# Windows 10, version 20H2

Windows 10 October 2020 Update (codenamed "20H2") is the tenth major update to Windows 10 as the cumulative update to the May 2020 Update. It carries the build number 10.0.19042.

## Version history

The first preview was released to Insiders who opted in to Beta Channel on June 16, 2020. The update began rolling out on October 20, 2020. Notable changes in the October 2020 Update include:
* New theme-aware tiles in Start menu
* Improvements to Microsoft Edge
** New Chromium-based Microsoft Edge included by default
** Switch between multiple tabs and Windows apps by pressing Alt+Tab ↹
** Quick access to active tabs for pinned sites in the taskbar
** Price comparison tool
* New personalized out-of-box experience for the taskbar
* Improvements to notification experience as well as tablet experience for 2-in-1 PCs
* Migrated Control Panel's System Information UI into the Settings About page in the Settings app
* Improvements to Modern Device Management (MDM)
The update has reached end of service on May 10, 2022 for Home, Pro, Pro Education, Pro for Workstations and Team (for Surface Hub devices) editions. The Enterprise, Enterprise multi-session, IoT Enterprise and Education editions have reached end of service on May 9, 2023.
Preview builds of Windows 10, version 20H2 :
| Version | Knowledge base | Release date(s) | Highlights |
| 10.0.19042.330 | | Beta Channel: June 16, 2020 | |
| 10.0.19042.388 | KB4565503 | Beta Channel: July 14, 2020 | |
| 10.0.19042.421 | KB4568831 | Beta Channel: July 24, 2020 | New theme-aware tiles in Start menu Improvements to Microsoft Edge Switch between multiple tabs and Windows apps by pressing Alt+Tab ↹ Quick access to active tabs for pinned sites in the taskbar New personalized and out-of-box experience for taskbar Improvements to notification experience as well as tablet experience for 2-in-1 PCs Migrated information in Control Panel's System page into the Settings About page in Settings app Improvements to Modern Device Management (MDM) |
| 10.0.19042.423 | KB4568831 | Beta Channel: July 31, 2020 | |
| 10.0.19042.450 | KB4566782 | Beta Channel: August 11, 2020 | |
| 10.0.19042.487 | KB4571744 | Beta Channel and Release Preview Channel: August 26, 2020 | |
| 10.0.19042.488 | KB4571744 | Beta Channel: September 3, 2020 | |
| 10.0.19042.508 | KB4571756 | Beta Channel: September 8, 2020 Release Preview Channel: September 18, 2020 | |
| 10.0.19042.541 | KB4577063 | Beta Channel and Release Preview Channel: September 22, 2020 | |
| 10.0.19042.546 | KB4577063 | Beta Channel and Release Preview Channel: September 30, 2020 | |
| Version | Knowledge base | Release date(s) | Highlights |
Public patches of Windows 10, version 20H2 :
| Version | Knowledge base | Release date(s) | Highlights |
| 10.0.19042.572 Version 20H2 | KB4579311 | Beta Channel and Release Preview Channel: October 13, 2020 Public release: October 20, 2020 | |
| 10.0.19042.608 | KB4580364 | Beta Channel and Release Preview Channel: October 22, 2020 | New Meet Now feature in Skype |
| 10.0.19042.610 | KB4580364 | Beta Channel, Release Preview Channel and public release: October 29, 2020 | |
| 10.0.19042.630 | KB4586781 | Beta Channel, Release Preview Channel and public release: November 10, 2020 | |
| 10.0.19042.631 | KB4594440 | Beta Channel, Release Preview Channel and public release: November 19, 2020 | |
| 10.0.19042.662 | KB4586853 | Beta Channel and Release Preview Channel: November 23, 2020 Public release: November 30, 2020 | New shadow stacks feature (part of Hardware-enforced Stack Protection) on supported hardware |
| 10.0.19042.685 | KB4592438 | Beta Channel, Release Preview Channel and public release: December 8, 2020 | |
| 10.0.19042.746 | KB4598242 | Beta Channel, Release Preview Channel and public release: January 12, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.782 | KB4598291 | Beta Channel and Release Preview Channel: January 21, 2021 | |
| 10.0.19042.789 | KB4598291 | Beta Channel, Release Preview Channel and public release: February 2, 2021 | |
| 10.0.19042.804 | KB4601319 | Beta Channel, Release Preview Channel and public release: February 9, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.844 | KB4601382 | Beta Channel and Release Preview Channel: February 17, 2021 Public release: February 24, 2021 | Added kiosk mode (with assigned access single app) support for Microsoft Edge |
| 10.0.19042.867 | KB5000802 | Release Preview Channel and public release: March 9, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.868 | KB5001567 | Release Preview Channel and public release: March 15, 2021 | |
| 10.0.19042.870 | KB5001649 | Release Preview Channel and public release: March 18, 2021 | |
| 10.0.19042.906 | KB5000842 | Release Preview Channel: March 25, 2021 Public release: March 29, 2021 | |
| 10.0.19042.928 | KB5001330 | Public release: April 13, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.962 | KB5001391 | Release Preview Channel: April 19, 2021 | |
| 10.0.19042.964 | KB5001391 | Release Preview Channel and public release: April 28, 2021 | New "News and Interests" feature on the taskbar |
| 10.0.19042.985 | KB5003173 | Release Preview Channel and public release: May 11, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1023 | KB5003214 | Release Preview Channel: May 21, 2021 Public release: May 25, 2021 | |
