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

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

Reset

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

Product / versionKB / detailsRelease date BuildKind / OS restartCalendar baseline
Windows Server Datacenter Azure Edition 2022 Baseline note
Details

January 13, 2026—Baseline

Microsoft release-history source

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

 2026-01-13 Not documented Baseline
Restart required
 Not documented
Windows 11 Enterprise 24H2 KB5072014
Details

December 9, 2025—Hotpatch KB5072014 (OS Builds 26200.7392 and 26100.7392)

Microsoft release-history source

 2025-12-09 26100.7392 Hotpatch
No OS restart
 KB5066835
Windows 11 Enterprise 25H2 KB5072014
Details

December 9, 2025—Hotpatch KB5072014 (OS Builds 26200.7392 and 26100.7392)

Microsoft release-history source

 2025-12-09 26200.7392 Hotpatch
No OS restart
 KB5066835
Windows Server 2025 KB5072014
Details

December 9, 2025—Hotpatch KB5072014 (OS Build 26100.7392)

Microsoft release-history source

 2025-12-09 26100.7392 Hotpatch
No OS restart
 KB5066835
Windows Server Datacenter Azure Edition 2022 KB5071413
Details

December 9, 2025—Hotpatch KB5071413 (OS Build 20348.4467)

Microsoft release-history source

 2025-12-09 20348.4467 Hotpatch
No OS restart
 KB5066782
Windows 11 Enterprise 25H2 KB5072753
Details

November 20, 2025—Hotpatch KB5072753 (OS Build 26200.7093) Out-of-band

Microsoft release-history source

 2025-11-20 26200.7093 Hotpatch · Out-of-band
No OS restart
 KB5066835
Windows 11 Enterprise 24H2 KB5068966
Details

November 11, 2025—Hotpatch KB5068966 (OS Builds 26200.7092 and 26100.7092)

Microsoft release-history source

 2025-11-11 26100.7092 Hotpatch
No OS restart
 KB5066835
Windows 11 Enterprise 25H2 KB5068966
Details

November 11, 2025—Hotpatch KB5068966 (OS Builds 26200.7092 and 26100.7092)

Microsoft release-history source

 2025-11-11 26200.7092 Hotpatch
No OS restart
 KB5066835
Windows Server 2025 KB5068966
Details

November 11, 2025—Hotpatch KB5068966 (OS Build 26100.7092)

Microsoft release-history source

 2025-11-11 26100.7092 Hotpatch
No OS restart
 KB5066835
Windows Server Datacenter Azure Edition 2022 KB5068840
Details

November 11, 2025—Hotpatch KB5068840 (OS Build 20348.4346)

Microsoft release-history source

 2025-11-11 20348.4346 Hotpatch
No OS restart
 KB5066782
Windows Server 2025 KB5070893
Details

October 24, 2025—KB5070893 (OS Build 26100.6905) Security Update for Windows Server Update Services

Microsoft release-history source

 2025-10-24 26100.6905 Supplemental
Restart: not documented
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5070892
Details

October 24, 2025—KB5070892 (OS Build 20348.4297) Security Update for Windows Server Update Services

Microsoft release-history source

 2025-10-24 20348.4297 Supplemental
Restart: not documented
 Not documented
Windows 11 Enterprise 24H2 KB5066835
Details

October 14, 2025—Baseline

Microsoft release-history source

 2025-10-14 26100.6899 Baseline
Restart required
 Not documented
Windows 11 Enterprise 25H2 KB5066835
Details

October 14, 2025—Baseline

Microsoft release-history source

 2025-10-14 26200.6899 Baseline
Restart required
 Not documented
Windows Server 2025 KB5066835
Details

October 14, 2025—Baseline

Microsoft release-history source

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

 2025-10-14 Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5066782
Details

October 14, 2025—Baseline

Microsoft release-history source

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

 2025-10-14 Not documented Baseline
Restart required
 Not documented
Windows 11 Enterprise 24H2 KB5065474
Details

