Windows Server release information

Beginning in September 2023, Windows Server has two primary release channels available: the Long-Term Servicing Channel (LTSC) and the Annual Channel (AC). The Long-Term Servicing Channel provides a longer-term option focusing on stability, whereas the Annual Channel provides more frequent releases. The Windows Server Semi-Annual Channel (SAC) was retired on August 9, 2022.

With the Long-Term Servicing Channel, a new major version of Windows Server is typically released every 2-3 years. The more frequent releases of the AC enable customers to take advantage of innovation more quickly, with a focus on containers and microservices. For a detailed comparison, see Windows Server servicing channels.

The focus on virtualization, container, and microservice innovation continues with Azure Stack HCI, Windows containers, and AKS on Azure Stack HCI.

If you are an IT administrator and want to programmatically get information from this page, use the Windows Updates API in Microsoft Graph.

Windows Server major versions by servicing option

(All dates are listed in ISO 8601 format: YYYY-MM-DD)

Windows Server releaseServicing optionEditionsAvailability dateLatest buildMainstream support end dateExtended support end date
Windows Server 2022 Long-Term Servicing Channel (LTSC) Datacenter, Standard 2021-08-18 20348.2764 2026-10-13 2031-10-14
Windows Server 2019 (version 1809) Long-Term Servicing Channel (LTSC) Datacenter, Standard 2018-11-13 17763.6414 End of servicing 2029-01-09
Windows Server 2016 (version 1607) Long-Term Servicing Branch (LTSB) Datacenter, Essentials, Standard 2016-08-02 14393.7428 End of servicing 2027-01-12

Note

Windows Server is governed by the Fixed Lifecycle Policy. See the Windows Lifecycle FAQ and Comparison of servicing channels for details regarding servicing requirements and other important information. To learn more about Windows Server’s Lifecycle Policy, see a Windows Server Releases.

Windows Server release history

The table below shows the history of all monthly security and non-security preview updates released for Windows Server 2022. To see release notes and learn more about the contents of Windows Server 2022 updates, check Windows Server 2022 Update History.

For Windows Server 2016 and Windows Server 2019 release information, see Windows 10 - release information. Release notes for these versions are available on Windows Server 2016 update history and Server 2019 update history.


