Windows Hotpatch Updates

Hotpatch is a separate security-servicing program for eligible, enrolled devices. Hotpatch releases do not require an OS restart; baselines do. Other updates, prerequisites and device configuration can still require a restart. This history does not assess a device's eligibility or compliance.

Windows 11 Enterprise 24H2, 25H2 and 26H2 sources are tracked independently. Windows Server 2022 requires a supported Datacenter Azure Edition image; Server 2025 supports eligible Azure images and Azure Arc-connected Standard/Datacenter systems. See the official Windows client prerequisites and Windows Server prerequisites.

Supplemental component fixes are listed separately. Unknown dates, builds and restart requirements are not inferred. A calendar baseline is context from Microsoft's published schedule, not a substitute for the KB's installation prerequisites.

Published releases and baseline notes

168 entries across 5 official sources. Last successful refresh: . Automatic collection every 6 hours.

Reset

168 matching entries. Shared KBs remain distinct by product, version and build.

Product / versionKB / detailsRelease date BuildKind / OS restartCalendar baseline
Windows Server 2025 KB5120228
Details

KB5120228

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Hotpatch
No OS restart
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5123303
Details

KB5123303: Security Update (OS Build 20348.5440)

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented 20348.5440 Supplemental
Restart: not documented
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5074353
Details

KB5074353: Security Update for Windows PowerShell (OS Build 20348.4467)

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented 20348.4467 Supplemental
Restart: not documented
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5066359
Details

KB5066359—Security Update for Windows PowerShell (Hotpatch)

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Supplemental
Restart: not documented
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5073457
Details

KB5073457

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5082142
Details

KB5082142

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5094128
Details

KB5094128

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5099540
Details

KB5099540

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5120229
Details

KB5120229

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Hotpatch
No OS restart
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5049983
Details

KB5049983

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5055526
Details

KB5055526

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5062572
Details

KB5062572

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5063812
Details

KB5063812

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Hotpatch
No OS restart
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5034129
Details

KB5034129

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB50369809
Details

KB50369809

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5040437
Details

KB5040437

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5041160
Details

KB5041160

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5044281
Details

KB5044281

Microsoft release-history source

Some article details are unavailable. Open Microsoft's KB for the authoritative information.

 Not documented Not documented Baseline
Restart required
 Not documented
Microsoft calendars, including months without a documented KB

These are the source's published calendar labels, not proof that an update has been released. Unlinked months are not counted as published patches. Older transposed calendars without KB references are not converted into release records.

