.py: pass task_configs to env - No WAA evaluate endpoint needed — rewards |
| 124 | + computed via VLM judge |
| 125 | + |
| 126 | +--------- |
| 127 | + |
| 128 | +Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
| 129 | + |
| 130 | + |
4 | 131 | ## v0.15.1 (2026-03-21) |
5 | 132 |
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6 | 133 | ### Bug Fixes |
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