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 218 Anthropic releases · Updated
- Claude Release Notes aipreviewengineer ·
Claude edits drafts in place within its workspace
Claude can now edit drafts directly within its chat or Claude Cowork interface, allowing users to highlight text and specify changes. This feature streamlines the editing process by eliminating the need to switch applications or re-explain content in chat prompts. The functionality is available now and further details can be found in the "Work with artifacts" documentation.
feature - Claude Release Notes aipreviewengineer ·
Anthropic Enterprise: Model Entitlements Beta
Anthropic's Enterprise plans now offer a beta feature for admins to control user access to specific models and effort level settings. This enhancement allows for greater organizational oversight of AI model usage and configuration. The feature is currently in beta and is available to administrators on Enterprise plans.
feature announcement - Claude Platform Release Notes ai ·
Claude Platform Updates: New Models, Features, and Deprecations in July 2026
Anthropic has released Claude Sonnet 5, Claude Fable 5, and Claude Mythos 5, featuring expanded context windows and updated tokenizers, impacting prompt token counts. Several enhancements to Claude Managed Agents improve session event streaming, pagination, and configuration overrides. The platform also introduced new tool versions for code execution and web search, alongside API and SDK updates, while deprecating older Opus and Sonnet models and fast mode for certain versions.
feature patch deprecation - Anthropic News aigaengineer ·
Anthropic Fable 5 Model Access Restored After Export Control Lifted
Anthropic's Fable 5 and Mythos 5 models had their access restricted due to US export controls, which have now been lifted. Fable 5 will be globally available starting July 1st, with specific access terms for different plans and platforms. The company is also enhancing its safeguards and collaborating on an industry framework for AI model safety.
feature announcement - Claude Release Notes ai ·
Anthropic Launches Claude Sonnet 5
Anthropic has released Claude Sonnet 5, an improved version of their agentic Sonnet model. This update offers significant enhancements in reasoning, tool use, coding, and knowledge work compared to its predecessor, Sonnet 4.6. The new model is available now for users seeking more advanced AI capabilities.
feature announcement - Anthropic Python SDK Releases sdkaiengineermedia ·
Anthropic SDK for Python v0.115.0 Adds Agent and Managed Agent Features
Anthropic has released SDK for Python v0.115.0, introducing several new features for agents and managed agents. These enhancements include support for event delta streaming, agent overrides, reverse pagination, and credential injection scoping. The update also adds webhook events for agents and deployments, providing greater control and flexibility for developers integrating AI agents.
feature - Claude Platform Release Notes aigapreviewengineer ·
Claude Platform Updates: New Models, Rate Limits, and SDK Enhancements
Anthropic has released Claude Sonnet 5 and Claude Fable 5, introducing new pricing and a 1M token context window. Rate limits have been standardized across models, and several older models are retired. The release also includes SDK updates, new tool capabilities, and enhancements to managed agents, affecting developers and architects working with the Claude API.
feature deprecation patch - Claude Platform Release Notes aigadeprecationengineer ·
Claude Sonnet 5 Launched with 1M Token Context, New Tokenizer
Anthropic has launched Claude Sonnet 5, featuring a 1 million token context window and a new tokenizer that increases token count by approximately 30%. This release impacts users migrating from Sonnet 4.6 due to changes in adaptive thinking and the removal of manual extended thinking. Sonnet 5 is available at introductory pricing until August 31, 2026, with Priority Tier support not included.
feature deprecation patch - Claude Code Releases sdkaiengineer ·
Claude Code updates default model to Sonnet 5
Claude Code has updated its default model to Claude Sonnet 5 in version 2.1.197. This change introduces a native 1 million token context window and offers promotional pricing through August 31st. Users can update to access these improvements.
feature announcement - Anthropic News aiengineer ·
Anthropic Introduces Claude Sonnet 5
Anthropic has launched Claude Sonnet 5, a new iteration of their AI model family. This update aims to provide enhanced performance and capabilities for various AI applications. The model is now available for use, targeting developers and businesses seeking advanced AI solutions.
feature announcement - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic SDK Python v0.114.0 adds Sonnet 5 API support
Anthropic's Python SDK has been updated to version 0.114.0, introducing support for the Claude-Sonnet-5 model API. This release also fixes an issue with agent toolsets allowing absolute paths within the working directory. The update is available now for users of the Python SDK.
