- Breaking changes: promote Elasticsearch rotation and index‑cleaner feature gates to beta and drop support for Elasticsearch v6, with related config deprecations.
- Backend upgrades include configurable max trace duration, native trace summaries, OpenSearch selection flag, genai span attributes, AI gateway session endpoints, and migration to an owned Elasticsearch client with new batch‑write API.
- UI enhancements and bug fixes: genai tab content rendering toggles, markdown support, improved flamegraph view, search sorting and latency tracking, plus numerous dark‑mode and tooltip fixes.
Release v2.20.0
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Added a new /api/v3/trace summaries endpoint and migrated UI search to use it, introducing lightweight trace summary API (feature, breaking).