https://aitoolchain.io/tools/nemo-guardrails New releases and features in NeMo Guardrails, tracked by The AI Toolchain. en Wed, 26 Aug 2026 19:31:04 GMT https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.24.0 https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.24.0 Wed, 26 Aug 2026 19:31:04 GMT NeMo Guardrails v0.24.0 adds RailOutcome, rail manifests, F5 integration, health endpoints, and expands IORails to 59 built-in rails. • Adds `RailOutcome` — an engine-neutral allow, block, or transform result that both `LLMRails` and `IORails` can enforce from a single rail action return value. • Adds typed rail manifests so built-in rails declare their configuration, actions, execution surfaces, requirements, and privacy properties for automatic discovery by both engines. • Adds `/v1/health` and `/healthz` server health-check endpoints. • Adds output-rail checking mode to the `/v1/checks` endpoint, which now selects a server-loaded configuration via `config_id` or the server default. • Adds F5 Guardrails integration as a new built-in library rail. • Adds a canonical outbound HTTP client shared by all built-in integrations, providing connection pooling, retries, TLS, error handling, lifecycle management, and privacy-safe tracing and metrics. • Adds shared model telemetry and an instrumented model decorator for LLM call observability. • Expands IORails to execute 59 of the library's 67 action-backed input and output surfaces, including community integrations and content-transforming rails, sharing the same rail implementations as `LLMRails`. • Supports running multiple self-check rails simultaneously with per-rail namespaced task prompts. • IORails now returns `GenerationResponse` from non-streaming generate() and generate_async() calls when generation options are supplied. Breaking changes: • Custom actions using @action(output_mapping=...) must remove that argument and return an explicit `RailOutcome` instead. • The `hf-classifier` install extra is removed; install `transformers` and `torch` directly for the local classifier backend. • IORails generate() and generate_async() calls that supply generation options now return `GenerationResponse`; message lists must be passed with `messages=` as a keyword argument rather than positionally. • Custom Colang 1 flows using the former space-separated Cleanlab, Fiddler, or GCP action names must switch to their `snake_case` names. • `/v1/checks` no longer accepts inline configuration; select a server-loaded configuration using `config_id` or rely on the server default. • Chat Completions requests must use supported role-specific OpenAI message shapes; internal event payloads, unexpected fields, and audio requests are now rejected.