| 10.0.19042.1052 | KB5003637 | Release Preview Channel and public release: June 8, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1055 | KB5004476 | Public release: June 11, 2021 | |
| 10.0.19042.1081 | KB5003690 | Release Preview Channel: June 17, 2021 Public release: June 21, 2021 | This update is no longer available from Windows Update, Microsoft Update Catalog or other release channels since July 21, 2021. Added support for USB Test and Measurement Class (USBTMC) interface |
| 10.0.19042.1082 | KB5004760 | Public release: June 29, 2021 | |
| 10.0.19042.1083 | KB5004945 | Public release: July 6, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1110 | KB5004237 | Public release: July 13, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1151 | KB5004296 | Public release: July 29, 2021 | |
| 10.0.19042.1165 | KB5005033 | Public release: August 10, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1202 | KB5005101 | Public release: September 1, 2021 | |
| 10.0.19042.1237 | KB5005565 | Public release: September 14, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1266 | KB5005611 | Public release: September 30, 2021 | |
| 10.0.19042.1288 | KB5006670 | Public release: October 12, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1320 | KB5006738 | Public release: October 26, 2021 | |
| 10.0.19042.1348 | KB5007186 | Public release: November 9, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1387 | KB5007253 | Public release: November 22, 2021 | |
| 10.0.19042.1415 | KB5008212 | Public release: December 14, 2021 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1466 | KB5009543 | Public release: January 11, 2022 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1469 | KB5010793 | Public release: January 17, 2022 | |
| 10.0.19042.1503 | KB5009596 | Public release: January 25, 2022 | |
| 10.0.19042.1526 | KB5010342 | Public release: February 8, 2022 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1566 | KB5010415 | Public release: February 15, 2022 | |
| 10.0.19042.1586 | KB5011487 | Public release: March 8, 2022 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1620 | KB5011543 | Public release: March 22, 2022 | |
| 10.0.19042.1645 | KB5012599 | Public release: April 12, 2022 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1682 | KB5011831 | Public release: April 25, 2022 | |
| 10.0.19042.1706 | KB5013942 | Public release: May 10, 2022 | This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1708 | KB5015020 | Public release: May 19, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.1741 | KB5014023 | Public release: June 2, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.1766 | KB5014699 | Public release: June 14, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1767 | KB5016139 | Public release: June 20, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1826 | KB5015807 | Public release: July 12, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1865 | KB5015878 | Public release: July 26, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.1889 | KB5016616 | Public release: August 9, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This is the final update available for its Windows Server SAC counterpart. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.1949 | KB5016688 | Public release: August 26, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2006 | KB5017308 | Public release: September 13, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2075 | KB5017380 | Public release: September 20, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2130 | KB5018410 | Public release: October 11, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2132 | KB5020435 | Public release: October 17, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2193 | KB5018482 | Public release: October 25, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2194 | KB5020953 | Public release: October 28, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2251 | KB5019959 | Public release: November 8, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2311 | KB5020030 | Public release: November 15, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2364 | KB5021233 | Public release: December 13, 2022 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2486 | KB5022282 | Public release: January 10, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2546 | KB5019275 | Public release: January 19, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2604 | KB5022834 | Public release: February 14, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2673 | KB5022906 | Public release: February 21, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2728 | KB5023696 | Public release: March 14, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. This update is no longer available from Microsoft Update Catalog or other release channels since September 12, 2023, although it continues to be available from Windows Update. |
| 10.0.19042.2788 | KB5023773 | Public release: March 21, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2846 | KB5025221 | Public release: April 11, 2023 | This update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| 10.0.19042.2965 | KB5026361 | Public release: May 9, 2023 | This final update is available for Education, Enterprise, Enterprise multi-session and IoT Enterprise editions only. |
| Version | Knowledge base | Release date(s) | Highlights |