Windows Server 2022 (OS build 20348)
Servicing option Availability date OS build KB article
LTSC 2024-10-24 20348.2764 KB5047767
LTSC 2024-10-08 20348.2762 KB5044281
LTSC 2024-09-10 20348.2700 KB5042881
LTSC 2024-08-13 20348.2655 KB5041160
LTSC 2024-07-09 20348.2582 KB5040437
LTSC 2024-06-20 20348.2529 KB5041054
LTSC 2024-06-11 20348.2527 KB5039227
LTSC 2024-05-14 20348.2461 KB5037782
LTSC 2024-04-09 20348.2402 KB5036909
LTSC 2024-03-22 20348.2342 KB5037422
LTSC 2024-03-12 20348.2340 KB5035857
LTSC 2024-02-13 20348.2322 KB5034770
LTSC 2024-01-09 20348.2227 KB5034129
LTSC 2023-12-12 20348.2159 KB5033118
LTSC 2023-11-14 20348.2113 KB5032198
LTSC 2023-10-10 20348.2031 KB5031364
LTSC 2023-09-12 20348.1970 KB5030216
LTSC 2023-08-08 20348.1906 KB5029250
LTSC 2023-07-11 20348.1850 KB5028171
LTSC 2023-06-13 20348.1787 KB5027225
LTSC 2023-05-09 20348.1726 KB5026370
LTSC 2023-04-11 20348.1668 KB5025230
LTSC 2023-03-14 20348.1607 KB5023705
LTSC 2023-02-14 20348.1547 KB5022842
LTSC 2023-01-10 20348.1487 KB5022291
LTSC 2022-12-20 20348.1368 KB5022553
LTSC 2022-12-13 20348.1366 KB5021249
LTSC 2022-11-22 20348.1311 KB5020032
LTSC 2022-11-17 20348.1251 KB5021656
LTSC 2022-11-08 20348.1249 KB5019081
LTSC 2022-10-25 20348.1194 KB5018485
LTSC 2022-10-17 20348.1131 KB5020436
LTSC 2022-10-11 20348.1129 KB5018421
LTSC 2022-09-20 20348.1070 KB5017381
LTSC 2022-09-13 20348.1006 KB5017316
LTSC 2022-08-16 20348.946 KB5016693
LTSC 2022-08-09 20348.887 KB5016627
LTSC 2022-07-19 20348.859 KB5015879
LTSC 2022-07-12 20348.825 KB5015827
LTSC 2022-06-23 20348.803 KB5014665
LTSC 2022-06-14 20348.768 KB5014678
LTSC 2022-05-24 20348.740 KB5014021
LTSC 2022-05-19 20348.709 KB5015013
LTSC 2022-05-10 20348.707 KB5013944
LTSC 2022-04-25 20348.681 KB5012637
LTSC 2022-04-12 20348.643 KB5012604
LTSC 2022-03-22 20348.617 KB5011558
LTSC 2022-03-08 20348.587 KB5011497
LTSC 2022-02-15 20348.558 KB5010421
LTSC 2022-02-08 20348.524 KB5010354
LTSC 2022-01-25 20348.502 KB5009608
LTSC 2022-01-17 20348.473 KB5010796
LTSC 2022-01-11 20348.469 KB5009555
LTSC 2022-01-05 20348.407 KB5010197
LTSC 2021-12-14 20348.405 KB5008223
LTSC 2021-11-22 20348.380 KB5007254
LTSC 2021-11-09 20348.350 KB5007205
LTSC 2021-10-26 20348.320 KB5006745
LTSC 2021-10-12 20348.288 KB5006699
LTSC 2021-09-27 20348.261 KB5005619
LTSC 2021-09-14 20348.230 KB5005575
LTSC 2021-08-26 20348.202 KB5005104