September 9, 2025—Hotpatch KB5065474 (OS Build 26100.6508)

Microsoft release-history source

 2025-09-09 26100.6508 Hotpatch
No OS restart
 KB5062553
Windows Server 2025 KB5065474
Details

September 9, 2025—Hotpatch KB5065474 (OS Build 26100.6508)

Microsoft release-history source

 2025-09-09 26100.6508 Hotpatch
No OS restart
 KB5062553
Windows Server Datacenter Azure Edition 2022 KB5065306
Details

September 9, 2025—Hotpatch KB5065306 (OS Build 20348.4106)

Microsoft release-history source

 2025-09-09 20348.4106 Hotpatch
No OS restart
 KB5062572
Windows 11 Enterprise 24H2 KB5064010
Details

August 12, 2025—Hotpatch KB5064010 (OS Build 26100.4851)

Microsoft release-history source

 2025-08-12 26100.4851 Hotpatch
No OS restart
 KB5062553
Windows Server 2025 KB5064010
Details

August 12, 2025—Hotpatch KB5064010 (OS Build 26100.4851)

Microsoft release-history source

 2025-08-12 26100.4851 Hotpatch
No OS restart
 KB5062553
Windows Server Datacenter Azure Edition 2022 KB5063812
Details

August 12, 2025—Hotpatch KB5063812 (OS Build 20348.3989)

Microsoft release-history source

 2025-08-12 20348.3989 Hotpatch
No OS restart
 KB5062572
Windows 11 Enterprise 24H2 KB5062553
Details

July 8, 2025—Baseline

Microsoft release-history source

 2025-07-08 26100.4652 Baseline
Restart required
 Not documented
Windows Server 2025 KB5062553
Details

July 8, 2025—Baseline

Microsoft release-history source

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

 2025-07-08 Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 Baseline note
Details

July 8, 2025—Baseline

Microsoft release-history source

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

 2025-07-08 Not documented Baseline
Restart required
 Not documented
Windows 11 Enterprise 24H2 KB5060841
Details

June 10, 2025—Hotpatch KB5060841 (OS Build 26100.4270)

Microsoft release-history source

 2025-06-10 26100.4270 Hotpatch
No OS restart
 KB5055523
Windows Server 2025 KB5060841
Details

June 10, 2025—Hotpatch KB5060841 (OS Build 26100.4270)

Microsoft release-history source

 2025-06-10 26100.4270 Hotpatch
No OS restart
 KB5055523
Windows Server Datacenter Azure Edition 2022 KB5060525
Details

June 10, 2025—Hotpatch KB5060525 (OS Build 20348.3745)

Microsoft release-history source

 2025-06-10 20348.3745 Hotpatch
No OS restart
 KB5055526
Windows 11 Enterprise 24H2 KB5061258
Details

May 16, 2025—Hotpatch KB5061258 (OS Build 26100.3983) Out-of-band

Microsoft release-history source

 2025-05-16 26100.3983 Hotpatch · Out-of-band
No OS restart
 KB5055523
Windows 11 Enterprise 24H2 KB5058497
Details

May 13, 2025—Hotpatch KB5058497 (OS Build 26100.3981)

Microsoft release-history source

 2025-05-13 26100.3981 Hotpatch
No OS restart
 KB5055523
Windows Server 2025 KB5058497
Details

May 13, 2025—Hotpatch KB5058497 (OS Build 26100.3981)

Microsoft release-history source

 2025-05-13 26100.3981 Hotpatch
No OS restart
 KB5055523
Windows Server Datacenter Azure Edition 2022 KB5058500
Details

May 13, 2025—Hotpatch KB5058500 (OS Build 20348.3630)

Microsoft release-history source

 2025-05-13 20348.3630 Hotpatch
No OS restart
 KB5055526
Windows 11 Enterprise 24H2 KB5055523
Details

