Anthropic releases
Anthropic news, Claude releases and SDK updates. New features, breaking changes, security advisories and deprecations - each summarised in plain English and updated continuously.
Tracking 125 Anthropic releases · Updated
- Claude Code Releases sdkaideprecationengineer ·
Claude Code v2.1.183: Enhanced Safety and UX Improvements
This release of Claude Code includes significant safety enhancements, particularly around destructive Git and infrastructure commands, and improves the user experience with clearer model warnings and streamlined configuration. It addresses several bugs impacting subagent performance, terminal interaction, and task handling. These updates are primarily for developers and engineers interacting with Claude Code for coding and infrastructure tasks.
patch deprecation - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic SDK Python adds refusal fallback middleware tagging
Anthropic's Python SDK has been updated to version 0.111.0, introducing a new feature that tags refusal-fallback middleware requests. This change helps developers better understand and manage how the SDK handles situations where model responses are refused, potentially improving error handling and debugging for applications relying on the SDK. The update is available now for users of the Anthropic Python SDK.
feature - Claude Code Releases sdkaipreviewengineermediaenergy ·
Claude Code v2.1.181: New config syntax, macOS fixes, improved UI
This patch for Claude Code introduces a new in-prompt configuration syntax and enhances user experience with improved streaming and auto-retry mechanisms. It also addresses several critical bugs, particularly on macOS, related to Apple Events and startup performance. Users interacting with Claude Code will benefit from these stability and usability improvements, with no specific version prerequisites.
patch - Claude Code Releases sdkaiengineer ·
Claude Code v2.1.179: Fixes for connection drops, scrolling, and UI issues
Claude Code version 2.1.179 addresses several issues, including preserving partial responses during mid-stream connection drops, restoring mouse-wheel scrolling in specific environments, and resolving sandbox errors. These fixes aim to improve stability and user experience for developers using Claude Code. The update is available as a patch release.
patch - Claude Code Releases sdkaiengineer ·
Claude Code v2.1.178: Enhanced permissions, skills, and agent handling
This patch for Claude Code v2.1.178 introduces new syntax for permission rules, enabling finer control over tool usage by specifying parameters. It also improves how nested skills and directories are handled, ensuring proper loading and resolution of potential name conflicts. These changes benefit developers using Claude Code for complex projects, particularly those involving custom tools and nested configurations, with fixes also addressing agent stability and authentication issues.
patch - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic SDK Python v0.109.2 removes retired models
Anthropic's Python SDK has been updated to version 0.109.2, removing retired models from both the API and the SDK itself. This change is a routine maintenance update aimed at cleaning up the available model list. It affects developers using the SDK who may have previously interacted with these now-unavailable models.
patch - Claude Code Releases sdkaiengineer ·
Claude Code v2.1.176: Improved credential caching, session features, and bug fixes
Claude Code version 2.1.176 introduces several enhancements, including session titles in the conversation's language and improved AWS Bedrock credential caching for longer validity. It also fixes numerous bugs affecting model selection, auto mode fallbacks, hook conditions, sandbox operations, and remote control functionality. These updates benefit developers and organizations using Claude Code by improving stability, usability, and security, particularly for those with specific model allowlists or complex session management needs.
patch feature - Claude Code Releases sdkaipreviewengineer ·
Claude Code v2.1.174: Scroll acceleration, model picker, and attribution fixes
This patch for Claude Code v2.1.174 addresses several issues including the '/model' picker display, usage attribution for enterprise accounts, and background session environment inheritance. It also introduces a new setting to disable mouse-wheel scroll acceleration in fullscreen mode. These fixes are available immediately for users of Claude Code.
patch - Anthropic News aiengineerfinance ·
Anthropic and TCS Partner to Bring Claude AI to Regulated Industries
Anthropic and Tata Consultancy Services (TCS) are partnering to bring Claude AI to regulated industries like finance and healthcare. TCS will deploy Claude internally to 50,000 employees and build Claude-powered products for clients, aiming to enhance accuracy and compliance. This collaboration will initially focus on industry-specific offerings such as claims processing and lending advisory, with work already underway in areas like customer experience improvement and software engineering productivity.
announcement feature - Claude Code Releases sdkaiengineer ·
Claude-Code v2.1.173: Fable 5 model names normalized, Windows startup warning fixed
Claude-Code v2.1.173 resolves an issue where Fable 5 model names were not normalized due to a `[1m]` suffix, which is now automatically stripped. Additionally, a spurious "sandbox dependencies missing" warning on Windows when the sandbox is enabled has been fixed. These changes primarily affect users of the Fable 5 model and Windows users with sandbox enabled.
