https://cwork101.com/changes Everything that changed in the Claude ecosystem this week — new models, renamed features, availability shifts and deprecation notices. en Sat, 22 Aug 2026 02:26:47 GMT https://cwork101.com/learn/anthropic-academy learn/anthropic-academy@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn anthropic.com/learn permanently redirects to academy.claude.com. https://cwork101.com/learn/anthropic-academy learn/anthropic-academy@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Corrected the catalogue from 3 courses to 22. An earlier version of this page counted only what the Academy front page surfaces, which is a small subset of /courses. https://cwork101.com/learn/claude-101 learn/claude-101@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Recorded from the Academy course catalogue. https://cwork101.com/learn/claude-code-101 learn/claude-code-101@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Recorded from the Academy course catalogue. https://cwork101.com/learn/introduction-to-claude-cowork learn/introduction-to-claude-cowork@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Recorded from the Academy course catalogue. https://cwork101.com/learn/claude-platform-101 learn/claude-platform-101@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Recorded from the Academy course catalogue. https://cwork101.com/learn/introduction-to-mcp learn/introduction-to-mcp@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Recorded from the Academy course catalogue. https://cwork101.com/learn/building-with-the-claude-api learn/building-with-the-claude-api@2026-08-21 Fri, 21 Aug 2026 12:00:00 GMT learn Recorded from the Academy course catalogue. https://cwork101.com/models/claude-sonnet-5 models/claude-sonnet-5@2026-08-10 Mon, 10 Aug 2026 12:00:00 GMT models The introductory $2/$10 rate became the standard price. The increase to $3/$15 previously scheduled for 1 September 2026 was cancelled. https://cwork101.com/models/model-deprecations models/model-deprecations@2026-08-05 Wed, 05 Aug 2026 12:00:00 GMT models Claude Opus 4.1 retired on the Claude API. Still available on Amazon Bedrock and Google Cloud. https://cwork101.com/models/retired-models models/retired-models@2026-08-05 Wed, 05 Aug 2026 12:00:00 GMT models Claude Opus 4.1 retired on the Claude API. https://cwork101.com/models/claude-opus-5 models/claude-opus-5@2026-07-24 Fri, 24 Jul 2026 12:00:00 GMT models Claude Opus 5 released, with a 1M-token context window and a May 2026 reliable knowledge cutoff. https://cwork101.com/models/claude-sonnet-5 models/claude-sonnet-5@2026-06-30 Tue, 30 Jun 2026 12:00:00 GMT models Claude Sonnet 5 released with a 1M-token context window and introductory pricing of $2/$10 per million tokens. https://cwork101.com/products/claude-science products/claude-science@2026-06-30 Tue, 30 Jun 2026 12:00:00 GMT products Claude Science released in beta on macOS and Linux for Pro, Max, Team and Enterprise. https://cwork101.com/models/model-deprecations models/model-deprecations@2026-06-15 Mon, 15 Jun 2026 12:00:00 GMT models Claude Sonnet 4 and Claude Opus 4 retired on the Claude API. https://cwork101.com/models/retired-models models/retired-models@2026-06-15 Mon, 15 Jun 2026 12:00:00 GMT models Claude Sonnet 4 and Claude Opus 4 retired on the Claude API. https://cwork101.com/models/claude-fable-5 models/claude-fable-5@2026-06-09 Tue, 09 Jun 2026 12:00:00 GMT models Claude Fable 5 generally available on the Claude API, Amazon Bedrock, Claude Platform on AWS, Google Cloud and Microsoft Foundry. https://cwork101.com/models/claude-mythos-5 models/claude-mythos-5@2026-06-09 Tue, 09 Jun 2026 12:00:00 GMT models Claude Mythos 5 offered in limited availability to approved Project Glasswing customers. https://cwork101.com/models/claude-mythos-5 models/claude-mythos-5@2026-06-09 Tue, 09 Jun 2026 12:00:00 GMT models claude-mythos-preview deprecated; migration path is claude-mythos-5. https://cwork101.com/models/claude-mythos-preview models/claude-mythos-preview@2026-06-09 Tue, 09 Jun 2026 12:00:00 GMT models Deprecated in favour of claude-mythos-5, with a published migration guide. https://cwork101.com/models/model-deprecations models/model-deprecations@2026-04-20 Mon, 20 Apr 2026 12:00:00 GMT models Claude Haiku 3 retired. https://cwork101.com/models/model-deprecations models/model-deprecations@2026-02-19 Thu, 19 Feb 2026 12:00:00 GMT models Claude Sonnet 3.7 and Claude Haiku 3.5 retired. https://cwork101.com/agents/agent-skills agents/agent-skills@2025-12-18 Thu, 18 Dec 2025 12:00:00 GMT agents Announcement updated. https://cwork101.com/agents/agent-skills agents/agent-skills@2025-10-16 Thu, 16 Oct 2025 12:00:00 GMT agents Agent Skills announced, with a skill-creator tool and the anthropic/skills marketplace. https://cwork101.com/models/claude-haiku-4-5 models/claude-haiku-4-5@2025-10-15 Wed, 15 Oct 2025 12:00:00 GMT models Claude Haiku 4.5 released at one-third the cost and more than twice the speed of Claude Sonnet 4. https://cwork101.com/agents/mcp agents/mcp@2024-11-25 Mon, 25 Nov 2024 12:00:00 GMT agents MCP released as an open standard with reference servers and SDKs.