Product / versionPeriodKindKBSource
Windows 11 Enterprise 24H22026.12Hotpatch No KB documentedMicrosoft calendar
Windows 11 Enterprise 25H22026.12Hotpatch No KB documentedMicrosoft calendar
Windows Server 20252026.12Hotpatch No KB documentedMicrosoft calendar
Windows Server Datacenter Azure Edition 20222026.12Hotpatch No KB documentedMicrosoft calendar
Windows 11 Enterprise 24H22026.11Hotpatch No KB documentedMicrosoft calendar
Windows 11 Enterprise 25H22026.11Hotpatch No KB documentedMicrosoft calendar
Windows Server 20252026.11Hotpatch No KB documentedMicrosoft calendar
Windows Server Datacenter Azure Edition 20222026.11Hotpatch No KB documentedMicrosoft calendar
Windows 11 Enterprise 24H22026.10Baseline No KB documentedMicrosoft calendar
Windows 11 Enterprise 25H22026.10Baseline No KB documentedMicrosoft calendar
Windows 11 Enterprise 26H22026.10Baseline No KB documentedMicrosoft calendar
Windows Server 20252026.10Baseline No KB documentedMicrosoft calendar
Windows Server Datacenter Azure Edition 20222026.10Baseline No KB documentedMicrosoft calendar
Windows 11 Enterprise 24H22026.09Baseline KB5124008Microsoft calendar
Windows 11 Enterprise 25H22026.09Baseline KB5124008Microsoft calendar
Windows Server 20252026.09Baseline No KB documentedMicrosoft calendar
Windows Server Datacenter Azure Edition 20222026.09Baseline No KB documentedMicrosoft calendar
Windows 11 Enterprise 24H22026.08Hotpatch KB5120994Microsoft calendar
Windows 11 Enterprise 25H22026.08Hotpatch KB5120994Microsoft calendar
Windows Server 20252026.08Hotpatch KB5120228Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.08Hotpatch KB5120229Microsoft calendar
Windows 11 Enterprise 24H22026.07Baseline KB5101650Microsoft calendar
Windows 11 Enterprise 25H22026.07Baseline KB5101650Microsoft calendar
Windows Server 20252026.07Baseline KB5099536Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.07Baseline KB5099540Microsoft calendar
Windows 11 Enterprise 24H22026.06Baseline KB5094126Microsoft calendar
Windows 11 Enterprise 25H22026.06Baseline KB5094126Microsoft calendar
Windows Server 20252026.06Baseline KB5094125Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.06Baseline KB5094128Microsoft calendar
Windows 11 Enterprise 24H22026.05Hotpatch KB5089466Microsoft calendar
Windows 11 Enterprise 25H22026.05Hotpatch KB5089466Microsoft calendar
Windows Server 20252026.05Hotpatch KB5087423Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.05Hotpatch KB5087424Microsoft calendar
Windows 11 Enterprise 24H22026.04Baseline KB5083769Microsoft calendar
Windows 11 Enterprise 25H22026.04Baseline KB5083769Microsoft calendar
Windows Server 20252026.04Baseline KB5082063Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.04Baseline KB5082142Microsoft calendar
Windows 11 Enterprise 24H22026.03Hotpatch KB5079420Microsoft calendar
Windows 11 Enterprise 25H22026.03Hotpatch KB5079420Microsoft calendar
Windows Server 20252026.03Hotpatch KB5078736Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.03Hotpatch KB5078737Microsoft calendar
Windows 11 Enterprise 24H22026.02Hotpatch KB5077212Microsoft calendar
Windows 11 Enterprise 25H22026.02Hotpatch KB5077212Microsoft calendar
Windows Server 20252026.02Hotpatch KB5075942Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.02Hotpatch KB5075943Microsoft calendar
Windows 11 Enterprise 24H22026.01Baseline KB5074109Microsoft calendar
Windows 11 Enterprise 25H22026.01Baseline KB5074109Microsoft calendar
Windows Server 20252026.01Baseline KB5073379Microsoft calendar
Windows Server Datacenter Azure Edition 20222026.01Baseline KB5073457Microsoft calendar
Windows 11 Enterprise 24H22025.12Hotpatch KB5072014Microsoft calendar
Windows 11 Enterprise 25H22025.12Hotpatch KB5072014Microsoft calendar
Windows Server 20252025.12Hotpatch KB5072014Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.12Hotpatch KB5071413Microsoft calendar
Windows 11 Enterprise 24H22025.11Hotpatch KB5068966Microsoft calendar
Windows 11 Enterprise 25H22025.11Hotpatch KB5068966Microsoft calendar
Windows Server 20252025.11Hotpatch KB5068966Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.11Hotpatch KB5068840Microsoft calendar
Windows 11 Enterprise 24H22025.10Baseline KB5066835Microsoft calendar
Windows 11 Enterprise 25H22025.10Baseline KB5066835Microsoft calendar
Windows Server 20252025.10Baseline KB5066835Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.10Baseline KB5066782Microsoft calendar
Windows 11 Enterprise 24H22025.09Hotpatch KB5065474Microsoft calendar
Windows Server 20252025.09Hotpatch KB5065474Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.09Hotpatch KB5065306Microsoft calendar
Windows 11 Enterprise 24H22025.08Hotpatch KB5064010Microsoft calendar
Windows Server 20252025.08Hotpatch KB5064010Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.08Hotpatch KB5063812Microsoft calendar
Windows 11 Enterprise 24H22025.07Baseline KB5062553Microsoft calendar
Windows Server 20252025.07Baseline KB5062553Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.07Baseline KB5062572Microsoft calendar
Windows 11 Enterprise 24H22025.06Hotpatch KB5060841Microsoft calendar
Windows Server 20252025.06Hotpatch KB5060841Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.06Hotpatch KB5060525Microsoft calendar
Windows 11 Enterprise 24H22025.05Hotpatch KB5058497Microsoft calendar
Windows Server 20252025.05Hotpatch KB5058497Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.05Hotpatch KB5058500Microsoft calendar
Windows 11 Enterprise 24H22025.04Baseline KB5055523Microsoft calendar
Windows Server 20252025.04Baseline KB5055523Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.04Baseline KB5055526Microsoft calendar
Windows 11 Enterprise 24H22025.03Hotpatch KB5053636Microsoft calendar
Windows Server 20252025.03Hotpatch KB5053636Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.03Hotpatch KB5053638Microsoft calendar
Windows 11 Enterprise 24H22025.02Hotpatch KB5052105Microsoft calendar
Windows Server 20252025.02Hotpatch KB5052105Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.02Hotpatch KB5052106Microsoft calendar
Windows 11 Enterprise 24H22025.01Baseline KB5050009Microsoft calendar
Windows Server 20252025.01Baseline KB5050009Microsoft calendar
Windows Server Datacenter Azure Edition 20222025.01Baseline KB5049983Microsoft calendar
Windows 11 Enterprise 24H22024.12Hotpatch KB5048794Microsoft calendar
Windows Server 20252024.12Hotpatch KB5048794Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.12Hotpatch KB5048800Microsoft calendar
Windows 11 Enterprise 24H22024.11Hotpatch KB5046696Microsoft calendar
Windows Server 20252024.11Hotpatch KB5046696Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.11Hotpatch KB5046698Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.10Baseline KB5044281Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.09Hotpatch KB5042880Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.08Baseline KB5041160Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.07Baseline KB5040437Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.06Hotpatch KB5039330Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.05Hotpatch KB5037848Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.04Baseline KB50369809Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.03Hotpatch KB5035959Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.02Hotpatch KB5034860Microsoft calendar
Windows Server Datacenter Azure Edition 20222024.01Baseline KB5034129Microsoft calendar

Source coverage

Windows 11 Enterprise 24H2: 37 entries; 0 different-build rows and 0 unsafe links excluded.

Windows 11 Enterprise 25H2: 24 entries; 0 different-build rows and 0 unsafe links excluded.

Windows 11 Enterprise 26H2: 0 entries; 19 different-build rows and 0 unsafe links excluded. This source currently provides no verifiable release for this build family. Rows for other versions are not relabeled.

Windows Server 2025: 31 entries; 0 different-build rows and 0 unsafe links excluded.

Windows Server Datacenter Azure Edition 2022: 76 entries; 0 different-build rows and 0 unsafe links excluded.

Programmatic access: GET /api/WindowsVersions/hotpatch. See API access and authentication.