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[BUG] running into an error when opening a session in Phoenix (self-hosted)

bugSomething isn't workingSomething isn't working

c/serverServer implementationServer implementation

Status: Open.

#12567 In Arize-ai/phoenix;

· omairiai opened on Apr 7, 2026

[ENHANCEMENT]: span-level eval to surface context-quality drops across multi-hop retrieval chains

c/evals

c/traces

enhancementNew feature or requestNew feature or request

triageissues that need triageissues that need triage

Status: Open.

#12552 In Arize-ai/phoenix;

· Ruthwik-Data opened on Apr 6, 2026

[docs] ATIF to trace utility

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#12528 In Arize-ai/phoenix;

· ehutt opened on Apr 3, 2026

[rest api] add attribute filters for GET /v1/spans

c/filters

enhancementNew feature or requestNew feature or request

Status: Open.

#12522 In Arize-ai/phoenix;

· mikeldking opened on Apr 2, 2026

[js] colocate / re-export openinference-core decorators with phoenix-otel

enhancementNew feature or requestNew feature or request

javascriptPull requests that update Javascript codePull requests that update Javascript code

Status: Open.

#12516 In Arize-ai/phoenix;

· mikeldking opened on Apr 2, 2026

Remove dead /v1/evaluations endpoint and deprecated Evaluations types

c/serverServer implementationServer implementation

Status: Open.

#12474 In Arize-ai/phoenix;

· RogerHYang opened on Mar 31, 2026

[performance] move spans table onto the taces

c/traces

Status: Open.

#12473 In Arize-ai/phoenix;

· mikeldking opened on Mar 31, 2026

Add unit tests for LLM adapter _build_messages methods

c/evals

Status: Open.

#12465 In Arize-ai/phoenix;

· ehutt opened on Mar 31, 2026

Unable to open User Interface localhost:6006 after version 13

bugSomething isn't workingSomething isn't working

c/ui

Status: Open.

#12455 In Arize-ai/phoenix;

· rasikasonar opened on Mar 30, 2026

[trajectories] pass through trace ID to python client

c/traces

pythonPull requests that update Python codePull requests that update Python code

Status: Open.

#12454 In Arize-ai/phoenix;

· mikeldking opened on Mar 30, 2026

[trajectories] pass through trace ID to python client

c/traces

pythonPull requests that update Python codePull requests that update Python code

Status: Open.

#12453 In Arize-ai/phoenix;

· mikeldking opened on Mar 30, 2026

[design] [agents] user flows for using the agent

Status: Open.

#12452 In Arize-ai/phoenix;

· mikeldking opened on Mar 30, 2026