Releasesby GlyphClaude Code 2.1.277
What's changed Added AGENTS.md support: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead; change it under "Project instructions" in /config (not yet on Bedrock, Vertex or Foundry) Added CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY=1 for Claude apps gateways whose only egress is a forward proxy: every outbound request hands the proxy the...
Also shipped Sep 18, 2026Anthropic in September 2026 →
Databricks Apps telemetry is now generally available
Configuring telemetry for your Databricks apps is now generally available. Databricks Apps telemetry collects traces, logs, and metrics and persists them to Unity Catalog tables using the OpenTelemetry (OTel) protocol.
Lakebase Search is generally available
Lakebase Search is now generally available. It brings scalable vector and keyword search to Lakebase projects through two Postgres extensions, so you can run semantic and exact-term search in a single database without a separate search stack: lakebase_vector adds the lakebase_ann index type for approximate nearest-neighbor vector search.
Apache Iceberg™ tables: Partition evolution (General availability)
With this release, we're pleased to announce the general availability of partition evolution for Snowflake-managed Iceberg tables. You can now change a table's partition specification after you create the table by adding, dropping, or replacing partition fields, without rewriting existing data.
xAI's Grok 4.6 is generally available
Grok 4.6 is now generally available (GA) and available for production use on the global endpoint and the US multi-region endpoint.
Gemini Enterprise: Support for new actions (Public Preview)
Support for new actions is available in Public Preview for the following data stores: Microsoft OneDrive : Copy folder, move file, move folder, rename file, rename folder, share file or folder, and update file properties. Microsoft Outlook : Create calendar, RSVP to event, and update calendar.
Agent Platform SDK for Python version 2.0.1 is available
Version 2.0.1 of the Agent Platform SDK for Python ( google-cloud-agentplatform ) is now available. This release migrates generative AI modules to the Google Gen AI SDK, decouples the agent surface from google-cloud-aiplatform into a dedicated package, and introduces restructured namespaces.
More from Claude CodeEvery Claude Code release →
Claude Code 2.1.276
What's changed Fixed every request failing with 400 … Input tag 'advisor_20260301' when ANTHROPIC_BASE_URL points at a proxy or gateway (2.1.275 regression)
Claude Code 2.1.278
What's changed Changed auto mode for Claude API and Enterprise users, and on Bedrock, Vertex, Foundry and gateways, to default to the server-side classifier, which does not charge for classifier overhead ( CLAUDE_CODE_AUTO_MODE_SERVER=0 opts out on Bedrock, Vertex, Foundry and gateways); warns on billed fallback.
Claude Code 2.1.275
What's changed Added the signed-in account to Claude apps gateway sign-in: when the gateway names it, you confirm it before the credential is saved, and /status shows it Added a send-now key (ctrl+enter, or ctrl+x ctrl+s) that interrupts the current turn and sends all queued messages at once; sent and queued messages show in gray until the model receives...
Claude Code 2.1.274
What's changed Added a visible warning when memory usage is critical, with steps to free memory or restart safely Added CLAUDE_CODE_MCP_STARTUP_WAIT_MS to bound how long the first non-interactive turn waits for connecting MCP servers ( 0 = don't wait) Added effort attribute to the claude_code.llm_request OpenTelemetry trace span, matching the api_request...
Claude Code 2.1.273
What's changed Added x-claude-code-request-class , x-claude-code-agent-type , x-claude-code-prev-tool-durations , x-claude-code-compaction and x-claude-code-context-compacted request headers for LLM gateways; opt in with CLAUDE_CODE_GATEWAY_HINT_HEADERS=1 Added a notification when an MCP server disconnects mid-session and automatic reconnection gives up...
Claude Code 2.1.272
What's changed Bug fixes and reliability improvements
Claude Code 2.1.280
What's changed Added Claude Opus 5.5 ( claude-opus-5-5 ), now the default Opus model , 1M context, $4/$20 per Mtok with $0.20/Mtok cache reads Added mouse support to more lists in fullscreen mode: the wheel scrolls the /skills list, and a skill's state options in /plugin can be clicked Added CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH to change the...
Claude Code 2.1.271
What's changed Added fast mode in Claude Code Remote sessions (cloud and self-hosted runners): the host's fast-mode setting or /fast typed in the session applies where your organization allows it Added mouse support to the /config panel in fullscreen mode: the wheel scrolls the settings list, a click on a setting's value changes it, and the row under the...