crowdsourced regression feed
for sysadmins.

what the latest Windows / M365 / Intune updates broke this week. classified from r/sysadmin, r/msp, MS release health, Bleeping Computer. every claim links to its source.

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active regressions - last 7 days

  • [BREAKS-PROD]
    Windows Update

    Windows Update may fail in restricted network environments after installing January 2026 optional non-security preview updates.

    9 reports · 6 admins · last seen 5/19/2026 · sources →

  • [BREAKS-PROD]
    Outlook

    Conditional Access policy to block OWA, as per Microsoft documentation, also breaks critical admin centers, Office web apps, and Teams web, making it unusable.

    1 report · 1 admin · last seen 5/15/2026 · sources →

  • [WORKAROUND]
    Windows UpdateKB5089549

    May 2026 security update (KB5089549) fails to install on Windows 11 24H2 with error 0x800f0922 due to insufficient free space on EFI System Partition (ESP).

    4 reports · 3 admins · last seen 5/15/2026 · sources →

  • [WORKAROUND]
    Windows UpdateKB5036896, KB5036899

    April 2025 Windows Updates (KB5036896, KB5036899) break Mitel Connect services (HQ/DVS) preventing them from starting; requires uninstalling KBs to resolve. Mitel defect MiVC-6310.

    1 report · 1 admin · last seen 5/15/2026 · sources →

  • [BREAKS-PROD]
    Intune

    Autopilot enrollment fails with 0x800705b4 for devices using existing WDAC/App Control for Business V1 policies set to Constrained Language Mode (CSL), blocking the Intune enrollment agent.

    1 report · 1 admin · last seen 5/14/2026 · sources →

  • [BREAKS-PROD]
    Other

    Some Windows 11 systems boot into BitLocker recovery after installing April 2026 security updates, blocking access.

    1 report · 1 admin · last seen 5/13/2026 · sources →

json api - pipe regressions to your stack

GET /api/regressions.json
// no key, no signup. cors open. cached 5 min.
// filter by ?severity=breaks-prod&since=7d

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trending news - community + feeds

// sources r/sysadmin · r/msp · r/Intune · r/ActiveDirectory · r/exchangeserver · r/AZURE · MS release health · Bleeping Computer

every regression links to its source posts. not affiliated with microsoft.

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