UPDATED 11/18/21: As part of the Windows 10 development, Microsoft has the Windows Insider Program, a testing program that allows developers, businesses, and enthusiasts to access early builds of the operating system to test new features and changes and validate software and drivers before deployments. In this guide, you can track the history of every Windows 10 Insider Preview build for PC, including information about their release date, changelog summary, build number, and more.
The program includes three readiness levels (also known as channels). The Dev Channel (formerly Fast ring) is for highly technical users since builds are rough and contain code that is still under heavy development. Usually, these builds are not stable, you’ll come across errors and problems, and you may have to use workarounds to fix problems that may affect your experience.
Also, previews in this channel are not attached to any specific release of Windows 10, which means that changes will be integrated into future releases when they’re ready and not necessarily in the next feature update. Furthermore, when some improvements are ready, they could arrive as a build update or servicing release.
The Beta Channel (formerly Slow ring) is for anyone who wants to test upcoming features or needs to validate apps and deployments. Previews in this channel are stable, but you may still run into issues. Also, features included in this channel are expected to ship with the next release of Windows 10.
Finally, the Release Preview Channel (formerly Release Preview ring) offers the final build of the next version of Windows 10 before it’s available to the public, with advanced quality updates and certain key features.
If you have a device enrolled in any of these channels, you can use this guide to track the history of every released Windows 10 Insider Preview build.
- Windows 10 21H2 Insider Preview build history
- Windows 10 21H1 Insider Preview build history
- Windows 10 20H2 Insider Preview build history
- Windows 10 version 2004 Insider Preview build history
- Windows 10 version 1909 Insider Preview build history
- Windows 10 version 1903 Insider Preview build history
- Windows 10 version 1809 Insider Preview build history
- Windows 10 version 1803 Insider Preview build history
- Windows 10 version 1709 Insider Preview build history
- Join Windows Insider Program
- Switch Windows Insider Program channel
- Stop Windows Insider Preview builds
Windows 10 21H2 Insider Preview build history
Windows 10 21H2 is the eleventh feature update expected to arrive in the fall of 2021. Some of the features and changes planned for this new version are already available through the Dev Channel.
Below you’ll find the history of the Windows Insider Preview builds released in the Dev Channel. The latest version available for testers is Windows 10 build 19044.1381.
| Release date | Build number | Channel | Platform | Notes | |
|---|---|---|---|---|---|
| 6 | November 18 2021 | 19044.1381 | Release Preview | PC | Minor update. Fixes. |
| 5 | November 16 2021 | 19044.1379 | Release Preview | PC | Minor update. Fixes. |
| 4 | October 20, 2021 | 19044.1319 (KB5006738 ) | Release Preview | PC | Minor update. Fixes. |
| 3 | September 2, 2021 | 19044.1202 | Release Preview Beta | PC | Minor update. Fixes. |
| 2 | August 18, 2021 | 19044.1200 | Release Preview | PC | Minor update. Fixes. Security features. WSL features. |
| 1 | July 16, 2021 | 19044.1147 | Dev | PC | Minor update. Fixes. Improvements. |
Although Microsoft hasn’t shared any official details, it’s expected that the company will skip the 21H1 update schedule and release version 21H2 during the fall of 2021 instead.
Windows 10 21H1 Insider Preview build history
Windows 10 21H1 is the eleventh feature update expected to arrive in the spring of 2021. This refresh will be considered a minor release with a small set of features and several fixes that will be delivered as a quick enablement package for version 2004 or 20H2.
Below you’ll find the history of the Windows Insider Preview builds released in the Beta Channel. The latest version available for testers is Windows 10 build 19043.1381.
Check out all the features and changes coming to Windows 10 21H1.
| Release date | Build number | Channel | Platform | Notes | |
|---|---|---|---|---|---|
| 12 | November 18, 2021 | 19043.1381 | Release Preview | PC | Fixes. |
| 11 | November 16, 2021 | 19043.1379 | Release Preview | PC | Fixes. |
| 10 | October 20, 2021 | 19043.1319 (KB5006738) | Release Preview | PC | Fixes. |
| 9 | June 18, 2021 | 19043.1081 (KB5003690) | Beta Channel Release Preview | PC | Fixes. |
| 8 | May 11, 2021 | 19043.985 (KB5003173) | Beta Channel Release Preview | PC | Fixes. |
| 7 | April 29, 2021 | 19043.964 (KB5001391) | Beta Channel Release Preview | PC | May 2021 Update Fixes. |
| 6 | April 20, 2021 | 19043.962 (KB5001391) | Beta Channel Release Preview (commercial) | PC | News and interests widget. Mixed Reality tweaks. Storage Migration tweaks. Fixes. |
| 5 | April 13, 2021 | 19043.928 (KB5001330) | Beta Channel Release Preview (commercial) | PC | Fixes. Improvements. |
| 4 | March 25, 2021 | 19043.906 (KB5000842) | Beta Channel | PC | Printer fix. Fixes. Improvements. |
| 3 | March 16, 2021 | 19043.899 (KB5000842) | Beta Channel | PC | Fixes. Improvements. |
| 2 | March 9, 2021 | 19043.867 (KB5000802) | Beta Channel | PC | Fixes. |
| 1 | February 17, 2021 | 19043.844 (KB4601382) | Beta Channel | PC | Initial release. Fixes. Windows Hello multi-camera. Remote access changes. |
Windows 10 20H2 Insider Preview build history
Windows 10 20H2 (October 2020 Update) is the tenth feature update expected to release in October 2020. Below you’ll find the history of the Windows Insider Preview builds released in the Beta Channel (formerly Slow ring). The latest version available for testers is Windows 10 build 19042.1023.