Windows Server 2019 (OS build 17763)
Servicing option Availability date OS build KB article
LTSC 2024-10-08 17763.6414 KB5044277
LTSC 2024-09-10 17763.6293 KB5043050
LTSC 2024-08-13 17763.6189 KB5041578
LTSC 2024-07-09 17763.6054 KB5040430
LTSC 2024-06-11 17763.5936 KB5039217
LTSC 2024-05-23 17763.5830 KB5039705
LTSC 2024-05-14 17763.5820 KB5037765
LTSC 2024-04-09 17763.5696 KB5036896
LTSC 2024-03-25 17763.5579 KB5037425
LTSC 2024-03-12 17763.5576 KB5035849
LTSC 2024-02-13 17763.5458 KB5034768
LTSC 2024-01-09 17763.5329 KB5034127
LTSC 2023-12-12 17763.5206 KB5033371
LTSC 2023-11-14 17763.5122 KB5032196
LTSC 2023-10-10 17763.4974 KB5031361
LTSC 2023-09-12 17763.4851 KB5030214
LTSC 2023-08-08 17763.4737 KB5029247
LTSC 2023-07-11 17763.4645 KB5028168
LTSC 2023-06-13 17763.4499 KB5027222
LTSC 2023-05-09 17763.4377 KB5026362
LTSC 2023-04-11 17763.4252 KB5025229
LTSC 2023-03-14 17763.4131 KB5023702
LTSC 2023-02-14 17763.4010 KB5022840
LTSC 2023-01-10 17763.3887 KB5022286
LTSC 2022-12-20 17763.3772 KB5022554
LTSC 2022-12-13 17763.3770 KB5021237
LTSC 2022-11-17 17763.3653 KB5021655
LTSC 2022-11-08 17763.3650 KB5019966
LTSC 2022-10-17 17763.3534 KB5020438
LTSC 2022-10-11 17763.3532 KB5018419
LTSC 2022-09-20 17763.3469 KB5017379
LTSC 2022-09-13 17763.3406 KB5017315
LTSC 2022-08-23 17763.3346 KB5016690
LTSC 2022-08-09 17763.3287 KB5016623
LTSC 2022-07-21 17763.3232 KB5015880
LTSC 2022-07-12 17763.3165 KB5015811
LTSC 2022-06-23 17763.3113 KB5014669
LTSC 2022-06-14 17763.3046 KB5014692
LTSC 2022-05-24 17763.2989 KB5014022
LTSC 2022-05-19 17763.2931 KB5015018
LTSC 2022-05-10 17763.2928 KB5013941
LTSC 2022-04-21 17763.2867 KB5012636
LTSC 2022-04-12 17763.2803 KB5012647
LTSC 2022-03-22 17763.2746 KB5011551
LTSC 2022-03-08 17763.2686 KB5011503
LTSC 2022-02-15 17763.2628 KB5010427
LTSC 2022-02-08 17763.2565 KB5010351
LTSC 2022-01-25 17763.2510 KB5009616
LTSC 2022-01-18 17763.2458 KB5010791
LTSC 2022-01-11 17763.2452 KB5009557
LTSC 2022-01-04 17763.2369 KB5010196
LTSC 2021-12-14 17763.2366 KB5008218
LTSC 2021-11-22 17763.2330 KB5007266
LTSC 2021-11-14 17763.2305 KB5008602
LTSC 2021-11-09 17763.2300 KB5007206
LTSC 2021-10-19 17763.2268 KB5006744
LTSC 2021-10-12 17763.2237 KB5006672
LTSC 2021-09-21 17763.2213 KB5005625
LTSC 2021-09-14 17763.2183 KB5005568
LTSC 2021-08-26 17763.2145 KB5005102
LTSC 2021-08-10 17763.2114 KB5005030
LTSC 2021-07-27 17763.2091 KB5005394
LTSC 2021-07-20 17763.2090 KB5004308
LTSC 2021-07-13 17763.2061 KB5004244
LTSC 2021-07-06 17763.2029 KB5004947
LTSC 2021-06-15 17763.2028 KB5003703
LTSC 2021-06-08 17763.1999 KB5003646
