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The Windows 10 May 2021 Update [1] (codenamed "21H1" [2] ) is the twelfth stable build for Windows 10. It carries the build number 10.0.19043.
The first preview was released to Insiders who opted in to Beta Channel on February 17, 2021. [3] The update began rolling out on May 18, 2021. [4] Notable changes in the May 2021 Update include: [5]
The update reached end of service after the release of build 19043.2364 on December 13, 2022. [6] [7]
Preview builds of Windows 10, version 21H1 | |||
---|---|---|---|
Version | Knowledge base | Release date(s) | Highlights |
10.0.19043.844 [3] | KB4601382 | Beta Channel: February 17, 2021 |
|
10.0.19043.867 [8] | KB5000802 | Beta Channel: March 9, 2021 | |
10.0.19043.899 [9] | KB5000842 | Beta Channel: March 15, 2021 |
|
10.0.19043.906 [10] | Beta Channel: March 25, 2021 | ||
10.0.19043.928 [11] | KB5001330 | Beta Channel and Release Preview Channel: April 13, 2021 | |
10.0.19043.962 [12] | KB5001391 | Beta Channel and Release Preview Channel: April 19, 2021 |
|
10.0.19043.964 [13] | Beta Channel and Release Preview Channel: April 28, 2021 | ||
Version | Knowledge base | Release date(s) | Highlights |
Public patches of Windows 10, version 21H1 | |||
---|---|---|---|
Version | Knowledge base | Release date(s) | Highlights |
10.0.19043.985 Version 21H1 [14] [15] [16] | KB5003173 | Beta Channel and Release Preview Channel: May 11, 2021 Public release: | |
10.0.19043.1023 [17] [18] | KB5003214 | Beta Channel and Release Preview Channel: May 21, 2021 Public release: | |
10.0.19043.1052 [19] [20] | KB5003637 | Beta Channel, Release Preview Channel and public release: June 8, 2021 | |
10.0.19043.1055 [21] | KB5004476 | Beta Channel, Release Preview Channel and public release: June 11, 2021 | |
10.0.19043.1081 [22] [23] | KB5003690 | Beta Channel and Release Preview Channel: June 17, 2021 Public release: | Note: This update is no longer available from Windows Update, Microsoft Update Catalogue, or other release channels since July 21, 2021.
|
10.0.19043.1082 [24] | KB5004760 | Beta Channel, Release Preview Channel and public release: June 29, 2021 | |
10.0.19043.1083 [25] | KB5004945 | Beta Channel, Release Preview Channel and public release: July 6, 2021 | |
10.0.19043.1110 [26] | KB5004237 | Beta Channel, Release Preview Channel and public release: July 13, 2021 | |
10.0.19043.1147 [27] | KB5004296 | Release Preview Channel: July 15, 2021 | |
10.0.19043.1149 [28] | Release Preview Channel: July 20, 2021 | ||
10.0.19043.1151 [29] | Release Preview Channel and public release: July 29, 2021 | ||
10.0.19043.1165 [30] | KB5005033 | Release Preview Channel and public release: August 10, 2021 | |
10.0.19043.1200 [31] | KB5005101 | Release Preview Channel: August 18, 2021 | |
10.0.19043.1202 [32] [33] | Release Preview Channel: August 31, 2021 Public release: | ||
10.0.19043.1237 [34] | KB5005565 | Release Preview Channel and public release: September 14, 2021 | |
10.0.19043.1263 [35] | KB5005611 | Release Preview Channel: September 23, 2021 | |
10.0.19043.1266 [36] | Release Preview Channel and public release: September 30, 2021 | ||
10.0.19043.1288 [37] | KB5006670 | Release Preview Channel and public release: October 12, 2021 | |
10.0.19043.1319 [38] | KB5006738 | Release Preview Channel: October 19, 2021 | |
10.0.19043.1320 [39] [40] | Release Preview Channel and public release: October 26, 2021 | ||
10.0.19043.1348 [41] | KB5007186 | Release Preview Channel and public release: November 9, 2021 | |
10.0.19043.1379 [42] | KB5007253 | Release Preview Channel: November 16, 2021 | |
10.0.19043.1381 [43] | Release Preview Channel: November 18, 2021 | ||
10.0.19043.1387 [44] | Release Preview Channel and public release: November 22, 2021 | ||
10.0.19043.1415 [45] | KB5008212 | Public release: December 14, 2021 | |
10.0.19043.1466 [46] | KB5009543 | Public release: January 11, 2022 | |
10.0.19043.1469 [47] | KB5010793 | Public release: January 17, 2022 | |
10.0.19043.1503 [48] | KB5009596 | Public release: January 25, 2022 | |
10.0.19043.1526 [49] | KB5010342 | Public release: February 8, 2022 | |
10.0.19043.1566 [50] | KB5010415 | Public release: February 15, 2022 | |
10.0.19043.1586 [51] | KB5011487 | Public release: March 8, 2022 | |
10.0.19043.1620 [52] | KB5011543 | Public release: March 22, 2022 | |
10.0.19043.1645 [53] | KB5012599 | Public release: April 12, 2022 | |
10.0.19043.1682 [54] | KB5011831 | Public release: April 25, 2022 | |
10.0.19043.1706 [55] | KB5013942 | Public release: May 10, 2022 | |
10.0.19043.1708 [56] | KB5015020 | Public release: May 19, 2022 | |
10.0.19043.1741 [57] | KB5014023 | Public release: June 2, 2022 | |
10.0.19043.1766 [58] | KB5014699 | Public release: June 14, 2022 | |
10.0.19043.1767 [59] | KB5016139 | Public release: June 20, 2022 | |
10.0.19043.1806 [60] | KB5014666 | Public release: June 28, 2022 | |
10.0.19043.1826 [61] | KB5014666 | Public release: July 12, 2022 | |
10.0.19043.1865 [62] | KB5015878 | Public release: July 26, 2022 | |
10.0.19043.1889 [63] | KB5016616 | Public release: August 9, 2022 | |
10.0.19043.1949 [64] | KB5016688 | Public release: August 26, 2022 | |
10.0.19043.2006 [65] | KB5017308 | Public release: September 13, 2022 | |
10.0.19043.2075 [66] | KB5017380 | Public release: September 20, 2022 | |
10.0.19043.2130 [67] | KB5018410 | Public release: October 11, 2022 | |
10.0.19043.2132 [68] | KB5020435 | Public release: October 17, 2022 | |
10.0.19043.2193 [69] | KB5018482 | Public release: October 25, 2022 | |
10.0.19043.2194 [70] | KB5020953 | Public release: October 28, 2022 | |
10.0.19043.2251 [71] | KB5019959 | Public release: November 8, 2022 | |
10.0.19043.2311 [72] | KB5020030 | Public release: November 15, 2022 | |
10.0.19043.2364 [7] | KB5021233 | Public release: December 13, 2022 | |
Version | Knowledge base | Release date(s) | Highlights |
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