Check out all the new features and changes expected to arrive in Windows 10 20H2.
| Release date | Build number | Channel | Platform | Notes | |
|---|---|---|---|---|---|
| 19 | May 22, 2021 | 19042.1023 (KB5003214) | Beta Release Preview | PC | Bug fixes. .hif extension support. |
| 18 | March 25, 2021 | 19042.906 (KB5000842) | Release Preview | PC | Bug fixes. Improvements. |
| 17 | February 17, 2021 | 19042.844 (KB4601382) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 16 | February 9, 2021 | 19042.804 (KB4601319) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 15 | February 3, 2021 | 19042.789 (KB4598291) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 14 | January 21, 2021 | 19042.782 (KB4598291) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 13 | November 23, 2020 | 19042.662 (KB4586853) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 12 | October 29, 2020 | 19042.610 (KB4580364) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 11 | October 23, 2020 | 19042.608 (KB4580364) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 10 | October 13, 2020 | 19042.572 (KB4579311) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 9 | September 30, 2020 | 19042.546 (KB4577063) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 8 | September 22, 2020 | 19042.541 (KB4577063) | Beta Release Preview | PC | Bug fixes. Improvements. |
| 7 | September 8, 2020 | 19042.508 (KB4571756) | Beta | PC | Bug fixes. |
| 6 | August 26, 2020 | 19042.487 (KB4571744) | Beta | PC | Bug fixes. |
| 5 | August 11, 2020 | 19042.450 (KB4566782) | Beta | PC | Re-release of 19042.450. Plus bug fixes. |
| 4 | July 31, 2020 | 19042.423 (KB4568831) | Beta | PC | Re-release of 19042.423. Plus bug fixes. |
| 3 | July 24, 2020 | 19042.421 (KB4568831) | Beta | PC | Big update. Bug fixes. Start menu design. Taskbar personalization. Microsoft Edge changes. About settings tweaks. Notifications tweaks. |
| 2 | July 14, 2020 | 19042.388 | Beta | PC | Minor update. Bug fixes. |
| 1 | June 16, 2020 | 19042.330 | Beta | PC | Minor update. Printer fix. Chromium Edge. |
Windows 10 version 2004 Insider Preview build history
Windows 10 version 2004 (May 2020 Update) — also known as the 19H1 update — is the ninth feature update released on May 21, 2019. Below you’ll find the history of the Windows Insider Preview builds released in the Fast, Slow, and Release Preview rings. The latest version available for testers is Windows 10 build 19041.264.
Check out all the features and changes coming to Windows 10 version 2004 (20H1).
| Release date | Build number | Ring | Platform | Notes | |
|---|---|---|---|---|---|
| 59 | May 12, 2020 | 19041.264 | Release Preview ring Slow ring | PC | Minor update. KB4556803 |
| 58 | April 30, 2020 | 19041.208 | Release Preview ring | PC | Minor update. KB4558244 |
| 57 | April 22, 2020 | 19041.208 | Slow ring | PC | Minor update. KB4558244 |
| 56 | April 17, 2020 | 19041.207 | Release Preview ring | PC | Minor update. |
| 55 | April 14, 2020 | 19041.207 | Slow ring | PC | Minor update. KB4550936 |
| 54 | April 10, 2020 | 19041.172 | Slow ring | PC | Minor update. KB4552455 |
| 53 | March 26, 2020 | 19041.172 | Slow ring | PC | Minor update. KB4552455 |
| 52 | March 13, 2020 | 19041.153 | Slow ring | PC | Minor update. KB4541738 |
| 51 | February 27, 2020 | 19041.113 | Slow ring | PC | Minor update. KB4540409 |
| 50 | February 12, 2020 | 19041.84 | Slow ring | PC | Minor update. KB4539080 |
| 49 | January 15, 2020 | 19041.21 | Slow ring | PC | Minor update. KB4535550 |
| 48 | December 11, 2019 | 19041 | Fast ring Slow ring | PC | Minor update. Quick searches for Search Home. |
| 47 | December 4, 2019 | 19035 | Fast ring Slow ring | PC | Minor update. Driver downloads removed. Notepad old version restored. |
| 46 | November 27, 2019 | 19033 | Fast ring Slow ring | PC | Minor update. Version 2004. |
| 45 | November 22, 2019 | 19030 | Fast ring | PC | Minor update. Remove watermark. Almost RTM. |
| 44 | November 20, 2019 | 19025.1051 | Slow ring | PC | Minor update. |
| 43 | November 19, 2019 | 19028 | Fast ring | PC | Minor update. |
| 42 | November 15, 2019 | 19025 | Fast ring | PC | Minor update. Search algorithm update. |
| 41 | November 12, 2019 | 19023 | Fast ring | PC | Minor update. |
| 40 | November 11, 2019 | 19013.1122 | Slow ring | PC | Minor update. |
| 39 | November 5, 2019 | 19018 | Fast ring | PC | Minor update. |
| 38 | November 4, 2019 | 19013.1002 | Fast ring | PC | Minor update. KB4528630. RDP fix. |