patch - Claude Platform Release Notes aipreviewengineer ·
Claude Platform Updates: Code Execution and Web Tools Enhanced
Anthropic has updated its code execution, web search, and web fetch tools on the Claude platform. The code execution tool now explicitly states a 90-second time limit to better manage cell execution, while the web tools have added a response inclusion parameter to streamline agentic workflows. These updates aim to improve the predictability and efficiency of Claude's interactions with external tools for developers.
feature - Anthropic News aiengineer ·
Anthropic and DXC Technology form global alliance to integrate Claude
Anthropic is partnering with DXC Technology to integrate its Claude AI model into systems used by major banks, airlines, and other regulated industries. DXC will train thousands of engineers to deploy Claude within customer environments, leveraging the AI for modernization, cybersecurity, and application services. This alliance aims to bring Claude's capabilities to mission-critical systems, with DXC having already integrated Claude into its own operations and AI-native orchestration platform, DXC OASIS.
announcement feature - Anthropic News aiengineer ·
Anthropic Launches Claude Corps AI Fellowship Program
Anthropic is launching Claude Corps, a national fellowship program that will train 1,000 early-career individuals in AI skills and place them at nonprofits for a year. This initiative aims to extend the benefits of AI to underserved communities and provide fellows with valuable career skills, backed by an initial $150 million investment. The program partners with CodePath for fellowship management and Social Finance for evaluation, and will support 400 nonprofits over the next year.
announcement feature - Claude Code Releases sdkaiengineermedia ·
Claude Code v2.1.172: Sub-agents, Bedrock region, and numerous fixes
This patch for Claude Code introduces a significant enhancement allowing sub-agents to spawn their own sub-agents up to five levels deep, expanding agent capabilities. It also improves Amazon Bedrock integration by respecting AWS region configuration and includes fixes for session management, tool usage, and UI rendering. These changes benefit developers and architects using Claude Code for complex agent-based workflows, particularly those integrating with AWS services or encountering specific tool/UI bugs.
patch feature - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic SDK for Python v0.109.1 fixes API refusal category
Anthropic's Python SDK has been updated to version 0.109.1, introducing a bug fix for its API. This update adds the 'frontier_llm' refusal category, providing clearer information on specific API rejection reasons. This change is relevant for developers using the SDK to interact with Anthropic's language models.
patch - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic Python SDK v0.109.0 adds Managed Agents API support
Anthropic's Python SDK has been updated to version 0.109.0, introducing support for Managed Agents deployments. This feature allows developers to leverage advanced agent capabilities within their applications. The update also includes support for environment variable credentials, simplifying authentication for users. This release is now available for all users of the Python SDK.
feature - Claude Code Releases sdkaigaengineer ·
Anthropic Claude Code v2.1.170: Fable 5, Session Fixes
Anthropic has released Claude Code version 2.1.170, introducing the new Mythos-class model Claude Fable 5, now safe for general use and exceeding previous model capabilities. This update also resolves an issue where sessions and transcripts were not saved or retrievable via `--resume` when launched from specific terminal environments. This patch is available now for all users.
feature patch - Claude Platform Release Notes aipreviewengineer ·
Anthropic Launches Claude Fable 5 and Mythos 5 with 1M Token Context
Anthropic has released Claude Fable 5, their most capable widely available model, and Claude Mythos 5 for Project Glasswing participants. Both models feature a 1 million token context window and enhanced adaptive thinking capabilities. These updates impact users interacting with the Claude API, particularly concerning tokenizer changes, safety classifier responses, and data retention policies for Fable 5.
feature announcement - Claude Code Releases sdkaiengineerfinance ·
Claude Code v2.1.169: Troubleshooting, Directory Navigation, and UI Fixes
This update to Claude Code introduces a `--safe-mode` flag for troubleshooting and a `/cd` command for changing directories mid-session without disrupting the prompt cache. It also includes numerous bug fixes addressing issues with UI responsiveness, enterprise policies, and agent management across platforms. These changes benefit developers and architects troubleshooting complex setups or working with large codebases, offering a more stable and efficient experience.
patch feature - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic SDK Python v0.107.1 fixes API key header issue
This release of the Anthropic SDK for Python, version 0.107.1, addresses a bug related to API key authentication. Specifically, it ensures the 'x-api-key' header is correctly sent when using API key authentication with Foundry. This fix is important for users experiencing authentication failures due to the missing header.
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