feature patch - Anthropic News aiengineerhealthcare ·
Anthropic Launches Claude Science AI Workbench for Researchers
Anthropic has released Claude Science, an AI workbench designed to accelerate scientific discovery by integrating commonly used research tools and packages. The workbench provides auditable artifacts, flexible compute access, and specialized agents for various scientific domains, aiming to streamline complex research workflows. It is now available in beta for Claude Pro, Max, Team, and Enterprise users, offering enhanced reproducibility and computational management. This release allows scientists to analyze literature, execute multi-step research, and refine figures and manuscripts within a unified environment.
feature announcement - Claude Code Releases sdkaiengineermedia ·
Claude Code v2.1.196: Organization defaults, better session management, and security
This release introduces organization-level default model settings for admins and improves session management with readable names and clickable attachments. Security is enhanced by preventing untrusted workspaces from auto-approving configurations. These updates benefit all users, especially administrators managing shared environments, by improving usability and security posture.
patch security - Claude Platform Release Notes aiengineer ·
Claude Platform Updates: New Models, Rate Limits, and Tooling
Anthropic has released Claude Fable 5 and Claude Mythos 5 with large context windows and adaptive thinking, alongside Claude Opus 4.8 as its most capable GA model. Rate limits have been harmonized across API tiers, and support for new code execution and web search tool versions has been added. These updates affect users of the Claude API, SDKs, and Console, particularly those leveraging advanced AI capabilities and seeking improved performance.
feature patch deprecation - Anthropic Python SDK Releases sdkai ·
Anthropic SDK Python v0.113.0 adds web fetch and tool support
The Anthropic SDK for Python has been updated to version 0.113.0, introducing support for the 2026-03-18 API version, including web fetching and tool usage capabilities. This release addresses a bug in async count_tokens and includes chore updates for token counting with user profiles and documentation. These enhancements are available to all users of the Python SDK.
feature patch - Claude Code Releases sdkai ·
Claude Code v2.1.195: Fixes for dictation, plugins, and background agents
This Claude Code update fixes several issues including incorrect hook matching, voice dictation problems on macOS and for non-spaced languages, and problems with external plugin installation and management. It also addresses bugs related to background agents and crashed task restarts, improving reliability for users on Linux and within the IDE's agent management interface. The release aims to provide a more stable and predictable experience for developers using Claude Code for coding assistance.
patch - Claude Platform Release Notes aideprecation ·
Claude Platform Updates: New Models, Rate Limits, and Tooling
Anthropic has released significant updates to its Claude Platform, including new models like Claude Fable 5 and Claude Opus 4.8 with larger context windows and enhanced capabilities. Rate limits have been raised across the API, and several tools have been updated with new features and versions. The updates also include deprecations and retirements of older models, alongside new SDK support and platform features for managed agents and AWS integration.
feature patch deprecation - Claude Platform Release Notes aigaengineer ·
Claude Platform Updates: New Models, Rate Limits, and Tooling
Anthropic has released several updates to the Claude Platform, including new models like Claude Fable 5 and Claude Opus 4.8, with enhanced capabilities such as larger context windows and improved tool support. Rate limits have been raised and consolidated across API tiers, benefiting most users. These changes affect developers using the Claude API, SDKs, and console, with some older models and features being deprecated.
feature patch deprecation announcement - Claude Release Notes aiengineer ·
Claude Tag for Slack Task Delegation Released
Team and Enterprise plans can now use Claude Tag within Slack conversations to delegate tasks. This feature allows users to assign work to Claude without interrupting their focus on other activities. Further details are available in a dedicated blog post announcing the launch.
feature announcement - Claude Code Releases sdkaiengineer ·
Claude Code v2.1.193: New settings, improved background agents
This release introduces a new `autoMode.classifyAllShell` setting to enhance security by classifying all shell commands. It also adds auto-mode denial reasons to transcripts and toasts, and an OpenTelemetry log event for model responses. The update includes several improvements to background agents, fixes for UI and background task issues, and enhanced plugin and MCP authentication.
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About Anthropic release tracking on ReleaseBytes
Anthropic ships Claude model releases, API updates and SDK versions on a rapid cadence. ReleaseBytes tracks the official Anthropic announcement channels and SDK changelogs, summarising each release and flagging model deprecations and breaking changes so teams building on Claude stay ahead of them.
Frequently asked questions
How often are Anthropic release notes updated on ReleaseBytes? ›
Continuously. ReleaseBytes monitors the official Anthropic release channels around the clock and publishes a plain-English summary of each announcement shortly after it lands.
What kinds of Anthropic changes does ReleaseBytes track? ›
New features, enhancements, bug fixes, security advisories, breaking changes, deprecations and end-of-life announcements. Every item is tagged by type so you can filter to just the changes that need action.
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Where does the Anthropic release data come from? ›
From the official sources: Anthropic news, Claude releases and SDK updates. Every item links back to the original vendor announcement.