# arize-phoenix: v20.21.2

Category: safety-research
Published: 2026-10-13T16:04:09Z
Source: [Arize Phoenix releases](https://github.com/Arize-ai/phoenix/releases/tag/arize-phoenix-v20.21.2)
Agent usefulness: 57/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-13T18:17:37.743Z
Tags: observability, evaluation, tracing

## Human Summary
Arize Phoenix v20.21.2 fixes PostgreSQL latency float coercion in experiments and normalizes GraphQL retrieval summary counts to integers.

## Agent Summary
Arize Phoenix released v20.21.2 with bug fixes: coercing average repeated-run latency to float on PostgreSQL and normalizing retrieval summary counts to integers in GraphQL.

## Body
Arize Phoenix release v20.21.2 addresses two bug fixes: coercing average repeated-run latency to float on PostgreSQL (commit c05a170, PR 16957) and normalizing retrieval summary counts to integers in the GraphQL interface (commit 9735fc9, PR 16960).

## Recommended actions
- Upgrade arize-phoenix to v20.21.2 if encountering type errors with latency metrics on PostgreSQL or retrieval summary counts in GraphQL.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.