| 37 | November 1, 2019 | 19013.1000 | Fast ring | PC | Minor update. KB4528332. |
| 36 | October 29, 2019 | 19013 | Fast ring | PC | Minor update. DirectX Raytracing. Updated Kaomoji. |
| 35 | October 22, 2019 | 19008 | Fast ring | PC | Minor update. No new features. |
| 34 | October 17, 2019 | 19002 | Fast ring | PC | Minor update. No new features. |
| 33 | October 8, 2019 | 18999 | Fast ring | PC | Minor update. No new features. |
| 32 | October 3, 2019 | 18995 | Fast ring | PC | Minor update. PIN on Safe mode. |
| 31 | September 24, 2019 | 18990 | Fast ring | PC | Minor update. Restart apps changes. Magnifier improvements. Narrator improvements. |
| 30 | September 19, 2019 | 18985 | Fast ring | PC | Minor update. Bluetooth pair changes. Windows Update with optional updates. |
| 29 | September 11, 2019 | 18980 | Fast ring | PC | Minor update. Cortana app available worldwide. WSL2 ARM64 support. Vibranium codename reference. |
| 28 | September 6, 2019 | 18975 | Fast ring | PC | Minor update. Cortana resize and drag. |
| 27 | August 29, 2019 | 18970 | Fast ring | PC | Major update. Reset this PC, Cloud Download. New tablet mode experience. |
| 26 | August 22, 2019 | 18965.1005 | Fast ring | PC | Minor update. KB4517787 (test). |
| 25 | August 21, 2019 | 18965 | Fast ring | PC | Minor update. Restart apps in Sign-in options settings. New Feedback app. |
| 24 | August 16, 2019 | 18963 | Fast ring | PC | Moderate update. GPU temperature monitor in Task Manager. Optional Features changes. Rename virtual desktops. Mouse cursor speed control in Settings. Notepad now Microsoft Store app. |
| 23 | August 7, 2019 | 18956 | Fast ring | PC | Moderate update. Status settings update. Notifications settings update. File Explorer drops Homegroup options context menu. |
| 22 | July 31, 2019 | 18950 | Fast ring | PC | Minor update. Japanese IME. Snip & Sketch tweaks. Reset this PC with Cloud download option. |
| 21 | July 26, 2019 | 18945 | Fast ring | PC | Minor update. Cortana app. File Explorer with Windows Search. Windows Defender renamed to Microsoft Defender. |
| 20 | July 18, 2019 | 18941 | Fast ring | PC | Minor update. Korean IME update. |
| 19 | July 10, 2019 | 18936 | Fast ring | PC | Minor update. Quick event from taskbar. Passwordless settings. |
| 18 | July 3, 2019 | 18932 | Fast ring | PC | Minor update. Eye Control changes. Notifications changes. Sync settings engine upgrade. |
| 17 | June 19, 2019 | 18922 | Fast ring | PC | Minor update. Language settings. Feedback Hub changes. Fixes. |
| 16 | June 12, 2019 | 18917 | Fast ring | PC | Minor update. WSL 2. Delivery Optimization settings. Windows Ink Workspace update. |
| 15 | June 5, 2019 | 18912 | Fast ring | PC | Minor update. |
| 14 | May 29, 2019 | 18908 | Fast ring | PC | Minor update. YourPhone new features. |
| 13 | May 15, 2019 | 18898 | Fast ring | PC | Minor update. Drive type on Task Manager. |
| 12 | May 10, 2019 | 18895 | Fast ring | PC | Minor update. Fixes Your Phone app. |
| 11 | May 8, 2019 | 18894 | Fast ring | PC | Minor update. File Explorer cloud search. |
| 10 | May 1, 2019 | 18890 | Fast ring | PC | Minor update. Kills Friendly Dates. |
| 9 | April 26, 2019 | 18885 | Fast ring | PC | Minor update. |
| 8 | April 10, 2019 | 18875 | Fast ring Skip Ahead | PC | Minor update. IME changes. |
| 7 | March 27, 2019 | 18865 | Skip Ahead | PC | Minor update. No new features. |
| 6 | March 20, 2019 | 18860 | Skip Ahead | PC | Minor update. SwiftKey languages. |
| 5 | March 13, 2019 | 18855 | Skip Ahead | PC | Minor update. Notepad unsaved recovery. |
| 4 | March 6, 2019 | 18850 | Skip Ahead | PC | Minor update. No new features. |
| 3 | February 28, 2019 | 18845 | Skip Ahead | PC | Minor update. No new features. |
| 2 | February 22, 2019 | 18841 | Skip Ahead | PC | Minor update. No new features. |
| 1 | February 14, 2019 | 18836 | Skip Ahead | PC | Minor update. No new features. |
Windows 10 version 1909 Insider Preview build history
Codenamed 19H2, Windows 10 version 1909 (November 2019 Update) was the eighth next major update released on November 12, 2019, as a cumulative update with new features and changes. Below you’ll find the history of the Windows Insider Preview builds released in the Fast, Slow, and Release Preview rings. The latest version available for testers is Windows 10 build 18362.10024 (Slow ring). If you’re in the Release Preview ring, the version number is Windows 10 build 18363.418.
