15.4.0 (2026-05-05)
Features
- agents: agent set_time_range tool with hardened context injection (#13022) (115c08b)
- agents: ToolPart styles and subcomponents (#12894) (0d4e16b)
- api: add filter-based DELETE endpoints for span/trace/session annotations (#12928) (12779fb)
- rest-api: include token counts in span/trace/session payloads (#12926) (c0c0edb)
- simplify trace/span status icons, use status badge in panel views (#12972) (d8e3915)
- vendor passthrough tools support (#12533) (41e8fe0)