Arize Phoenix

This release introduces improved agent accessibility via modal overlays and fixes an issue related to token count confinement during ingestion.

Version 16.1.0 introduces several UI and agent enhancements, including a new eval dataset skill and floating assistant panel in PXI, alongside bug fixes for token counting and model prices.

Version 16.0.0 introduces powerful Sandboxed Code Evaluators for flexible evaluation strategy composition and enables native web search/fetch for agents. This release contains breaking changes requiring migration.

Version 15.12.0 introduces new features for agent tool metadata and UI interaction, alongside several bug fixes addressing scrolling, routing, playground configuration, and run visualization.

Version 15.11.1 primarily addresses a bug fix related to PXI agent system prompt instrumentation on LLM spans.

This release introduces generative UI rendering capabilities within agent chats and includes several bug fixes related to server configuration and build processes.

This patch release fixes two bugs related to agent span persistence and PXI cache reporting in the application, alongside documentation cleanup.

Version 15.10.0 introduces several UI and agent enhancements, including a trace feedback toolbar and curated agent menus, alongside updates to tracing attribute standards and bug fixes for metadata layout and token prices.

This release introduces significant updates to agent functionality, including new API endpoints and playground tools, alongside improvements to client-side tracing and REST API payload details. Notably, the v1 /chat route has been removed.

Version 15.9.0 introduces feature enhancements for agent tool span tracking and resolves bugs related to agent consent and GraphQL node handling.

This release introduces new controls for Anthropic and Google in the playground, improves agent tracing by populating project sessions, and includes several bug fixes related to token prices and security.

Version 15.7.0 introduces user feedback annotations, session tagging improvements, and updates the UI toast behavior. This release also removes the deprecated v1 agent /chat route.

This release introduces new agent session summary endpoints and playground preference settings. It also fixes an issue related to interrupted tool calls.

Patch release 15.5.1 primarily addresses a bug fix related to preserving built-in evaluators during dataset evaluator deletion.

This release introduces experimental support for /chat-v2 with tools and improves frontend REST call typing. It also addresses dependency vulnerabilities by updating litellm.

Version 15.4.0 introduces significant enhancements to agents, adds filter-based DELETE endpoints via the API, and includes token counts in REST API payloads. A bug related to trace selection in the session view was also resolved.

Version 15.3.0 introduces feature enhancements like removing user instructions from PXI and adding an empty state shader for chat, alongside dependency updates and documentation improvements.

Version 3.1.0 introduces server-side prompt assembly and caching for agents, alongside improvements to prompt handling in evals and a fix for model capability listings.

This release primarily updates documentation by adding LinkedIn social links alongside existing X/Bluesky links.

This release introduces TanStack AI tracing integration and moves PXI prompt assembly server-side for agents. It also includes several bug fixes, notably addressing an SSRF vulnerability in the agent chat endpoint.

Version 15.1.0 introduces new features across API, CLI, and phoenix-client, including annotation querying, auth profile management, and TS trace annotations, alongside several bug fixes.

This release introduces dataset upsert functionality and adds an API endpoint for session notes. It also includes a breaking change related to dataset upsert implementation.

Version 15.0.0 introduces dataset upsert capabilities and extends database prompt types for invocation parameters.

Version 14.17.0 introduces enhanced agent configuration flexibility and a new API endpoint for session notes, alongside several bug fixes including updated token prices and context leak prevention.

Version 14.16.0 introduces new agent context advertising and server-side GraphQL field redaction. It also includes several bug fixes related to Relay query ownership and token price updates.

Version 14.15.0 introduces new UX toggles for sessions and adds a new skills audit feature. A critical bug fix addressed an SSRF vulnerability by requiring authentication for custom provider credential tests.

This release introduces a new REST endpoint for trace notes within the Phoenix CLI, enhancing command-line interaction capabilities.

Version 14.14.0 introduces trace note support to the px command-line interface.

This release introduces a dedicated span notes column in the UI and adds a trace note REST endpoint for the Phoenix CLI. It also updates built-in model token prices.

This release introduces new exports within the phoenix-otel package, specifically re-exporting openinference helpers, decorators, and semconv.

This release introduces new tracing visualization features, including trace annotations and span aggregation, alongside several application and data handling bug fixes.

This release introduces new features for agent session evaluation and secrets management, alongside a critical dependency update migrating `authlib.jose` to `joserfc`.

