What's Changed

• [Feature] Support DPO, ORPO and Reward Model by @RangiLyu in https://github.com/InternLM/xtuner/pull/743
• [Bugs] fix dispatch bugs by @HIT-cwh in https://github.com/InternLM/xtuner/pull/775
• [Bugs] Fix HFCheckpointHook bugs when training deepseekv2 and mixtral withou… by @HIT-cwh in https://github.com/InternLM/xtuner/pull/774
• [Feature] Support the scenario where sp size is not divisible by attn head num by @HIT-cwh in https://github.com/InternLM/xtuner/pull/769
• bump version to 0.1.21 by @HIT-cwh in https://github.com/InternLM/xtuner/pull/776

Full Changelog: https://github.com/InternLM/xtuner/compare/v0.1.20...v0.1.21