April 8, 2025—Baseline

Microsoft release-history source

 2025-04-08 26100.3775 Baseline
Restart required
 Not documented
Windows Server 2025 KB5055523
Details

April 8, 2025—Baseline

Microsoft release-history source

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

 2025-04-08 Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 Baseline note
Details

April 8, 2025—Baseline

Microsoft release-history source

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

 2025-04-08 Not documented Baseline
Restart required
 Not documented
Windows 11 Enterprise 24H2 KB5053636
Details

KB5053636

Microsoft release-history source

 2025-03-11 26100.3403 Hotpatch · Public preview
No OS restart
 KB5050009
Windows Server 2025 KB5053636
Details

March 11, 2025—Hotpatch KB5053636 (OS Build 26100.3403)

Microsoft release-history source

 2025-03-11 26100.3403 Hotpatch
No OS restart
 KB5050009
Windows Server Datacenter Azure Edition 2022 KB5053638
Details

March 11, 2025—Hotpatch KB5053638 (OS Build 20348.3270)

Microsoft release-history source

 2025-03-11 20348.3270 Hotpatch
No OS restart
 KB5049983
Windows 11 Enterprise 24H2 KB5052105
Details

KB5052105

Microsoft release-history source

 2025-02-11 26100.3107 Hotpatch · Public preview
No OS restart
 KB5050009
Windows Server 2025 KB5052105
Details

February 11, 2025—Hotpatch KB5052105 (OS Build 26100.3107)

Microsoft release-history source

 2025-02-11 26100.3107 Hotpatch
No OS restart
 KB5050009
Windows Server Datacenter Azure Edition 2022 KB5052106
Details

February 11, 2025—Hotpatch KB5052106 (OS Build 20348.3148)

Microsoft release-history source

 2025-02-11 20348.3148 Hotpatch
No OS restart
 KB5049983
Windows Server 2025 KB5050009
Details

January 14, 2025—Baseline

Microsoft release-history source

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

 2025-01-14 Not documented Baseline
Restart required
 Not documented
Windows Server Datacenter Azure Edition 2022 Baseline note
Details

January 14, 2025—Baseline

Microsoft release-history source

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

 2025-01-14 Not documented Baseline
Restart required
 Not documented
Windows 11 Enterprise 24H2 KB5048794
Details

KB5048794

Microsoft release-history source

 2024-12-10 26100.2528 Hotpatch · Public preview
No OS restart
 Not documented
Windows Server 2025 KB5048794
Details

December 10, 2024—Hotpatch KB5048794 (OS Build 26100.2528)

Microsoft release-history source

 2024-12-10 26100.2528 Hotpatch
No OS restart
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5048800
Details

December 10, 2024—Hotpatch KB5048800 (OS Build 20348.2908)

Microsoft release-history source

 2024-12-10 20348.2908 Hotpatch
No OS restart
 KB5044281
Windows 11 Enterprise 24H2 KB5046696
Details

KB5046696

Microsoft release-history source

 2024-11-19 26100.2240 Hotpatch · Public preview
No OS restart
 Not documented
Windows Server 2025 KB5046696
Details

November 12, 2024—Hotpatch KB5046696 (OS Build 26100.2240)

Microsoft release-history source

 2024-11-12 26100.2240 Hotpatch
No OS restart
 Not documented
Windows Server Datacenter Azure Edition 2022 KB5046698
Details

November 12, 2024—Hotpatch KB5046698 (OS Build 20348.2819)

Microsoft release-history source

 2024-11-12 20348.2819 Hotpatch
No OS restart
 KB5044281
Windows Server Datacenter Azure Edition 2022 Baseline note
Details

October 8, 2024—Baseline

Microsoft release-history source

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

 2024-10-08 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: 39 entries; 0 different-build rows and 0 unsafe links excluded.

Windows 11 Enterprise 25H2: 26 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.