arize-phoenix: v20.5.0

20.5.0 (2026-09-01)

Features

• add skill tools to mcp and use them in pxi (#15642) (8adf337)
• agents: PXI tool to file GitHub issues with a user-supplied token (#15780) (e3b3dd5)
• datagen: add a sidecar that replays a recorded trace corpus (#15614) (b86acac)
• evals: add session-level pii_detection evaluator (#15096) (0e3b2c2)
• js: add getCurrentUser helper (#15739) (773c5e5)
• phoenix-client: add retention policy assignment helper (#15746) (37916d7)
• playground: add support for claude-fable-5-1 (#15814) (3a836f7)
• prompts: add REST prompt version creation (#13846) (dbf15e9)
• pxi: gate execute_browser_action scripts behind whole-script approval (#15628) (77de515)

Bug Fixes

• cost-tracking: sync LiteLLM reasoning token rates into the cost manifest (#15164) (b0c1e60)
• cost: update built-in model token prices (#15711) (dc84891)
• cost: update built-in model token prices (#15757) (b914e9a)
• deps: update arize-phoenix-evals to 3.6.0 (#15825) (28e1093)
• dsl: correlate the parent test to the span an annotation filter is reading (#15710) (269986c)
• mcp/sql: harden the analytics SQL surface (#15580) (35160b3)
• playground: preserve tool choice and strict setting for Anthropic and Bedrock (#15683) (5464de4)
• sandbox: survive concurrent access to the shared WASM binary cache (#15796) (7c1ff0d)
• traces: keyset pagination for listProjectTraces (#15468) (bfec5c9)

Documentation

• Add Phoenix release notes — 2026-08-26 (#15630) (d94e7db)
• condense Arize AX section in README (#15800) (8bdd210)
• mention Arize AX in Phoenix README (#15758) (74f8dad)