LTSC 2021-05-20 17763.1971 KB5003217
LTSC 2021-05-11 17763.1935 KB5003171
LTSC 2021-04-22 17763.1911 KB5001384
LTSC 2021-04-13 17763.1879 KB5001342
LTSC 2021-03-25 17763.1852 KB5000854
LTSC 2021-03-18 17763.1823 KB5001638
LTSC 2021-03-15 17763.1821 KB5001568
LTSC 2021-03-09 17763.1817 KB5000822
LTSC 2021-02-16 17763.1790 KB4601383
LTSC 2021-02-09 17763.1757 KB4601345
LTSC 2021-01-21 17763.1728 KB4598296
LTSC 2021-01-12 17763.1697 KB4598230
LTSC 2020-12-08 17763.1637 KB4592440
LTSC 2020-11-19 17763.1613 KB4586839
LTSC 2020-11-17 17763.1579 KB4594442
LTSC 2020-11-10 17763.1577 KB4586793
LTSC 2020-10-20 17763.1554 KB4580390
LTSC 2020-10-13 17763.1518 KB4577668
LTSC 2020-09-16 17763.1490 KB4577069
LTSC 2020-09-08 17763.1457 KB4570333
LTSC 2020-08-20 17763.1432 KB4571748
LTSC 2020-08-11 17763.1397 KB4565349
LTSC 2020-07-21 17763.1369 KB4559003
LTSC 2020-07-14 17763.1339 KB4558998
LTSC 2020-06-16 17763.1294 KB4567513
LTSC 2020-06-09 17763.1282 KB4561608
LTSC 2020-05-12 17763.1217 KB4551853
LTSC 2020-04-21 17763.1192 KB4550969
LTSC 2020-04-14 17763.1158 KB4549949
LTSC 2020-03-30 17763.1132 KB4554354
LTSC 2020-03-17 17763.1131 KB4541331
LTSC 2020-03-10 17763.1098 KB4538461
LTSC 2020-02-25 17763.1075 KB4537818
LTSC 2020-02-11 17763.1039 KB4532691
LTSC 2020-01-23 17763.1012 KB4534321
LTSC 2020-01-14 17763.973 KB4534273
LTSC 2019-12-10 17763.914 KB4530715
LTSC 2019-11-12 17763.864 KB4523205
LTSC 2019-10-15 17763.832 KB4520062
LTSC 2019-10-08 17763.805 KB4519338
LTSC 2019-10-03 17763.775 KB4524148
LTSC 2019-09-24 17763.774 KB4516077
LTSC 2019-09-23 17763.740 KB4522015
LTSC 2019-09-10 17763.737 KB4512578
LTSC 2019-08-17 17763.720 KB4512534
LTSC 2019-08-13 17763.678 KB4511553
LTSC 2019-07-22 17763.652 KB4505658
LTSC 2019-07-09 17763.615 KB4507469
LTSC 2019-06-26 17763.593 KB4509479
LTSC 2019-06-18 17763.592 KB4501371
LTSC 2019-06-11 17763.557 KB4503327
LTSC 2019-05-21 17763.529 KB4497934
LTSC 2019-05-19 17763.504 KB4505056
LTSC 2019-05-14 17763.503 KB4494441
LTSC 2019-05-03 17763.475 KB4495667
LTSC 2019-05-01 17763.439 KB4501835
LTSC 2019-04-09 17763.437 KB4493509
LTSC 2019-04-02 17763.404 KB4490481
LTSC 2019-03-12 17763.379 KB4489899
LTSC 2019-03-01 17763.348 KB4482887
LTSC 2019-02-12 17763.316 KB4487044
LTSC 2019-01-22 17763.292 KB4476976
LTSC 2019-01-08 17763.253 KB4480116
LTSC 2018-12-19 17763.195 KB4483235
LTSC 2018-12-11 17763.194 KB4471332
LTSC 2018-12-05 17763.168 KB4469342
LTSC 2018-11-13 17763.134 KB4467708
LTSC 2018-11-13 17763.107 KB4464455
LTSC 2018-10-09 17763.55 KB4464330
LTSC 2018-10-02 17763.1

