Copilot Gets GPT-6.1 Sol and Claude Sonnet 5.5, Two Subprocessor Switches DecideOn September 30, 2026, Microsoft kicked off the rollout of two new AI models in Microsoft Copilot with MC1483844: OpenAI’s GPT-6.1 Sol and Anthr…
Microsoft is introducing passkeys for B2B users in Entra ID. With the roadmap entry RM569432, published on October 1, 2026, internal guests and external users will soon be able to register a passkey issued by the resource te…
... Enforcement starting March 31, 2027! On September 30, 2026, Microsoft issued an action-required notification for Exchange Online PowerShell with MC1483974. The key point: Starting March 31, 2027, Microsoft will enforce s…
Entra Connect Sync: Starting today, synchronization stops under version 2.5.79.0Starting September 30, 2026, Microsoft Entra Connect Sync will stop synchronizing if your sync server is running a version below 2.5.79.0. Micro…
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... assemble into a PFX file. Problem: A certificate is delivered with separate files for the public key (CER, CRT) and the private key (KEY), but a combined file (PFX) is required.Task: Combine the separate files into a PFX…
Store M365 customer data in-country.On December 14, 2026, Microsoft will change the rules governing where your Microsoft 365 tenant data may reside. The trigger is a new setting called 'Store Microsoft 365 customer data in-c…
KB5002907 disables Office 2016 and 2019Since September 24 and 25, 2026, reports have been accumulating that the optional update KB5002907 is causing purchased full versions of Office 2016 and Office 2019 to lose their licens…
At the end of August, CERT-Bund published a figure summarizing the patch status of German mail infrastructure: Around 85 percent of on-premises Exchange servers in Germany are vulnerable to CVE-2026-62911.Microsoft closed th…
The yellow warning on the Conditional Access overview page doesn’t specify a number. It simply states that your policies protect more users than your licenses cover—and leaves you to deal with it. Anyone who then orders from…
What you need to decide by August 31!Starting October 1, 2026, Microsoft will begin disabling Exchange Web Services (EWS) in Exchange Online on a per-tenant basis. All tenants that have not taken action by then will be affec…
