phoenix

varize-phoenix-client-v2.7.0 scope: arize-phoenix-client Breaking

This release includes 1 breaking change for platform teams planning a safe upgrade.

Published 20d Tracing

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✓ No known CVEs patched

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✓ 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

ReleasePort's take

Light signal

editorial:auto 9d

The release adds a /agents/{agent_id}/sessions/{session_id}/summary endpoint and ATIF v1.7 trajectory upload support to the client.

Why it matters: New API endpoint provides session summaries; ATIF v1.7 upload enables higher‑resolution data ingestion for workflows.

Summary

AI summary

Add /agents/{agent_id}/sessions/{session_id}/summary endpoint and support ATIF v1.7 trajectory upload.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Add /agents/{agent_id}/sessions/{session_id}/summary endpoint for agents. Add /agents/{agent_id}/sessions/{session_id}/summary endpoint for agents. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Playground manipulation tools with confirmation for agents. Playground manipulation tools with confirmation for agents. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Type frontend REST calls against the OpenAPI schema in app. Type frontend REST calls against the OpenAPI schema in app. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Cap agent session retention duration. Cap agent session retention duration. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Support ATIF v1.7 trajectory upload in client. Support ATIF v1.7 trajectory upload in client. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Add TypeScript trace annotations and clarify note semantics in phoenix-client. Add TypeScript trace annotations and clarify note semantics in phoenix-client. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Include token counts in span/trace/session payloads for rest-api. Include token counts in span/trace/session payloads for rest-api. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Introduce session-tagged identifiers for open/axial coding workflows. Introduce session-tagged identifiers for open/axial coding workflows. Source: llm_adapter@2026-05-21 Confidence: high	—
Feature	Medium	Add vendor passthrough tools support. Add vendor passthrough tools support. Source: llm_adapter@2026-05-21 Confidence: high	—
Refactor	Medium	Remove v1 /chat route and associated code from agents. Remove v1 /chat route and associated code from agents. Source: llm_adapter@2026-05-21 Confidence: high	—

Full changelog

2.7.0 (2026-05-15)

Features

agents: add /agents/{agent_id}/sessions/{session_id}/summary endpoint (#13095) (419c3a0)
agents: Playground manipulation tools w/ confirmation (#13093) (37dc417)
agents: rip v1 /chat route and associated code (#13140) (71ceeb3)
app: type frontend REST calls against the OpenAPI schema (#13060) (590669d)
cap agent session retention (#13220) (1c28249)
client: support ATIF v1.7 trajectory upload (#13107) (17f2ec2)
phoenix-client: add TS trace annotations + clarify note semantics + skills audit (#12923) (2993b04)
rest-api: include token counts in span/trace/session payloads (#12926) (c0c0edb)
session-tagged identifiers for open/axial coding workflows (#13083) (6dceb10)
vendor passthrough tools support (#12533) (41e8fe0)

Documentation

add LinkedIn social links alongside X/Bluesky (#12993) (5d14f23)

Breaking Changes

Removed /chat route and associated code (rip v1 /chat).

View diff on GitHub

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Earlier breaking changes

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