phoenix

varize-phoenix-v19.5.0 scope: arize-phoenix Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 3d Tracing

✓ No known CVEs patched

✓ No known CVEs patched in this version

Topics

agents ai-monitoring ai-observability aiengineering anthropic datasets

+10 more

evals langchain llamaindex llm-eval llm-evaluation llmops llms openai prompt-engineering smolagents

Summary

AI summary

Updates Bug Fixes, 19.5.0, and 2026-07-23 across a mixed release.

Full changelog

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)

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)

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)

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AI Observability & Evaluation

varize-phoenix-v19.0.0 GraphQL createUserApiKey and createSystemApiKey reject API-key callers.
varize-phoenix-v18.0.0 Changes session time-range filters to use interval-overlap semantics.
varize-phoenix-v17.0.0 Adds system settings for admin-managed assistant enablement and trace recording policy
varize-phoenix-v16.0.0 Sandboxing and Code Evaluators introduce breaking changes in Phoenix v16.0.0.
varize-phoenix-v15.7.0 Removes v1 /chat route and associated code