Anthropic (Claude): Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
Service incident
claude.ai, Claude API (api.anthropic.com), Claude Code
Weekly briefing
Week 41 · 5 Oct – 11 Oct 2026 UTC · assess the changes, then plan the next dates.
All dated changes in this period
730 source records · 376 groupsKnown issuesAzure DevOps
Known issuesCloudflare3 source records
Service incident · 3 entries
- Cloudflare: Durable Objects Availability Issue in Eastern North America
Service incident
Containers, Durable Objects, R2 · lasted 321 min
- Cloudflare: Increase in Latency Across Multiple Locations
Service incident
Known issuesCommercial changes
New Security designation workloads
Partner announcement · Microsoft Partner Center announcements
Known issuesGitHub2 source records
Service incident · 2 entries
- GitHub: Disruption with some GitHub services
Service incident
Known issuesMicrosoft 365 admin center: Admins intermittently may be unable to access the Microsoft 365 admin center
Microsoft 365 admin center: Admins intermittently may be unable to access the Microsoft 365 admin center
Service incident
Admin center
Known issuesMicrosoft 365 admin center: Some admins may be unable to access the Microsoft 365 admin portal
Microsoft 365 admin center: Some admins may be unable to access the Microsoft 365 admin portal
Service incident
Admin center
Known issuesOpenAI2 source records
Service incident · 2 entries
- OpenAI: Admin Console Intermittently Inaccessible
Service incident
Updates and guidance.NET
UWP and WinUI 3 apps: UI testing with MSTest
Product news · Microsoft .NET Blog
Updates and guidanceAnthropic Claude
We've added capabilities.thinking.types.disabled to the Models API.
Product news · Claude Platform release notes
Updates and guidanceAzure5 source records
Azure update · 5 entries
- Announcing: Table discovery in OneLake Catalog search
Azure update · Azure Updates · Microsoft 365 Message Center Archive by Merill Fernando
Show the other 2 entries
- [In preview] Public Preview: IPv6 Support for Application Gateway WAF
Azure update · Azure Updates · Microsoft 365 Message Center Archive by Merill Fernando
Updates and guidanceIntune
Intune security baseline for Windows 11, version 26H2
Product news · Microsoft Intune what's new
Updates and guidanceJamf Pro
What does a good digital employee experience actually look like on Mac?
Product news · Jamf Blog
Updates and guidanceMicrosoft Fabric
Fabric Influencers Spotlight: September 2026
Product news · Microsoft Fabric Updates Blog
Updates and guidanceOpenAI3 source records
Product news · 3 entries
- Added an in-product flow for HIPAA compliance support in API Organization settings > General.
Product news · OpenAI API changelog
- Building advertising for the way people use AI
Product news · OpenAI News
- Our approach to EU text provenance rules
Product news · OpenAI News
Updates and guidanceWindows 365
All users and all devices targeting for Cloud PC Settings (Public Preview)
Product news · Windows 365 what's new
Message CenterMicrosoft 365 Apps
MC1488843: Microsoft Word for Android: Agent Mode
Message Center · Stay informed · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft 365 apps
Message CenterMicrosoft 365 Copilot
MC1479519: Agents and Skills in CIQ
Message Center · Plan for change · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Copilot (Microsoft 365)
Message CenterMicrosoft Entra
MC1488834: Microsoft Entra ID: Final reminder to replace MemberOf rule operator configurations by November 3, 2026
Message Center · Plan for change · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Entra
Message CenterOneDrive
MC1422063: (Updated) OneDrive for Business: Improved Windows Desktop sync error messages for max path length
Notice updated · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft OneDrive
Message CenterPlanner2 source records
Message Center · Plan for change · 2 entries
- MC1488844: Updated My Task experience in Planner
Message Center · Plan for change · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Planner
- MC1488845: Private tasks now stored in your private plan in Planner
Message Center · Plan for change · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Planner
Message CenterPower Platform
MC1488488: Microsoft Dataverse - Bulk generate prompt column values for existing records (backfill)
Message Center · Stay informed · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Dataverse
Message CenterPurview
MC1259828: Microsoft Purview: Credential scanning in Data Security Posture Agent
Notice updated · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Purview
Message CenterTeams4 source records
Notice updated · 4 entries
- MC1404321: (Updated) Microsoft Teams: Emoji shortcuts expand to iOS and Android
Notice updated · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams
- MC1446797: (Updated) Microsoft Teams: Modernized Gallery view in Teams Rooms on Android
Notice updated · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams
- MC1449174: Microsoft Teams: Microsoft Teams live chat retirement
Message Center action date · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Show the other 1 entries
- MC1488847: Microsoft Teams: Breakout room support for Teams Rooms on Android
Message Center · Stay informed · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams
Groups collect records about the same product or named security topic on one UTC date. Open a record for its source and history; grouping alone does not establish a shared cause or impact.