- Dec 19, 2025
- Parsed from source:Dec 19, 2025
- Detected by Releasebot:Sep 17, 2025
- Modified by Releasebot:Dec 20, 2025
December 19, 2025
We announced the deprecation of the Claude Haiku 3.5 model. Read more in our documentation.
Original source Report a problem - Dec 4, 2025
- Parsed from source:Dec 4, 2025
- Detected by Releasebot:Dec 5, 2025
December 4, 2025
- Nov 24, 2025
- Parsed from source:Nov 24, 2025
- Detected by Releasebot:Nov 25, 2025
November 24, 2025
Claude Opus 4.5 debuts with stronger intelligence and practical performance for complex tasks at a friendlier price. Public beta brings programmatic tool calling and on‑demand tool search to speed up multi-tool workflows. A new effort parameter and SDK client-side compaction auto‑manage context for faster responses.
Release notes
- We've launched Claude Opus 4.5, our most intelligent model combining maximum capability with practical performance. Ideal for complex specialized tasks, professional software engineering, and advanced agents. Features step-change improvements in vision, coding, and computer use at a more accessible price point than previous Opus models. Learn more in our Models & Pricing documentation.
- We've launched programmatic tool calling in public beta, allowing Claude to call tools from within code execution to reduce latency and token usage in multi-tool workflows.
- We've launched the tool search tool in public beta, enabling Claude to dynamically discover and load tools on-demand from large tool catalogs.
- We've launched the effort parameter in public beta for Claude Opus 4.5, allowing you to control token usage by trading off between response thoroughness and efficiency.
- We've added client-side compaction to our Python and TypeScript SDKs, automatically managing conversation context through summarization when using tool_runner.
- Nov 21, 2025
- Parsed from source:Nov 21, 2025
- Detected by Releasebot:Dec 9, 2025
November 21, 2025
Search result content blocks are now generally available on Amazon Bedrock. Learn more in our search results documentation.
Original source Report a problem - Nov 19, 2025
- Parsed from source:Nov 19, 2025
- Detected by Releasebot:Nov 20, 2025
November 19, 2025
We've launched a new documentation platform at platform.claude.com/docs. Our documentation now lives side by side with the Claude Console, providing a unified developer experience. The previous docs site at docs.claude.com will redirect to the new location.
Original source Report a problem - Nov 18, 2025
- Parsed from source:Nov 18, 2025
- Detected by Releasebot:Nov 19, 2025
November 18, 2025
We’ve launched Claude in Microsoft Foundry, bringing Claude models to Azure customers with Azure billing and OAuth authentication. Access the full Messages API including extended thinking, prompt caching (5-minute and 1-hour), PDF support, Files API, Agent Skills, and tool use. Learn more in our Microsoft Foundry documentation.
Original source Report a problem - Nov 14, 2025
- Parsed from source:Nov 14, 2025
- Detected by Releasebot:Nov 15, 2025
November 14, 2025
Structured outputs in public beta
We’ve launched structured outputs in public beta, providing guaranteed schema conformance for Claude’s responses. Use JSON outputs for structured data responses or strict tool use for validated tool inputs. Available for Claude Sonnet 4.5 and Claude Opus 4.1. To enable, use the beta header
Original source Report a problemstructured-outputs-2025-11-13. - Oct 28, 2025
- Parsed from source:Oct 28, 2025
- Detected by Releasebot:Oct 29, 2025
October 28, 2025
We announced the deprecation of the Claude Sonnet 3.7 model. Read more in our documentation.
We’ve retired the Claude Sonnet 3.5 models. All requests to these models will now return an error.
We’ve expanded context editing with thinking block clearing (clear_thinking_20251015), enabling automatic management of thinking blocks. Learn more in our context editing documentation.
Original source Report a problem - Oct 16, 2025
- Parsed from source:Oct 16, 2025
- Detected by Releasebot:Oct 17, 2025
October 16, 2025
Anthropic launches Agent Skills in beta, letting Claude load dynamic, organized task packs. Includes pre-built skills for PowerPoint, Excel, Word, and PDF, plus Custom Skills via the Skills API. Requires the code execution tool; learn more in the docs.
Agent Skills launch
We’ve launched Agent Skills (skills-2025-10-02 beta), a new way to extend Claude’s capabilities. Skills are organized folders of instructions, scripts, and resources that Claude loads dynamically to perform specialized tasks. The initial release includes:
- Anthropic-managed Skills: Pre-built Skills for working with PowerPoint (.pptx), Excel (.xlsx), Word (.docx), and PDF files
- Custom Skills: Upload your own Skills via the Skills API (/v1/skills endpoints) to package domain expertise and organizational workflows
- Skills require the code execution tool to be enabled
- Learn more in our Agent Skills documentation and API reference
- Oct 15, 2025
- Parsed from source:Oct 15, 2025
- Detected by Releasebot:Oct 25, 2025
October 15, 2025
We’ve launched
Claude Haiku 4.5, our fastest and most intelligent Haiku model with near-frontier performance. Ideal for real-time applications, high-volume processing, and cost-sensitive deployments requiring strong reasoning. Learn more in our Models & Pricing documentation.
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