Issues

• Carry terminal truncation metadata through Gym token-capture receipts

  bug
  NVIDIA-NeMo/RL#4737 · Filter by author linj-glitch opened on Oct 15, 2026

• [RFC] Smaller bit-exact refit payloads for cross-cluster sparse-delta refit (old-value-conditioned coding)

  community-requestFeatureSpeed
  NVIDIA-NeMo/RL#4724 · Filter by author Shafwansafi06 opened on Oct 14, 2026

• Async replay-buffer restore doesn't re-age trajectories against resume step; restored buffer replays already-consumed trajectories

  bugcommunity-requestwaiting-on-maintainers
  NVIDIA-NeMo/RL#4708 · Filter by author rkoivunen-sw opened on Oct 13, 2026

• Checkpoint finalize-thread errors surface one step late — training commits past a failed save

  bugcommunity-requestwaiting-on-maintainers
  NVIDIA-NeMo/RL#4707 · Filter by author rkoivunen-sw opened on Oct 13, 2026

• Unify draft embedding/lm_head ownership across Megatron and Automodel (and within Megatron)

  Feature
  NVIDIA-NeMo/RL#4691 · Filter by author yuekaizhang opened on Oct 13, 2026

• Clarify the role of NeMo RL’s built-in evaluator alongside NeMo Gym

  Feature
  NVIDIA-NeMo/RL#4688 · Filter by author cwing-nvidia opened on Oct 13, 2026

• Telemetry: per-process host memory (Ray actor/task breakdown) alongside rl.host.memory.*

  FeatureMemory
  NVIDIA-NeMo/RL#4681 · Filter by author terrykong opened on Oct 12, 2026

• Centralize temperature scaling in loss_input.py instead of the per-backend train paths

  NVIDIA-NeMo/RL#4671 · Filter by author yuki-97 opened on Oct 12, 2026

• Track intentionally unmerged r0.8.0 changes (not yet merged back to main)

  NVIDIA-NeMo/RL#4666 · Filter by author yuki-97 opened on Oct 12, 2026

• Megatron token capture: the TQ media write blocks the engine step

  PerformanceSpeed
  NVIDIA-NeMo/RL#4663 · Filter by author terrykong opened on Oct 12, 2026
  1

  

• Support discard_weights_on_sleep (vLLM sleep level 2) in grpo_train_sync, single controller and async GRPO

  Feature
  NVIDIA-NeMo/RL#4659 · Filter by author yuki-97 opened on Oct 11, 2026

• invalidate_kv_cache() always returns True: worker methods return None, so all([]) makes the success guard dead code

  bugcommunity-request
  NVIDIA-NeMo/RL#4632 · Filter by author shivasathishs-rp opened on Oct 9, 2026

• r0.8.0: pyrefly rejects captured optional config in make_policy_factory, blocking CI

  bug
  NVIDIA-NeMo/RL#4599 · Filter by author fujial-code opened on Oct 8, 2026

• Quantized Nemotron-3 Super recipes fail on MTP quantization and vLLM refit

  bugLow Precisionsuper-v3t-mcoretestingvllm
  NVIDIA-NeMo/RL#4585 · Filter by author sharonyu-115 opened on Oct 8, 2026

• routed_experts: honor resolve_routed_experts_dtype end to end (several paths hard-code int16)

  Memory
  NVIDIA-NeMo/RL#4578 · Filter by author ZhiyuLi-Nvidia opened on Oct 7, 2026

• Sharded NeMo Gym spinup timeout is fixed at 1800s and can expire before external_service_readiness

  bug
  NVIDIA-NeMo/RL#4565 · Filter by author yfw opened on Oct 7, 2026

• Context compaction: support trainer and rollout checkpoint/resume

  Feature
  NVIDIA-NeMo/RL#4558 · Filter by author terrykong opened on Oct 7, 2026

• Context compaction: retry a failed prompt group instead of dropping it

  bug
  NVIDIA-NeMo/RL#4557 · Filter by author terrykong opened on Oct 7, 2026
  1

• Rename the remaining DTensor-named tests and wording to Automodel

  NVIDIA-NeMo/RL#4535 · Filter by author yuki-97 opened on Oct 6, 2026
  

• NCCL-Reshard refit refactoring

  enhancementFeature
  Task

  NVIDIA-NeMo/RL#4523 · Filter by author youngeunkwon0405 opened on Oct 6, 2026
  

• Megatron LoRA refit sends a TP-misordered Mamba in_proj delta to vLLM at TP>1 (Nemotron-H)

  accuracybugcommunity-requestwaiting-on-maintainers
  NVIDIA-NeMo/RL#4471 · Filter by author yoavf opened on Oct 4, 2026

• DTensor LoRA refit sends unmerged base weights to vLLM when activation_checkpointing is on

  accuracybugcommunity-requestwaiting-on-maintainers
  NVIDIA-NeMo/RL#4470 · Filter by author yoavf opened on Oct 4, 2026

• feat(automodel): expose frozen multimodal sharding configuration

  DocumentationFeature
  NVIDIA-NeMo/RL#4455 · Filter by author sharonyu-115 opened on Oct 3, 2026
  1

  

• Track AutoModel HybridEP OOM and metric regressions in excluded recipes

  Memory
  NVIDIA-NeMo/RL#4427 · Filter by author seonjinn opened on Oct 2, 2026

• Support shared-policy multi-agent RL training on the context-compaction capture path

  Feature
  NVIDIA-NeMo/RL#4400 · Filter by author aroshanghias-nvd opened on Oct 1, 2026
  1