Windows Server 2016 (OS build 14393)
Servicing option Availability date OS build KB article
LTSB 2024-10-08 14393.7428 KB5044293
LTSB 2024-09-10 14393.7336 KB5043051
LTSB 2024-08-13 14393.7259 KB5041773
LTSB 2024-07-09 14393.7159 KB5040434
LTSB 2024-06-11 14393.7070 KB5039214
LTSB 2024-05-14 14393.6981 KB5037763
LTSB 2024-04-09 14393.6897 KB5036899
LTSB 2024-03-22 14393.6800 KB5037423
LTSB 2024-03-12 14393.6796 KB5035855
LTSB 2024-02-13 14393.6709 KB5034767
LTSB 2024-01-09 14393.6614 KB5034119
LTSB 2023-12-12 14393.6529 KB5033373
LTSB 2023-11-14 14393.6452 KB5032197
LTSB 2023-10-10 14393.6351 KB5031362
LTSB 2023-09-12 14393.6252 KB5030213
LTSB 2023-08-08 14393.6167 KB5029242
LTSB 2023-07-11 14393.6085 KB5028169
LTSB 2023-06-23 14393.5996 KB5028623
LTSB 2023-06-13 14393.5989 KB5027219
LTSB 2023-05-09 14393.5921 KB5026363
LTSB 2023-04-11 14393.5850 KB5025228
LTSB 2023-03-14 14393.5786 KB5023697
LTSB 2023-02-14 14393.5717 KB5022838
LTSB 2023-01-10 14393.5648 KB5022289
LTSB 2022-12-13 14393.5582 KB5021235
LTSB 2022-11-17 14393.5502 KB5021654
LTSB 2022-11-08 14393.5501 KB5019964
LTSB 2022-10-18 14393.5429 KB5020439
LTSB 2022-10-11 14393.5427 KB5018411
LTSB 2022-09-13 14393.5356 KB5017305
LTSB 2022-08-09 14393.5291 KB5016622
LTSB 2022-07-12 14393.5246 KB5015808
LTSB 2022-06-14 14393.5192 KB5014702
LTSB 2022-05-19 14393.5127 KB5015019
LTSB 2022-05-10 14393.5125 KB5013952
LTSB 2022-04-12 14393.5066 KB5012596
LTSB 2022-03-08 14393.5006 KB5011495
LTSB 2022-02-08 14393.4946 KB5010359
LTSB 2022-01-17 14393.4889 KB5010790
LTSB 2022-01-11 14393.4886 KB5009546
LTSB 2022-01-05 14393.4827 KB5010195
LTSB 2021-12-14 14393.4825 KB5008207
LTSB 2021-11-14 14393.4771 KB5008601
LTSB 2021-11-09 14393.4770 KB5007192
LTSB 2021-10-12 14393.4704 KB5006669
LTSB 2021-09-14 14393.4651 KB5005573
LTSB 2021-08-10 14393.4583 KB5005043
LTSB 2021-07-29 14393.4532 KB5005393
LTSB 2021-07-13 14393.4530 KB5004238
LTSB 2021-07-07 14393.4470 KB5004948
LTSB 2021-06-08 14393.4467 KB5003638
LTSB 2021-05-11 14393.4402 KB5003197
LTSB 2021-04-13 14393.4350 KB5001347
LTSB 2021-03-18 14393.4288 KB5001633
LTSB 2021-03-09 14393.4283 KB5000803
LTSB 2021-02-09 14393.4225 KB4601318
LTSB 2021-01-12 14393.4169 KB4598243
LTSB 2020-12-08 14393.4104 KB4593226
LTSB 2020-11-19 14393.4048 KB4594441
LTSB 2020-11-10 14393.4046 KB4586830
LTSB 2020-10-13 14393.3986 KB4580346
LTSB 2020-09-08 14393.3930 KB4577015
LTSB 2020-08-11 14393.3866 KB4571694
LTSB 2020-07-14 14393.3808 KB4565511
LTSB 2020-06-18 14393.3755 KB4567517
LTSB 2020-06-09 14393.3750 KB4561616
LTSB 2020-05-12 14393.3686 KB4556813
LTSB 2020-04-21 14393.3659 KB4550947
LTSB 2020-04-14 14393.3630 KB4550929
LTSB 2020-03-17 14393.3595 KB4541329
LTSB 2020-03-10 14393.3564 KB4540670
LTSB 2020-02-25 14393.3542 KB4537806
LTSB 2020-02-11 14393.3504 KB4537764
LTSB 2020-01-23 14393.3474 KB4534307
LTSB 2020-01-14 14393.3443 KB4534271
LTSB 2019-12-10 14393.3384 KB4530689
LTSB 2019-11-12 14393.3326 KB4525236
LTSB 2019-10-15 14393.3300 KB4519979
LTSB 2019-10-08 14393.3274 KB4519998
LTSB 2019-10-03 14393.3243 KB4524152
