Patch Tuesday update history for Windows 10 [Changelog]

Madalina Dinita
by Madalina Dinita
Former Managing Editor
Madalina has been a Windows fan ever since she got her hands on her first Windows XP computer. She is interested in all things technology, especially emerging technologies -- AI and DNA computing in... Read more
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Windows 10 Changelog

Patch Tuesday Monthly Releases for Windows 10 versions

  1. Windows 10 v1507 (Threshold 1)
  2. Windows 10 v1511 (November Update)
  3. Windows 10 v1607 (Anniversary Update)
  4. Windows 10 v1703 (Creators Update)
  5. Windows 10 v1709 (Fall Creators Update)
  6. Windows 10 v1803 (April 2018 Update)
  7. Windows 10 v1809 (October 2018 Update)
  8. Windows 10 v1903 (May 2019 Update)
  9. Windows 10 v1909 (November 2019 Update)
  10. Windows 10 v2004 (May 2020 Update)
  11. Windows 10 v2009 (October 2020 Update)

Windows 10 version 2009 [October 2020 Update]

Windows 10 version 20H2 is the latest Windows 10 OS version, and it was released in October 2020.

Obtaining the latest update is incredibly easy, especially if you already have Windows 10 v2004, and can be easily achieved via the Windows Update menu.

KB number Version (OS Build) Release date Notes
KB5003173 OS Builds 19042.985 May 11, 2021 Security Update
KB5001330 OS Build 19042.928 April 13, 2021 Security Update
KB5000802 OS Build 19042.867 March 9, 2021 Security Updates
KB4601319 OS Build 19042.804 February 9, 2021 Security Updates
KB4598242 OS Build 19042.746 January 12, 2021 Security Updates
KB4592438 OS Build 19042.685 December 8, 2020 Security Update
KB4586781 OS Build 19042.630 November 10, 2020 Security Update

Windows 10 version 2004 [May 2020 Update]

Windows 10 version 2004 is the first major update of the year 2020, and it was released back in May.

When it was made available, 22 new features were present and ready to be used by the general public, with more coming on the way.

These included improvements to Reserved Storage, a New Cortana App, Task Manager improvements, and more.

KB number Version (OS Build) Release date Notes
KB5003173 OS Builds 19041.985 May 11, 2021 Security Update
KB5001330 OS Build 19041.928 April 13, 2021 Security Update
KB5000802 OS Builds 19041.868 March 9, 2021 Security Updates
KB4601319 OS Builds 19041.804 February 9, 2021 Security Updates
KB4598242 OS Build 19041.746 January 12, 2021 Security Updates
KB4592438 OS Build 19041.685 December 8, 2020 Security Updates
KB4586781 OS Build 19041.630 November 10, 2020 Security Updates
KB4577063 OS Build 19041.572 October 13, 2020 Security Updates
KB4566782 OS Build 19041.546 September 8, 2020 Security Updates
KB4566782 OS Build 19041.450 August 11, 2020 Security Updates
KB4565503 OS Build 19041.388 July 14, 2020 Security Updates
KB4557957 OS Build 19041.329 June 9 , 2020 Cumulative Update

Windows 10 version 1909 [November 2019 Update]

Windows 10 version 1909 is among the most popular and most used versions of Windows 10 currently available. As its name suggests, Microsoft released it in November 2019.

This feature update doesn’t pack as many new features as previous releases. Key changes include: Windows Defender Credential Guard is now compatible with ARM64 devices, enhanced Windows Sandbox capabilities, Windows Virtual Desktop is now available to all users, and more.

KB number Version (OS Build) Release date Notes
KB5003169 OS Build 18363.1556 May 11, 2021 Security Update
KB5001337 OS Build 18363.1500 April 13, 2021 Security Update
KB5000822 OS Build 17763.1817 March 9, 2021 Security Updates
KB4601315 OS Build 18363.1377 February 9, 2021 Security Updates
KB4598229 OS Build 18363.1316 January 12, 2021 Security Updates
KB4592449 OS Build 18363.1256 December 8, 2020 Security update
KB4586786 OS Build 18363.1198 November 10, 2020 Security update
KB4577671 OS Build 18363.1139 October 13, 2020 Security update
KB4574727 OS Build 18363.1082 September 8, 2020 Security update
KB4565351 OS Build 18363.1016 August 11, 2020 Security update
KB4565483 OS Build 18363.959 July 14, 2020 Security update
KB4560960 OS Build 18363.900 June 9, 2020 Security update
KB4556799 OS Build 18363.836 May 12, 2020 Security update
KB4549951 OS Build 18363.778 April 14, 2020 Security update
KB4540673 OS Build 18363.719 March 10, 2020 Security update
KB4532693 OS Build 18363.657 February 11, 2020 Security update
KB4528760 OS Build 18363.592 January 14, 2020 Security update
KB4530684 OS Build 18363.535 December 10, 2019 Security update