| Release date | Build number | Ring | Platform | Notes | |
|---|---|---|---|---|---|
| 18 | October 21, 2019 | 18363.418 | Release Preview | PC | Minor update. Moves build 18362.10024 to 18363.418 |
| 17 | October 16, 2019 | 18362.10024 | Slow | PC | Minor update. Enables all features for version 1909. |
| 16 | October 8, 2019 | 18363.418 | Release Preview | PC | Minor update. Fixes. |
| 15 | October 3, 2019 | 18363.388 | Release Preview | PC | Minor update. Fixes. |
| 14 | September 27, 2019 | 18363.387 | Release Preview | PC | Minor update. Fixes. |
| 13 | September 25, 2019 | 18362.10022 | Slow | PC | Minor update. Fixes. |
| 12 | September 23, 2019 | 18363.385 | Release Preview | PC | Minor update. All features enabled. Not final version. |
| 11 | September 23, 2019 | 18362.385 | Release Preview | PC | Minor update. All features enabled. Not final version. |
| 10 | September 5, 2019 | 18362.10019 | Slow | PC | Minor update. All features enabled. |
| 9 | August 29, 2019 | 18363.329 | Release Preview | PC | Minor update. Two fixes. |
| 8 | August 27, 2019 | 18363.327 | Release Preview | PC | Minor update. Increases build number to 18363. Not final version. |
| 7 | August 19, 2019 | 18362.10015 | Slow | PC | Minor update. Updates build 18362.10013. Windows Defender Credential Guard for ARM64. Win32 (desktop) apps support from Microsoft Intune on Windows 10 S. |
| 6 | August 19, 2019 | 18362.10014 | Slow | PC | Minor update. Updates build 18362.100012. Same features as build 18362.10015, but disabled. |
| 5 | August 8, 2019 | 18362.10013 | Slow | PC | Minor update. Updates build 18362.10006. Calendar event taskbar. Notifications changes. Battery life improvements. CPU scheduling improvements. |
| 4 | August 8, 2019 | 18362.10012 | Slow | PC | Minor update. Updates build 18362.10005. Same features as build 18362.10013, but disabled. |
| 3 | July 17, 2019 | 18362.10006 | Slow | PC | Minor update. |
| 2 | July 15, 2019 | 18362.10005 | Slow | PC | Minor update. 3rd-party assistants Lock screen. |
| 1 | July 2, 2019 | 18362.10000 | Slow | PC | Minor update. No new features. |
| 0 | February 8, 2019 | 18334 | Skip Ahead | PC | Minor update. No new features. |
Windows 10 version 1903 Insider Preview build history
Codenamed 19H1, Windows 10 version 1903 (May 2019 Update) was the seventh major update released on May 21, 2019. Below you’ll find the history of the Windows Insider Preview builds released in the Fast, Slow, and Release Preview rings. The latest version available to Insiders in the Fast ring is Windows 10 build 18362 and build 18362.30 in the Slow ring. On April 8, 2019, Microsoft is making available Windows 10 build 18362.30 as the final version for the May 2019 Update in the Release Preview ring.
Check out all the features and changes coming to Windows 10 19H1.
