# Hugging Face — TRL v1.0: Post-Training Library Built to Move with the Field

- Company: Hugging Face (huggingface.co)
- Announced: 2026-03-31T00:00:00+00:00
- Category: developer-tool-release
- Subject: Platform
- Source: https://huggingface.co/blog/trl-v1
- Record: https://forck.live/items/1529-trl-v1-0-post-training-library-built-to-move-with-the-field

Hugging Face releases TRL v1.0, marking a shift from a research codebase to a stable library for post-training methods, now implementing over 75 methods with a stable/experimental split and semantic versioning.

## Evidence

Verbatim from https://huggingface.co/blog/trl-v1:

> We’re releasing TRL v1.0, and it marks a real shift in what TRL is.

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Record: https://forck.live/items/1529-trl-v1-0-post-training-library-built-to-move-with-the-field
Catalogue: https://forck.live/llms.txt
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