v0.26.1

What's Changed

• Fix vLLM error for tools usage not supported when running GRPO training by @apalmas-saifh in #4663
• Fix GRPO config validation in case num_generations_eval is specified and different than num_generations by @apalmas-saifh in #4682

New Contributors

• @apalmas-saifh made their first contribution in #4663

Full Changelog: v0.26.0...v0.26.1