20.4.0 (2026-08-26) ⚠ BREAKING CHANGES server: GET /v1/model_providers no longer returns custom providers or a next_cursor, and built-in entries expose provider rather than kind + provider_key. Custom providers move to GET /v1/custom_model_providers. The endpoint is unreleased, so no published client is affected.
3.3.0 (2026-08-22) Features pxi: enable phoenix-gql mutations by default with approval in manual mode (391d0dd)
3.5.0 (2026-08-21) Features evals: add retrieval relevance evaluator (7efa7b2)
3.2.0 (2026-08-14) Features server: add POST /traces/transfer (5c38cc7)
20.2.0 (2026-08-13) Features agents: emit a machine-readable approval decision on gated PXI tools (f46fced) Bug Fixes cost: update built-in model token prices (36d02ab) Documentation add Phoenix release notes (63e89b0) filters: add span & session filter expressions reference (876c5a0)
20.1.0 (2026-08-12) Features auth: support JWT client assertion for OAuth2 login (3b277cf) refine evaluation metric chart layout and controls (39740fa) server: add POST /traces/transfer (5c38cc7) Bug Fixes agents: prevent exported session ID collisions (4e828c3) route OpenAI reasoning models to the Responses API client (2d44558) Documentation add v20.0.0...
3.0.0 (2026-08-11) ⚠ BREAKING CHANGES client: replace google-generativeai formatter with google-genai Features add REST endpoint for prompt metadata updates (244ef9c) agents: move PXI tracing server-side (ea40aea) api: add REST endpoints for setting tags on experiments (c892873) api: expose dataset example source span (e0cf022) api: REST CRUD for user and...
19.20.0 (2026-08-10) Features add copy actions to session turns (b9999ae) server: add dataset split create/update/delete REST endpoints (b4d9b19) Bug Fixes app: unblock project navigation during loader fetches (e11b1c3) deps: update arize-phoenix-otel to 0.17.0 (f413867)
3.4.0 (2026-08-08) Features evals: add hallucination evaluator (1aa1a84)
19.19.0 (2026-08-06) Features ui: collapse all but the last message in LLM spans (11f418f) Bug Fixes db: replace sqlean.py with arize-phoenix-sqlean (0fc6f0a) Documentation remove Arize AX from tutorial and get-started flows (e75fec0) update API reference to include chat completions (3af38bd)
0.1.0 (2026-08-05) Features phoenix-sqlean: vendor nalgeon/sqlean.py as arize-phoenix-sqlean (3945ff4)
19.16.0 (2026-08-04) Features server: OpenAI-compatible v1/chat/completions proxy with server-side credentials (6ab57db) ui: preview card contents while collapsed (98b82ba) Bug Fixes render exception stack traces in events (5ca716e) ui: carry the time range forward from the project list into project details (d9421a4) Performance Improvements ui: parallelize...
19.14.0 (2026-08-03) Features evals: add hallucination evaluator (1aa1a84) Bug Fixes traces: render ReasoningPart in gen_ai message flattening (05d5999), closes #14962
19.13.0 (2026-08-01) Features app: include span and trace annotations in span exports (f9fa685) experiments: lift metric chart selection limit (6f647cb)
Releasesby Glyph