arize-phoenix: v19.5.0

19.5.0 (2026-07-23)

Features

• add evaluation metrics aggregation APIs (#14445) (ad41a4d)
• agents: online trace evals with tool_count_per_turn and user_friction (#14503) (bdff4b5)
• api: expose dataset example source span (#13814) (e0cf022)
• evals: add toxicity gallery template with input/output-agnostic benchmark (#14636) (1082155)
• playground: add Gemini 3.6 Flash and 3.5 Flash-lite support (#14658) (60997e8)
• ui: add semantic PXI tool icons (#14688) (3aa3527)

Bug Fixes

• cost: update built-in model token prices (#14616) (d45705b)
• deps: declare FastMCP client extra (#14663) (11a587d)
• deps: update arize-phoenix-evals to 3.2.0 (#14596) (efd5005)
• focus ring token consistency (#14625) (c32d955)
• pxi: report current context token usage (#14670) (208f02f)
• ui: close time range selector on focus exit (#14631) (bf502e7)
• ui: commit column reorder during drag so headers stay in sync with body (#14651) (92bce42), closes #14609
• ui: preserve line breaks in user chat messages (#14660) (a990381)

Documentation

• add coding harness tracing integration pages (#14184) (9f2094f)
• Add Phoenix release notes — 2026-07-22 (#14619) (d1b68dc)
• close weekly docs gaps (playground default, api-key REST reference, px auth, MCP settings, Gemini CLI) (#14640) (dee59ed)
• comprehensive top-level README (#14647) (84527b8)