Releasesby GlyphClaude Duet research preview for Pro and Max plans
Anthropic opened a research preview of Claude Duet for users on Pro and Max plans. Claude Duet is a new app where Claude operates as a proactive agent.
Claude apps Release notes from Anthropic
18 releases · 0 this month
Claude Opus 5.5 launched, first model in the Claude 5.5 family
Anthropic launched Claude Opus 5.5, the first model in the Claude 5.5 family. It performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5.
Create designs, decks, and docs in any conversation
Users can now request designs, presentations, and documents within any conversation, including Claude Code and the Artifacts tab. These features are available on all plans, with enterprise-specific beta controls.
Launching Salesforce in Claude (beta)
A new Salesforce plugin allows users to manage accounts, opportunities, and pipelines directly within Claude using 37 pre-built sales skills. It is available in beta on all paid plans for approved organizations.
Smart reports (beta) on Claude Enterprise analyze team usage and costs
Smart reports analyze how a team uses Claude and report on the work done, what it costs, where sessions hit friction, and which repeated patterns are worth packaging as shared skills. Available in beta on Claude Enterprise plans.
Claude Fable 5.1 and Claude Mythos 5.1 launched
Anthropic launched Claude Fable 5.1 and Claude Mythos 5.1, described as its most advanced models for coding and knowledge work.
Memory in Claude Cowork, editable memory topics, and sensitive topics setting
Memory now works across chat and Cowork in the cloud, with remembered items listed as editable Topics under Settings > Memory. Sensitive topics such as health stay out of memory unless the user turns on Include sensitive topics in memory.
Skill and plugin security scanning (beta) for Enterprise plans
Enterprise plans can turn on scanning that automatically checks third-party skills and plugins for malicious content when someone uploads or edits them.
Claude Opus 5 launched
Anthropic launched Claude Opus 5, which it says comes close to the frontier intelligence of Claude Fable 5 at half the price.
Memory reworked into individual categorized entries
Memory on Claude now works as a set of individual, categorized entries that Claude reads and updates during conversations, replacing the previous daily memory summary.
Monthly recap in Settings > Reflect (beta), plus break reminders and quiet hours
A monthly recap at Settings > Reflect shows topics, most active day, peak hour, and observations; it is in beta on Free, Pro, and Max plans on web and Desktop. Settings > Time and focus adds optional break reminders and quiet hours.
Write tools for the Microsoft 365 connector (email, calendar, OneDrive, SharePoint)
With write tools enabled, Claude can draft, send, and organize email, manage calendar events, update mailbox settings, and create and update files in OneDrive and SharePoint. Teams remains read-only and admin consent is required.
Model entitlements for Enterprise plans (beta)
Admins on Enterprise plans can now control which models their users can access and which effort level settings they can use.
Claude Sonnet 5 launched
Anthropic launched Claude Sonnet 5, with improvements over Sonnet 4.6 in reasoning, tool use, coding, and knowledge work.
About and activity
Claude on web, desktop and mobile.
Other Anthropic products: Claude Agent SDK, Claude Code, Claude Platform
Releases per month
1Jun
7Jul
2Aug
7Sep
1Oct
Official release-notes pages 6
| Release-notes page | Site | Feed |
|---|---|---|
| Claude apps release notes support.claude.com | support.claude.com | None |
| Claude Agent SDK (Python) releases github.com | github.com | RSS |
| Claude Agent SDK (TS) releases github.com | github.com | RSS |
| Python SDK releases github.com | github.com | RSS |
| System prompts release notes platform.claude.com | platform.claude.com | None |
| TypeScript SDK releases github.com | github.com | RSS |