| Release date | Build number | Ring | Platform | Notes | |
|---|---|---|---|---|---|
| 42 | April 8, 2019 | 18362.30 | Release Preview | PC | Final version |
| 41 | April 5, 2019 | 18362.30 | Slow ring Fast Ring | PC | KB4497464 |
| 40 | April 3, 2019 | 18356.21 | Slow ring | PC | KB4496796 |
| 39 | March 22, 2019 | 18362 | Slow ring | PC | Minor update. Bug fixes. |
| 38 | March 20, 2019 | 18362 | Fast ring | PC | Minor update. Bug fixes. |
| 37 | March 19, 2019 | 18361 | Fast ring | PC | Minor update. Bug fixes. |
| 36 | March 19, 2019 | 18356.16 | Slow ring | PC | KB4494123 |
| 35 | March 15, 2019 | 18358 | Fast ring | PC | Minor update. Bug fixes. |
| 34 | March 15, 2019 | 18356.1 | Slow ring | PC | Minor update. Quality update. |
| 33 | March 14, 2019 | 18351.26 | Slow ring | PC | KB4494195 |
| 32 | March 13, 2019 | 18351.8 | Slow ring | PC | KB4492310 |
| 31 | March 12, 2019 | 18356 | Fast ring | PC | Minor update. Bug fixes. Your Phone mirroring. |
| 30 | March 11, 2019 | 18351.7 | Slow ring | PC | KB4492310 |
| 29 | March 8, 2019 | 18353 | Fast ring | PC | Minor update. Bug fixes. Windows Sandbox changes. |
| 28 | March 5, 2019 | 18351 | Fast ring | PC | Minor update. Bug fixes. |
| 27 | March 1, 2019 | 18348 | Fast ring | PC | Minor update. Bug fixes. |
| 26 | February 27, 2019 | 18342.8 | Slow ring | PC | Minor update. Bug fixes. |
| 25 | February 26, 2019 | 18346 | Fast ring | PC | Minor update. Bug fixes. |
| 24 | February 22, 2019 | 18343 | Fast ring | PC | Minor update. Bug fixes. |
| 23 | February 20, 2019 | 18342 | Fast ring | PC | Minor update. File Explorer allows dot in filenames. Gaming improvements. Linux file access. Windows Sandbox configuration. Bug fixes. |
| 22 | February 8, 2019 | 18334 | Fast ring | PC | Minor update. Gaming improvements. Bug fixes. |
| 21 | February 1, 2019 | 18329 | Fast ring | PC | Minor update. Search with top apps. Mixed Reality with Win32 app support. |
| 20 | January 24, 2019 | 18323 | Fast ring | PC | Minor update. RAW image file format changes. Light theme improvements. |
| 19 | January 16, 2019 | 18317 | Fast ring | PC | Minor update. Cortana Search split. StartMenuExperienceHost.exe. Font drag/drop install. Insider settings updated. |
| 18 | January 9, 2019 | 18312 | Fast ring | PC | Minor update. Reserved Storage. Fiber Local Storage more slots. Reset this PC new UI. Disable acrylic option for Sign-in screen. |
| 17 | January 3, 2019 | 18309 | Fast ring | PC | Minor update. Windows Hello reset design for all editions. Passwordless auth for all editions. Cortana is off during clean install. |
| 16 | December 19, 2018 | 18305 | Fast ring | PC | Big update. Windows Sandbox. Password-less authentication. Settings homepage redesign. Symbols on emoji panel. |
| 15 | December 10, 2018 | 18298 | Fast ring | PC | Big update. File Explorer new icon. Setup new IU. Console Terminal settings. Security Key setup. |
| 14 | November 28, 2018 | 18290 | Fast ring | PC | Minor update. Start menu tweaks. Date & Time manual time sync. |
| 13 | November 14, 2018 | 18282 | Fast ring | PC | Big update. Light theme. Printing options. Windows Update changes. |
| 12 | November 7, 2018 | 18277 | Fast ring | PC | Minor update. Action Center brightness slider. Focus assist everything full screen. WDAG settings. Emoji 12. |
| 11 | October 31, 2018 | 18272 | Fast ring | PC | Minor update. Sign-in options update. SwiftKey more languages. Indic Phonetic keyboards. |
| 10 | October 24, 2018 | 18267 | Fast ring | PC | Minor update. Searching Windows. Touch keyboard improvements. |
| 9 | October 17, 2018 | 18262 | Fast ring | PC | Minor update. Task Manager DPI Aware. Uninstall built-in apps. Automatic troubleshooter. |
| 8 | October 3, 2018 | 18252 | Fast ring Skip Ahead | PC | Minor update. Ethernet settings. Disconnected network icon. Ebrima font. |
| 7 | September 26, 2018 | 18247 | Skip Ahead | PC | Minor update. No new features. |
| 6 | September 18, 2018 | 18242 | Skip Ahead | PC | Minor update. No new features. |
| 5 | September 12, 2018 | 18237 | Skip Ahead | PC | Minor update. Sign-in screen acrylic effect. |
| 4 | September 6, 2018 | 18234 | Skip Ahead | PC | Minor update. No new features. |
| 3 | August 16, 2018 | 18219 | Skip Ahead | PC | Minor update. No new features. |
| 2 | August 10, 2018 | 18214 | Skip Ahead | PC | Minor update. No new features. |
| 1 | July 25, 2018 | 18204 | Skip Ahead | PC | Minor update. No new features. |
Windows 10 version 1809 Insider Preview build history
Dubbed Redstone 5, Windows 10 version 1809 (October 2020 Update) was the sixth major feature update released on November 13, 2018. Below you’ll find the history of the Windows Insider Preview builds released in the Fast, Slow, and Release Preview rings. The latest version available to Insiders in the Fast ring is Windows 10 build 17763 and build 17763 in the Slow ring.
