v0.20.0

[Pouyanpi]

What's Changed

This release adds support for reasoning-capable content safety models like Nemotron-Content-Safety-Reasoning-4B (with configurable /think mode for explainable moderation), GLiNER for open-source PII detection, and multilingual refusal messages in content safety rails, along with a major documentation restructuring. Streaming configuration has been simplified (note: the streaming field has been removed from the config).

🚀 Features

• (llm) Propagate model and base URL in LLMCallException; improve error handling (#1502)
• (content_safety) Add support to auto select multilingual refusal bot messages (#1530)
• (library) Adding GLiNER for PII detection (open alternative to PrivateAI) (#1545)
• (benchmark) Implement Mock LLM streaming (#1564)
• (library) Add reasoning guardrail connector (#1565)

🐛 Bug Fixes

• (models) Surface relevant exception when initializing langchain model (#1516)
• (llm) Filter temperature parameter for OpenAI reasoning models (#1526)
• (bot-thinking) Tackle bug with reasoning trace leak across llm calls (#1582)
• (providers) Handle langchain 1.2.1 dict type for _SUPPORTED_PROVIDERS (#1589)

🚜 Refactor

• (streaming) [breaking] Drop streaming field from config (#1538)

⚙️ Miscellaneous Tasks

• (test) Reduce default pytest log level from DEBUG to WARNING (#1523)
• (docker) Upgrade to Python 3.12-slim base image (#1522)
• Run pre-commits to update license date for 2026 (#1562)
• Move Benchmark code to top-level (#1559)
• Update repo to https://github.com/NVIDIA-NeMo/Guardrails (#1594)

New Contributors

• @alexahaushalter made their first contribution in docs: PM updates to Guardrails library docs #1543
• @andreatgretel made their first contribution in feat(library): adding GLiNER for PII detection (open alternative to PrivateAI) #1545

Full Changelog: v0.19.0...v0.20.0

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This discussion was created from the release v0.20.0.