2026 05 26

AND/OR Condition Grouping in Alerts

Alert rules now support structured condition grouping: conditions within a group are evaluated with AND, while groups themselves are combined with OR. This makes it possible to express logic such as "flag a trace if (hallucination score > 0.8 AND relevance score < 0.3) OR (toxicity score > 0.5)".

Existing single-condition alerts continue to work exactly as before — each legacy condition is automatically treated as its own group, so no migration is needed.

Bug Fixes & Improvements

• Prompt masks (Python & TypeScript SDKs) — prompt_mask_context(masks) / promptMaskContext(masks) lets you run agent code with specific prompt IDs silently redirected to a different version ID, non-destructively. The agent calls get_prompt() as usual and receives the overridden template without any permanent change to the prompt library. Designed for A/B testing and optimizer sweep scenarios.
• Experiments: dataset version shown inline — the dataset version is now displayed as a pill alongside the item source in both the experiments table and the experiment detail header. The standalone "Test suite version" column has been removed; the same information is now visible in context.
• Dataset items: conflicting key names no longer cause errors — iterating a dataset whose items contain a key that matches a DatasetItem field (e.g. id, as in HotpotQA) previously raised TypeError: multiple values for keyword argument. The SDK now strips conflicting keys and emits a one-time warning so iteration completes.
• Harbor integration: supports harbor <0.8 and >=0.8 — track_harbor() now patches whichever method name the installed version of harbor exposes (_setup_environment or _setup_agent_environment), so tracing works regardless of which version is installed.
• New Playground models — Gemini 3.5 Flash and qwen/qwen3.7-max are now available in the model picker.

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And much more! 👉 See full commit log on GitHub

Releases: 2.0.42, 2.0.43, 2.0.44, 2.0.45, 2.0.46, 2.0.47