| Release date | Build number | Ring | Platform |
|---|---|---|---|
| October 30, 2018 | 17763.107 | Slow ring and Release Preview | PC |
| October 16, 2018 | 17763.104 | Slow ring and Release Preview | PC |
| October 9, 2018 | 17763.17 | Slow ring and Release Preview | PC |
| September 20, 2018 | 17763 | Slow ring | PC |
| September 18, 2018 | 17763 | Fast ring | PC |
| September 18, 2018 | 17758.1004 | Slow ring | PC |
| September 15, 2018 | 17760 | Fast ring | PC |
| September 14, 2018 | 17758 | Slow ring | PC |
| September 11, 2018 | 17758 | Fast ring | PC |
| September 11, 2018 | 17754 | Slow ring | PC |
| September 7, 2018 | 17755 | Fast ring | PC |
| September 5, 2018 | 17754 | Fast ring | PC |
| August 31, 2018 | 17751 | Fast ring | PC |
| August 30, 2018 | 17744 | Slow ring | PC |
| August 29, 2018 | 17738 | Slow ring | PC |
| August 24, 2018 | 17746 | Fast ring | PC |
| August 21, 2018 | 17744 | Fast ring | PC |
| August 17, 2018 | 17741 | Fast ring | PC |
| August 14, 2018 | 17738 | Fast ring | PC |
| August 10, 2018 | 17735 | Fast ring | PC |
| August 8, 2018 | 17733 | Fast ring | PC |
| August 3, 2018 | 17730 | Fast ring | PC |
| July 31, 2018 | 17728 | Fast ring | PC |
| July 26, 2018 | 17713.1002 | Slow ring | PC |
| July 25, 2018 | 17723 | Fast ring | PC |
| July 23, 2018 | 17713.1002 | Fast ring | PC |
| July 11, 2018 | 17713 | Fast ring | PC |
| July 7, 2018 | 17711 | Fast and Skip Ahead | PC |
| July 2, 2018 | 17692 | Slow ring | PC |
| June 27, 2018 | 17704 | Fast and Skip Ahead | PC |
| June 14, 2018 | 17692 | Fast and Skip Ahead | PC |
| June 6, 2018 | 17686 | Fast and Skip Ahead | PC |
| May 31, 2018 | 17682 | Fast and Skip Ahead | PC |
| May 24, 2018 | 17677 | Fast and Skip Ahead | PC |
| May 16, 2018 | 17672 | Fast and Skip Ahead | PC |
| May 9, 2018 | 17666 | Fast and Skip Ahead | PC |
| May 3, 2018 | 17661 | Fast and Skip Ahead | PC |
| April 25, 2018 | 17655 | Skip Ahead | PC |
| April 20, 2018 | 17650 | Skip Ahead | PC |
| April 12, 2018 | 17643 | Skip Ahead | PC |
| April 4, 2018 | 17639 | Skip Ahead | PC |
| March 30, 2018 | 17634 | Skip Ahead | PC |
| March 21, 2018 | 17627 | Skip Ahead | PC |
| March 16, 2018 | 17623 | Skip Ahead | PC |
| March 7, 2018 | 17618 | Skip Ahead | PC |
| February 14, 2018 | 17604 | Skip Ahead | PC |
Windows 10 version 1803 Insider Preview build history
Version 1803 (April 2018 Update) was the fifth feature update of Windows 10 released on April 10, 2018. Below you’ll find the history of the Windows Insider Preview builds released in the Fast, Slow, and Release Preview rings for the Redstone 4 update development. The latest version available to Insiders is Windows 10 build 17134.
| Release date | Build number | Ring | Platform |
|---|---|---|---|
| April 20, 2018 | 17134 | Release Preview | PC |
| April 20, 2018 | 17134 | Slow Ring | PC |
| April 16, 2018 | 17134 | Fast Ring | PC |
| April 5, 2018 | 17133 | Release Preview | PC |
| March 30, 2018 | 17133 | Slow | PC |
| March 27, 2018 | 17133 | Fast | PC |
| March 23, 2018 | 17128 | Fast | PC |
| March 23, 2018 | 17127 | Slow | PC |
| March 20, 2018 | 17127 | Fast | PC |
| March 16, 2018 | 17123 | Fast | PC |
| March 16, 2018 | 17120 | Slow | PC |
| March 13, 2018 | 17120 | Fast | PC |
| March 9, 2018 | 17115 | Slow | PC |
| March 6, 2018 | 17115 | Fast | PC |
| March 2, 2018 | 17112 | Fast | PC |
| February 27, 2018 | 17110 | Fast | PC |
| February 23, 2018 | 17107 | Fast | PC |
| February 14, 2018 | 17101 | Fast | PC |
| February 7, 2018 | 17093 | Fast and Skip Ahead | PC |
| January 24, 2018 | 17083 | Fast and Skip Ahead | PC |
| January 19, 2018 | 17074.1002 | Slow | PC |
| January 19, 2018 | 17074.1002 | Fast and Skip Ahead | PC |
| January 12, 2018 | 17074 | Fast and Skip Ahead | PC |
| December 19, 2017 | 17063 | Fast and Skip Ahead | PC |
| November 22, 2017 | 17046 | Fast and Skip Ahead | PC |
| November 16, 2017 | 17040 | Fast and Skip Ahead | PC |
| November 8, 2017 | 17035 | Fast and Skip Ahead | PC |
| November 1, 2017 | 17025 | Slow | PC |
| October 25, 2017 | 17025 | Fast and Skip Ahead | PC |
| October 13, 2017 | 17017 | Fast and Skip Ahead | PC |
| September 27, 2017 | 17004 | Fast (Skip Ahead) | PC |
| September 13, 2017 | 16362 | Fast (Skip Ahead) | PC |
| August 31, 2017 | 16353 | Fast (Skip Ahead) | PC |
| July 26, 2017 | 16251 | Fast (Skip Ahead) | PC |
Windows 10 version 1709 Insider Preview build history
Windows 10 version 1709 (Fall Creators Update), internally known as Restore Store 3, was the fourth feature update. You’ll find this history of all previews available for this release before it became available to everyone in the table below. The currently available version is Windows 10 build 16299.15 for PC and Windows 10 Mobile build 15254.1 (Windows 10 Mobile Fall Creators Update candidate) for phones.