Windows 10 version 1903 [May 2019 Update]

Windows 10 version 1903 is also named Windows 10 May Update. Code-named “19H1”, it is the seventh Windows 10 version released by Microsoft in May 2019.

Windows 10 May Update offers, among others, an improved Start menu and a new tool named Windows Sandbox.

KB number Version (OS Build) Release date Notes
KB4592449 OS Build 18362.1256 December 8, 2020 Security update
KB4586786 OS Build 18362.1198 November 10, 2020 Security update
KB4577671 OS Build 18362.1139 October 13, 2020 Security update
KB4574727 OS Build 18362.1082 September 8, 2020 Security update
KB4565351 OS Build 18362.1016 August 11, 2020 Security update
KB4565483 OS Build 18362.959 July 14, 2020 Security update
KB4560960 OS Build 18362.900 June 9, 2020 Security update
KB4551853 OS Build 18362.836 May 12, 2020 Security update
KB4549951 OS Builds 18362.778 April 14, 2020 Security update
KB4540673 OS Build 18362.719 March 10, 2020 Security update
KB4532693 OS Build 18362.657 February 11, 2020 Security update
KB4528760 OS Build 18362.592 January 14, 2020 Security update
KB4530684 OS Build 18363.535 December 10, 2019 Security update KB4524570
KB4524570 OS Build 18362.476 November 12, 2019 Security update KB4524570
KB4522355 OS Build 18362.418 October 24, 2019 Security update for Slow Ring Insiders quality improvements
KB4517389 OS Build 18362.418 October 8, 2019 security update, includes quality quality improvements
KB4515384 OS Build 18362.356 September 10, 2019 security update
KB4512508 OS Build 18362.295 August 13, 2019 security update
KB4507453 OS Build 18362.239 July 9, 2019 Patch Tuesday
KB4501375 OS Build 18362.207 June 27, 2019 Cumulative update
KB4503293 18362.175 June 11, 2019 Patch Tuesday
KB4497935 18362.145 May 24, 2019 Insider-only
KB4505057 18362.116 May 19, 2019 Insider-only
KB4497936 18362.113 May 14, 2019 Insider-only
KB4497093 18362.86 April 26, 2019 Insider-only
KB4495666 18362.53 April 9, 2019 Insider-only

Windows 10 version 1809 [October Update]

On November 13, 2018, Microsoft re-released the Windows 10 October Update (version 1809). It is also code-named Redstone 5, the last of the series named in this manner.

Among many other features, it offers dark theme support in File Explorer and a touch keyboard powered by SwiftKey.