LTSB 2019-09-24 14393.3242 KB4516061
LTSB 2019-09-23 14393.3206 KB4522010
LTSB 2019-09-10 14393.3204 KB4516044
LTSB 2019-08-17 14393.3181 KB4512495
LTSB 2019-08-13 14393.3144 KB4512517
LTSB 2019-07-16 14393.3115 KB4507459
LTSB 2019-07-09 14393.3085 KB4507460
LTSB 2019-06-27 14393.3056 KB4509475
LTSB 2019-06-18 14393.3053 KB4503294
LTSB 2019-06-11 14393.3025 KB4503267
LTSB 2019-05-23 14393.2999 KB4499177
LTSB 2019-05-19 14393.2972 KB4505052
LTSB 2019-05-14 14393.2969 KB4494440
LTSB 2019-04-25 14393.2941 KB4493473
LTSB 2019-04-25 14393.2908 KB4499418
LTSB 2019-04-09 14393.2906 KB4493470
LTSB 2019-03-19 14393.2879 KB4489889
LTSB 2019-03-12 14393.2848 KB4489882
LTSB 2019-02-19 14393.2828 KB4487006
LTSB 2019-02-12 14393.2791 KB4487026
LTSB 2019-01-17 14393.2759 KB4480977
LTSB 2019-01-08 14393.2724 KB4480961
LTSB 2018-12-19 14393.2670 KB4483229
LTSB 2018-12-11 14393.2665 KB4471321
LTSB 2018-12-03 14393.2641 KB4478877
LTSB 2018-11-27 14393.2639 KB4467684
LTSB 2018-11-13 14393.2608 KB4467691
LTSB 2018-10-18 14393.2580 KB4462928
LTSB 2018-10-09 14393.2551 KB4462917
LTSB 2018-09-20 14393.2515 KB4457127
LTSB 2018-09-11 14393.2485 KB4457131
LTSB 2018-08-30 14393.2457 KB4343884
LTSB 2018-08-14 14393.2430 KB4343887
LTSB 2018-07-30 14393.2396 KB4346877
LTSB 2018-07-24 14393.2395 KB4338822
LTSB 2018-07-16 14393.2368 KB4345418
LTSB 2018-07-10 14393.2363 KB4338814
LTSB 2018-06-21 14393.2339 KB4284833
LTSB 2018-06-12 14393.2312 KB4284880
LTSB 2018-05-17 14393.2273 KB4103720
LTSB 2018-05-08 14393.2248 KB4103723
LTSB 2018-04-17 14393.2214 KB4093120
LTSB 2018-04-10 14393.2189 KB4093119
LTSB 2018-03-29 14393.2156 KB4096309
LTSB 2018-03-22 14393.2155 KB4088889
LTSB 2018-03-13 14393.2125 KB4088787
LTSB 2018-02-22 14393.2097 KB4077525
LTSB 2018-02-13 14393.2068 KB4074590
LTSB 2018-01-17 14393.2035 KB4057142
LTSB 2018-01-03 14393.2007 KB4056890
LTSB 2017-12-12 14393.1944 KB4053579
LTSB 2017-11-27 14393.1914 KB4051033
LTSB 2017-11-14 14393.1884 KB4048953
LTSB 2017-11-02 14393.1797 KB4052231
LTSB 2017-10-17 14393.1794 KB4041688
LTSB 2017-10-10 14393.1770 KB4041691
LTSB 2017-09-28 14393.1737 KB4038801
LTSB 2017-09-12 14393.1715 KB4038782
LTSB 2017-08-28 14393.1670 KB4039396
LTSB 2017-08-16 14393.1613 KB4034661
LTSB 2017-08-08 14393.1593 KB4034658
LTSB 2017-08-07 14393.1537 KB4038220
LTSB 2017-07-18 14393.1532 KB4025334
LTSB 2017-07-11 14393.1480 KB4025339
LTSB 2017-06-27 14393.1378 KB4022723
LTSB 2017-06-13 14393.1358 KB4022715
LTSB 2017-05-09 14393.1198 KB4019472
LTSB 2017-04-11 14393.1066 KB4015217
LTSB 2017-03-20 14393.969 KB4015438
LTSB 2017-03-14 14393.953 KB4013429
LTSB 2017-01-10 14393.693 KB3213986
LTSB 2016-12-13 14393.576 KB3206632
LTSB 2016-12-09 14393.479 KB3201845
LTSB 2016-11-08 14393.447 KB3200970
LTSB 2016-10-27 14393.351 KB3197954
LTSB 2016-10-11 14393.321 KB3194798
LTSB 2016-09-29 14393.222 KB3194496
LTSB 2016-09-20 14393.187 KB3193494
LTSB 2016-09-13 14393.187 KB3189866
LTSB 2016-08-31 14393.105 KB3176938
LTSB 2016-08-23 14393.82 KB3176934
LTSB 2016-08-09 14393.51 KB3176495
LTSB 2016-08-02 14393.10 KB3176929