Version 2.4.0 introduces the ability to pass trace_id to experiment evaluators and adds type-aware attribute filtering to the /v1/spans REST API endpoint.

Version 14.10.0 introduces token count display for chat sessions and resolves dependency pinning and configuration alignment issues.

Patch release v14.9.1 primarily addresses a database-related bug fix concerning Azure AsyncEngine handling.

Version 14.9.0 introduces new PXI controls, adds Claude Opus 4.7 support, and includes several UI and API enhancements alongside minor bug fixes.

Version 14.8.0 introduces new database connectivity features, specifically enabling Azure managed identity authentication for PostgreSQL.

Version 14.7.0 introduces session pagination and trace annotation dataloader support, alongside UI improvements for the projects page refresh cycle.

Phoenix version 14.6.0 introduces an evaluation harness for agents and updates the application layout for session turns. This release also includes CI improvements and better tracking of evaluation failures.

Release 14.5.0 introduces new features for chat metadata, CLI annotations, and agent controls, alongside a fix for malformed pxi skill YAML files.

Version 14.4.0 introduces a new capability registry for agent tooling and resolves an issue by unpinning the graphql-core dependency.

Version 14.3.1 primarily focuses on a security enhancement by hardening the authentication mechanism during dataset uploads.

Version 14.3.0 introduces an assistant agent settings page and updates internal dependency handling for strawberry-graphql compatibility.

This patch release removes WebSocket support for GraphQL subscriptions, migrating to HTTP multipart for better compatibility and stability.

Version 14.2.0 introduces a new API endpoint for accessing projects by name and includes documentation updates.

Version 14.1.1 primarily addresses a bug related to connection exhaustion by implementing dataloader for session annotations.

Phoenix version 14.1.0 primarily focuses on bug fixes, including improvements to OpenAPI examples, agent error surfacing, and environment variable handling for SQL schema.

This patch release deprecates the evals 1.0 API and removes the associated legacy experiments module.

Version 3.0.0 introduces a major overhaul to the evals system by deprecating and removing the legacy evals 1.0 API and the associated experiments module.

Version 14.0.0 introduces major architectural changes, including a subcommand-first CLI structure and the removal of legacy evaluation and client plumbing. Key features include enhanced agent tooling, PostgreSQL read replica support, and ephemeral experiment handling.

This release introduces a new utility for converting ATiF traces into trajectory format.

Version 13.23.0 introduces bundled TypeScript SDK documentation in npm packages and resolves a bug with the Playground button in the prompts table.

Patch release 13.22.2 primarily addresses a database query optimization within the ProjectHasTracesDataLoader.

This patch release focuses on performance improvements by optimizing database queries and reducing redundant data fetching during initialization.

This release introduces new REST API endpoints for user information and secrets management, alongside adding the get_traces method to clients and supporting Python 3.14.

This release introduces official support for Python 3.14, with the exception of Windows environments.

This release introduces minor UI updates, including new icons, and fixes an installation issue specific to Windows and Python 3.14 environments.

This release introduces Python 3.14 support, enhances agent session summaries, and adds a REST endpoint for server secrets management.

This release introduces new REST API endpoints for managing prompt versions and tags, alongside UI improvements including a new CopyField component.

This patch release primarily addresses a usability bug in the UI related to model menu search focus.

This patch release includes a bug fix for TracesTable interface updates and documentation improvements for the phoenix CLI.

Version 13.19.0 introduces new UI components like PromptInput, enhances agent chat performance, and fixes a critical dependency issue with FastAPI.

This patch release primarily updates the dependency on arize-phoenix-evals to version 2.12.0.

Version 2.12.0 introduces support for structured data inputs in evals and patches several bugs, including a security-related pin on the LiteLLM dependency.

This patch release addresses a security concern by pinning the LiteLLM dependency to a safe version.

This release introduces a new prompt version diff view in the application and updates the rendering engine by replacing all markdown processing with streamdown.

Version 13.17.0 introduces an experimental simulated bash tool for agents and adds clipboard copying for spanIDs. This release also addresses several dependency vulnerabilities and improves compatibility with Starlette 1.0+.

This release introduces significant feature enhancements across skills, CLI, and UI, including new onboarding snippets and agent tooling. It also deprecates `useNotifyError` in favor of inline alert banners for error handling.

This release introduces new filtering capabilities for spans via the getSpans method in the client.

