Anthropic, Friday, September 25th, 2026
Build Plugins for Claude
Anthropic opened a directory submission portal letting developers publish and track plugins for the Claude ecosystem.
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Vol 342 · Issue 4
Anthropic — Archive · Vol 342 Issue 4
6 articles that week
Anthropic, Thursday, September 24th, 2026
Coding Sessions Are Longer and Use More Context. Claude Opus 5.5 Is Built With That in Mind.
Anthropic detailed how Claude Opus 5.5 cuts coding costs about 40% through cheaper caching and fewer turns per task.
more → Anthropic, Thursday, September 24th, 2026
Claude Tag Now Supports Personal Connectors in Channels
Claude Tag in Slack can now pull from each user's own personal connectors, like Google Drive or CRM, inside shared channels.
more → Anthropic, Wednesday, September 23rd, 2026
How to Prepare for AI-Driven Code Modernization Projects
Anthropic outlined a six-step framework for planning large-scale, AI-driven code modernization in critical systems.
more → Anthropic, Wednesday, September 23rd, 2026
Claude Marketplace: One Place to Discover Plugins, Agents, and Services From Our Partners
Anthropic launched Claude Marketplace, a hub for over 2,000 connectors, plugins, and partner-built agents and services.
more → Anthropic, Tuesday, September 22nd, 2026
Introducing Claude Opus 5.5
Anthropic launched Claude Opus 5.5, matching Claude Fable 5.1 performance on agentic coding while using 40% less compute.
more →