Windows Server, version 23H2

Windows Server, version 23H2
Version of Microsoft Windows
Logo
Screenshot
OS familyWindows 11 (NT 10.0)
Version23H2
SemesterZinc
Architecturex64
Latest build10.0.25398.1308
Release date2023-10-24
Replaces
Windows Server 2022
Replaced by
Windows Server 2025 (LTSC)

Windows Server, version 23H2 is the first release of the Windows Server Annual Channel for Containers,[1] which was released on 24 October 2023.[2] The newly established Annual Channel is designed to support fast, containerized workloads under a host operating system level. Unlike Long-Term Servicing Channel releases, Annual Channel releases are only available in the form of a Server Core install in a similar fashion to the ill-fated Semi-Annual Channel release, and cannot be upgraded to from an existing Windows Server 2022 installation. It is the last Windows Server release supported by x64 processors that do not have the SSE4.2 instruction set.

Annual Channel releases typically come with 18 months of mainstream support plus an additional 6 months of extended support. It is commercially distributed to volume-licensed customers via the Microsoft Software Assurance program. Developers can obtain a Windows Server Annual Channel release for development and testing purposes through an applicable Visual Studio subscription.

List of known builds[edit | edit source]

Cobalt[edit | edit source]

Confirmed build 21292.1010.rs_prerelease_flt.210108-1700
Confirmed build 21337.1010.rs_prerelease_flt.210312-1700

Nickel[edit | edit source]

Pre-Insider Preview[edit | edit source]

Leaked build 22364.1000.rs_prerelease.210416-1651
Leaked build 22364.1000.rs_fun.210416-1749
Leaked build 22366.1000.rs_fun.210420-1427
Leaked build 22366.1000.rs_prerelease.210420-1428

Insider Preview[edit | edit source]

Leaked build 22463.1000.rs_prerelease.210917-1503
Confirmed build 22478.1012.rs_prerelease_flt.211010-1700
Leaked build 22483.1000.rs_prerelease.211015-1431
Leaked build 22483.1011.rs_prerelease_flt.211016-1700
Leaked build 22509.1000.rs_prerelease.211119-1136
Leaked build 22509.1011.rs_prerelease_flt.211120-1700
Leaked build 22518.1000.rs_prerelease.211203-1458
Leaked build 22518.1012.rs_prerelease_flt.211205-1700
Leaked build 22526.1000.rs_prerelease.211215-1332
Leaked build 22538.1000.rs_prerelease.220114-1500
Leaked build 22538.1010.rs_prerelease_flt.220114-1700
Confirmed build 22621

Copper[edit | edit source]

Leaked build 25057.1000.rs_prerelease.220211-1352
Leaked build 25066.1000.rs_prerelease.220225-1423
Confirmed build 25072.rs_prerelease.220307-1355
Leaked build 25075.1000.rs_prerelease.220310-1420
Leaked build 25083.1000.rs_prerelease.220324-1501
Leaked build 25099.1000.rs_prerelease.220415-1423
Leaked build 25110.1000.rs_prerelease.220429-1336
Confirmed build 25114.1001
Leaked build 25120.1000.rs_prerelease.220513-1346
Leaked build 25120.1010.rs_prerelease_flt.220513-1700
Leaked build 25131.1000.rs_prerelease.220527-1351
Confirmed build 25133.rs_onecore_base2.220601-1453
Leaked build 25140.1000.rs_prerelease.220610-1351
Confirmed build 25145.1011.rs_prerelease_flt.220617-1544
Leaked build 25151.1000.rs_prerelease.220625-1835
Leaked build 25151.1010.rs_prerelease_flt.220625-1856
Leaked build 25158.1000.rs_prerelease.220708-1401
Confirmed build 25163.1010.rs_prerelease_flt.220715-1729
Leaked build 25169.1000.rs_prerelease.220723-1625
Confirmed build 25174.1010.rs_prerelease_flt.220729-1444
Confirmed build 25182.1010.rs_prerelease_flt.220812-1454
Leaked build 25192.1000.rs_prerelease.220826-1450
Leaked build 25197.1000.rs_prerelease.220902-1559
Leaked build 25206.1000.rs_prerelease.220916-1405
Confirmed build 25208.1000.rs_onecore_base2_ad.220921-1430
Confirmed build 25211.1010.rs_prerelease_flt.220923-1406
Leaked build 25217.1000.rs_prerelease.221001-1723
Leaked build 25217.1010.rs_prerelease_flt.221001-1732
Leaked build 25227.1000.rs_prerelease.221014-1353
Leaked build 25227.1010.rs_prerelease_flt.221014-1408
Leaked build 25236.1000.rs_prerelease.221028-1618
Leaked build 25236.1010.rs_prerelease_flt.221028-1637

Development of Copper fluently transitioned into Zinc around build 25240[3] and did not enter a stabilization phase usually associated with the creation of release branches.

Zinc[edit | edit source]

Leaked build 25246.1001.rs_prerelease.221111-1529
Confirmed build 25252.1010.rs_prerelease_flt.221120-1545
Leaked build 25267.1000.rs_prerelease.221209-1557
Confirmed build 25272.1004.rs_onecore_liof1.221221-1100
Leaked build 25276.1000.rs_prerelease.230106-1334
Leaked build 25284.1000.rs_prerelease.230119-1316
Leaked build 25295.1000.rs_prerelease.230203-1346
Leaked build 25314.1000.rs_prerelease.230303-1411
Leaked build 25314.1010.rs_prerelease_flt.230303-1429
Leaked build 25324.1000.rs_prerelease.230317-1418
Leaked build 25324.1011.rs_prerelease_flt.230317-1529
Leaked build 25335.1000.rs_prerelease.230331-1343
Leaked build 25346.1001.rs_prerelease.230415-1347
Leaked build 25357.1.zn_release.230428-1528
Leaked build 25379.1.zn_release.230525-1407

Preview[edit | edit source]

Leaked build 25398.1.zn_release.230610-1204
Confirmed build 25398.285.zn_release_svc_prod1.230628-1746
Leaked build 25398.287.zn_release_svc_prod1.230704-0855
Confirmed build 25398.342.zn_release_svc_prod1.230714-1750
Leaked build 25398.345.zn_release_svc_prod1.230726-1731
Confirmed build 25398.400.zn_release_svc_prod1.230807-1728
Leaked build 25398.408.zn_release_svc_prod1.230901-1432

General availability[edit | edit source]

Leaked build 25398.469.zn_release_svc_prod1.231003-0030

References[edit | edit source]

  1. ↑ https://learn.microsoft.com/en-us/windows-server/get-started/servicing-channels-comparison#annual-channel-ac
  2. ↑ https://learn.microsoft.com/en-us/lifecycle/products/windows-server-annual-channel
  3. ↑ https://twitter.com/thebookisclosed/status/1602638935011856384
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