| Release date | Build number | Ring | Platform |
|---|---|---|---|
| October 19, 2017 | 15254.1 | Release Preview | Mobile |
| October 11, 2017 | 15254.1 | Fast/Slow | Mobile |
| October 10, 2017 | 16299.15 | Release Preview | PC |
| October 4, 2017 | 16299.15 | Slow | PC |
| October 2, 2017 | 16299.15 | Fast | PC |
| September 28, 2017 | 16299 | Slow | PC |
| September 26, 2017 | 16299 | Fast | PC |
| September 26, 2017 | 16296 | Slow | PC |
| September 22, 2017 | 16296 | Fast | PC |
| September 22, 2017 | 15252 | Slow | Mobile |
| September 22, 2017 | 16291 | Slow | PC |
| September 22, 2017 | 16296 | Fast | PC |
| September 20, 2017 | 16294 | Fast | PC |
| September 19, 2017 | 16291 | Fast | PC |
| September 15, 2017 | 15252 | Fast | Mobile |
| September 15, 2017 | 16288 | Slow | PC |
| September 14, 2017 | 15245 | Slow | Mobile |
| September 12, 2017 | 16288 | Fast | PC |
| September 12, 2017 | 15250 | Fast | Mobile |
| September 1, 2017 | 16278 | Slow | PC |
| September 1, 2017 | 16281 | Fast | PC |
| August 29, 2017 | 16278 | Fast | PC |
| August 25, 2017 | 15245 | Fast | Mobile |
| August 25, 2017 | 16275 | Fast | PC |
| August 24, 2017 | 15240 | Slow | Mobile |
| August 23, 2017 | 16273 | Fast | PC |
| August 9, 2017 | 15240 | Fast | Mobile |
| August 2, 2017 | 16257 | Fast | PC |
| August 2, 2017 | 15237 | Fast | Mobile |
| July 26, 2017 | 16251 | Fast (rs3_release) | PC |
| July 26, 2017 | 15235 | Fast | Mobile |
| July 13, 2017 | 16241 | Fast | PC |
| July 13, 2017 | 15230 | Fast | Mobile |
| July 7, 2017 | 16237 | Fast | PC |
| July 7, 2017 | 16232 | Slow | PC |
| July 6, 2017 | 16232.1004 | Fast | PC |
| June 28, 2017 | 16232 | Fast | PC |
| June 28, 2017 | 15228 | Fast | Mobile |
| June 21, 2017 | 16226 | Fast | PC |
| June 21, 2017 | 15226 | Fast | Mobile |
| June 21, 2017 | 15223 | Slow | Mobile |
| June 13, 2017 | 15223 | Fast | Mobile |
| June 8, 2017 | 16215 | Fast | PC |
| June 8, 2017 | 15222 | Fast | Mobile |
| May 17, 2017 | 16199 | Fast | PC |
| May 17, 2017 | 15215 | Fast | Mobile |
| May 11, 2017 | 16193 | Fast | PC |
| May 11, 2017 | 15213 | Fast | Mobile |
| May 4, 2017 | 16188 | Fast | PC |
| April 28, 2017 | 15208 | Fast | Mobile |
| April 28, 2017 | 16184 | Fast | PC |
| April 24, 2017 | 15207 | Fast | Mobile |
| April 19, 2017 | 16179 | Fast | PC |
| April 19, 2017 | 15205 | Fast | Mobile |
| April 14, 2017 | 16176 | Fast | PC |
| April 14, 2017 | 15204 | Fast | Mobile |
| April 7, 2017 | 16170 | Fast | PC |
| Windows 10 Creators Update (Redstone 2) | |||
| April 25, 2017 | 15063.251 | Release Preview, Slow | Mobile |
| March 29, 2017 | 15063 | Slow | PC |
| March 29, 2017 | 15063.2 | Slow | Mobile |
| March 28, 2017 | 15063.2 | Fast | PC |
| March 20, 2017 | 15063 | Slow | PC |
| March 20, 2017 | 15063 | Fast | PC, Mobile |
| March 17, 2017 | 15061 | Fast | PC |
| March 16, 2017 | 15060 | Fast | PC |
| March 14, 2017 | 15058 | Fast | PC |
| March 10, 2017 | 15055 | Fast | PC, Mobile |
| March 10, 2017 | 15051 | Slow | Mobile |
| March 8, 2017 | 15051 | Fast | Mobile |
| March 8, 2017 | 15048 | Slow | PC |
| March 3, 2017 | 15048 | Fast | PC |
| March 3, 2017 | 15047 | Fast | Mobile |
| March 2, 2017 | 15043 | Slow | Mobile |
| March 1, 2017 | 15042 | Slow | PC |
| February 28, 2017 | 15046 | Fast | PC |
| February 24, 2017 | 15043 | Fast | Mobile |
| February 24, 2017 | 15042 | Fast | PC |
| February 8, 2017 | 15031 | Fast | PC, Mobile |
| February 3, 2017 | 15025 | Slow | PC |
| February 1, 2017 | 15025 | Fast | PC, Mobile |
| January 27, 2017 | 15019 | Fast | PC |
| January 20, 2017 | 15014 | Fast | PC, Mobile |
| January 12, 2017 | 15007 | Fast | PC, Mobile |
| January 9, 2017 | 15002 | Fast | PC |
| December 8, 2016 | 14986 | Fast | PC |
| December 1, 2016 | 14977 | Fast | Mobile |
| November 17, 2016 | 14971 | Fast | PC |
| November 16, 2016 | 14965 | Slow | PC, Mobile |
| November 9, 2016 | 14965 | Fast | PC, Mobile |
| November 3, 2016 | 14959 | Fast | PC, Mobile |
| October 25, 2016 | 14955 | Fast | PC, Mobile |
| October 19, 2016 | 14951 | Fast | PC, Mobile |
| October 13, 2016 | 14946 | Fast | PC, Mobile |