Version 2.0.1 primarily introduces a bug fix related to server version gating and capability requirements within the client.

This release introduces a new `phoenix db migrate` subcommand and enhances the server API with new trace retrieval and filtering capabilities. It also updates the internal client dependency and improves compatibility for certain LLM providers.

Version 2.0.0 introduces significant updates including new LLM provider integrations and the removal of the deprecated `client.annotations` in favor of `client.spans`.

This release introduces new features like the phoenix-pr-screenshot slash command and session conversation API support in clients. It also includes bug fixes related to dialog content scrolling.

Version 13.13.0 introduces UI filtering for model providers via environment variables and enhances the dataset view with drag-and-drop functionality. This release also removes the deprecated client.annotations module and splits side navigation APIs.

This release introduces new features like feature-flagged tracing onboarding and a new PackageManagerCommandBlock component, alongside several bug fixes across the playground, server, and UI components.

This release introduces major enhancements to the playground by adding built-in support for Perplexity AI and Together AI as new LLM providers, complete with model listings and cost tracking.

This release introduces four new first-class AI providers (Cerebras, Fireworks AI, Groq, Moonshot) with automatic cost tracking, updates the playground with the latest OpenAI models, and enhances the UI with editable project settings and improved experiment indicators.

Version 13.9.0 introduces filetype-agnostic dataset uploads and adds trace_id filtering to span retrieval endpoints. It also includes dependency updates and improvements to playground error handling.

This release introduces new session management capabilities to the Python client SDK, including session retrieval methods and enhanced session API options.

This release introduces new features like integration icons for Claude/LangGraph, Pydantic Vercel data streaming support for agents, and brute force login protection. It also includes several bug fixes and documentation updates for Claude Agent SDK integration.

This release updates the underlying container image to debian13 and patches dependencies by upgrading arize-phoenix-client and arize-phoenix-otel.

This release introduces expanded Python version compatibility for arize-phoenix-otel, supporting up to Python 3.14, and includes a minor fix to the Slack invitation link.

Version 1.30.0 introduces new GET endpoints for the sessions REST API, enhancing session management capabilities.

Version 13.6.0 introduces new UI annotation features and CLI support for multi-turn conversations, alongside several security and packaging bug fixes.

Version 13.5.0 introduces a configurable password policy and new GET endpoints for the sessions REST API, alongside dependency updates.

Version 2.11.0 introduces new evaluation capabilities to evals, including conciseness and refusal evaluators, alongside a fix for handling recent litellm version changes.

This release introduces several new features, including SQL visibility in stdout and navigation counters, alongside significant internal updates like migrating the application bundler to rolldown-vite and upgrading the AI SDK to v6. Numerous bug fixes address model name support, UI accessibility, and dependency updates.

This patch release (1.29.1) focuses on minor bug fixes, including updating documentation snippets and fixing an issue related to project deletion after experiment deletion.

Version 13.3.0 introduces a new conciseness classification evaluator and removes several UI components related to model inferences and embeddings. Bug fixes include improved error handling for JSONDistanceEvaluator.

Release 13.2.0 introduces support for AWS Bedrock cross-region inference preferences and includes several bug fixes, notably reverting a dependency that caused build issues.

Version 13.1.1 primarily addresses a bug fix related to the ModelMenu query fetch policy.

Version 13.1.0 introduces significant enhancements to table functionality, adds new session skills, and merges the phoenix-sdk-python skill into phoenix-evals. This release also includes various bug fixes related to model pricing and UI theming.

Patch release 13.0.3 primarily addresses a bug fix related to the playground interface.

Version 2.10.0 introduces dataset evaluators, full mustache prompt template support in the server, and enhancements to classification evaluators. A bug fix simplified template formatters.

This patch release primarily addresses dependency updates, specifically upgrading the arize-phoenix-client to version 1.29.0.

This release introduces dataset evaluators, enhancing the capabilities for evaluating datasets within the library.

Version 13.0.1 is a patch release primarily focused on fixing an issue related to file inclusion during package building.

Version 13.0.0 introduces extensive enhancements to LLM evaluation capabilities, including new built-in evaluators, improved playground features, and UI updates. This release contains breaking changes related to dataset evaluators.

This release introduces support for the Claude Opus 4.6 model and includes several bug fixes related to data validation, dependency updates, and improved UX for trace management.

Version 1.28.1 primarily addresses a bug by introducing timezone validation for the log_spans_dataframe function.