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Changelog

trl

Train transformer language models with reinforcement learning.

NewFebruary 3, 2026

v0.27.2

Remove access to warnings_issued by @qgallouedec in #4960
Fix SFTTrainer init logic: remove TrainingArguments.push_to_hub_token only for transformers < v5 by @albertvillanova in #4942
Fix extra EOS appended in DPO preprocessing for conversational data by @qgallouedec in https://github.com/huggingface/trl/pull/4908

Full Changelog: https://github.com/huggingface/trl/compare/v0.27.1...v0.27.2

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