| October 7, 2016 | 14942 | Fast | PC, Mobile |
| September 28, 2016 | 14936 | Fast | PC, Mobile |
| September 14, 2016 | 14926 | Fast | PC |
| August 31, 2016 | 14915 | Fast | PC, Mobile |
| August 17, 2016 | 14905 | Fast | PC, Mobile |
| August 11, 2016 | 14901 | Fast | PC |
If you don’t know the version of Windows 10 your PC is running, you can use this guide to determine exactly the version of the operating system installed on your device.
Join Windows Insider Program
On Windows 10, using the Settings app, you can join your device into any of the three testing changes to get early access to new features and enhancements.
To join the Windows Insider Program, use these steps:
-
Open Settings.
-
Click on Update & Security.
-
Click on Windows Insider Program.
-
Click the Get started button.
Join the Windows Insider Program button -
Click the Link an account button.
Link an account option -
Sign in with your Microsoft account.
-
Click the Continue button.
-
Under the “Pick your Insider settings” section, select the previews you want to test, including:
- Dev Channel — Includes new features as soon as they’re ready, but builds are not stable.
- Beta Channel — Includes new features and enhancements expected for the next version of Windows 10. The previews are more stable, but you may still run into issues.
- Release Preview Channel — Includes the final version of Windows 10, minus some quality updates.
-
Click the Confirm button.
Select Insider channel -
Click the Confirm button to agree to terms and conditions.
-
Click the Restart button.
-
Open Settings after the reboot.
-
Click on Update & Security.
-
Click on Windows Update.
-
Click the Check for updates button.
Windows 10 Insider Preview build download -
Click the Restart button.
Once you complete the steps, the latest preview build of Windows 10 available in the channel you selected will download and install on your computer.
Switch Windows Insider Program channel
You can always switch between channels to test different builds, but you can’t roll back to the current version of Windows 10 without reinstallation.
To switch Insider channels, use these steps:
-
Open Settings.
-
Click on Update & Security.
-
Click on Windows Insider Program.
-
Under the “Pick your Insider settings” section, select the active Insider channel – for example, Dev Channel.
Windows Insider Preview settings -
Select a different Insider channel of Windows 10.
Switch Insider Preview Channel on Windows 10 -
Restart your device.
-
Open Settings after the reboot.
-
Click on Update & Security.
-
Click on Windows Update.
-
Click the Check for updates button.
-
Click the Restart button.
-
After you complete the steps, the new build from the active channel you selected will download and install on the device.
-
Stop Windows Insider Program builds
Although you can’t roll back to the current release of Windows 10 (unless you perform a clean installation), you can use an option to opt-out of the program, which will continue to download Insider builds. However, once the final version is released, the device will gracefully be removed from the program.
Stop Windows Insider Preview builds
To stop getting Insider builds of Windows 10, use these steps:
-
Open Settings.
-
Click on Update & Security.
-
Click on Windows Insider Program.
-
Under the “Stop getting preview builds” section, turn off the toggle switch for the setting.
Opt-out Windows 10 Insider Program
Once you complete the steps, the device will no longer receive Insider builds once the final version is installed.
Originally published in October 2020, information has been updated in Novmeber 2021, and it’ll be kept updated as new releases become available.
Mauro Huculak is a Windows expert and the Editor-in-Chief who started Pureinfotech in 2010 as an independent online publication. He is also been a Windows Central contributor for nearly a decade. Mauro has over 12 years of experience writing comprehensive guides and creating professional videos about Windows, software, and related technologies, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and About.me.