KB number Version Release date Notes
KB5003171 OS Build 17763.1935 May 11, 2021 Security Update
KB5001342 OS Build 17763.1879 April 13, 2021 Security Update
KB5000808 OS Build 18363.1440 March 9, 2021 Security Updates
KB4601345 OS Build 17763.1757 February 9, 2021 Security Updates
KB4598230 OS Build 17763.1697 January 12, 2021 Security Updates
KB4592440 OS Build 17763.1637 December 8, 2020 Security update
KB4586793 OS Build 17763.1577 November 10, 2020 Security update
KB4577668 OS Build 17763.1518 October 13, 2020 Security update
KB4570333 OS Build 17763.1457 September 8, 2020 Security update
KB4565349 OS Build 17763.1397 August 11, 2020 Security update
KB4558998 OS Build 17763.1339 July 14, 2020 Security update
KB4561608 OS Build 17763.1282 June 9, 2020 Security update
KB4551853 OS Build 17763.1217 May 12, 2020 Security update
KB4549949 OS Build 17763.1158 April 14, 2020 Security update
KB4538461 OS Build 17763.1039 March 10, 2020 Security update
KB4532691 OS Build 17763.1039 February 11, 2020 security update
KB4534273 OS Build 17763.973 January 14, 2020 security update
KB4530715 OS Build 17763.914 December 10, 2019 security update
KB4523205 OS Build 17763.864 November 12, 2019 security update
KB4520062 OS Build 17763.832 October 15, 2019 security update
KB4519338 OS Build 17763.805 October 8, 2019 security update
KB4512578 OS Build 17763.737 September 10, 2019 security update
KB4511553 OS Build 17763.678 August 13, 2019 security update
KB4507469 OS Build 17763.615 July 9, 2019 Patch Tuesday
KB4509479 OS Build 17763.593 June 26, 2019 Cumulative update
KB4501371 OS Build 17763.592 June 18, 2019 Cumulative update
KB4503327 OS Build 17763.557 June 11, 2019 Patch Tuesday
KB4497934 OS Build 17763.529 May 21, 2019 Cumulative update
KB4505057 OS Build 17763.504 May 19, 2019 Fixes uk.gov website issues
KB4494441 OS Build 17763.503 May 14, 2019 Patch Tuesday
KB4501835 17763.439 May 1, 2019 Cumulative update
KB4493509 17763.437 April 9, 2019 Patch Tuesday
KB4490481 17763.404 April 2, 2019 Cumulative update
KB4489899 17763.379 March 12, 2019 Patch Tuesday
KB4482887 17763.348 March 1, 2019 Cumulative update
KB4487044 17763.316 February 12, 2019 Patch Tuesday
KB4480116 17763.253 January 8, 2019 Cumulative update
KB4483235 17763.195 December 19, 2018 Security update to Internet Explorer
KB4471332 17763.194 December 11, 2018 Patch Tuesday
KB4469342 17763.168 December 5, 2018 Cumulative update
KB4467682 17763.167 November 27, 2018 Cumulative update
KB4467708 17763.134 November 13, 2018 Patch Tuesday

Windows 10 version 1803 [April 2018 Update]

Windows 10 April 2018 Update, also code-named Redstone 4, was made available on April 30, 2018.

Windows 10 version 1803 is marked by the modernization of many Settings components, making life easier for Windows 10 users.

KB number Version (OS Build) Release date Notes
KB5003174 OS Build 17134.2208 May 11, 2021 Security Update
KB5001339 OS Build 17134.2145 April 13, 2021 Security Update
KB5000809 OS Build 17134.2087 March 9, 2021 Security Updates
KB4601354 OS Build 17134.2026 February 9, 2021 Security Updates
KB4598245 OS Build 17134.1967 January 12, 2021 Security update
KB4592446 OS Build 17134.1902 December 8, 2020 Security update
KB4586785 OS Build 17134.1845 November 10, 2020 Security update
KB4580330 OS Build 17134.1792 October 13, 2020 Security update
KB4577032 OS Build 17134.1726 September 8, 2020 Security update
KB4571709 OS Build 17134.1667 August 11, 2020 Security update
KB4565489 OS Build 17134.1610 July 14, 2020 Security update
KB4561621 OS Build 17134.1550 June 9, 2020 Security update
KB4556807 OS Build 17134.1488 May 12, 2020 Security update
KB4550922 OS Build 17134.1425 April 14, 2020 Security update
KB4540689 OS Build 17134.1365 March 10, 2020 Security update
KB4537762 OS Build 17134.1304 February 11, 2020 security update
KB4534293 OS Build 17134.1246 January 14, 2020 security update
KB4530717 17134.1184 December 10, 2019 security update
KB4525237 17134.1130 November 12, 2019 security update
KB4519978 17134.1099 October 15, 2019 security update
KB4520008 17134.1069 October 8, 2019 security update
KB4516058 17134.1006 September 10, 2019 security update
KB4512501 17134.950 August 13, 2019 security update
KB4507435 17134.885 July 9, 2019 Patch Tuesday
KB4509478 17134.860 June 26, 2019 Cumulative update
KB4503288 17134.858 June 18, 2019 Cumulative update
KB4503286 17134.829 June 11, 2019 Patch Tuesday
KB4499183 17134.799 May 21, 2019 Cumulative update
KB4505064 17134.766 May 19, 2019 Fixes uk.gov website issues
KB4499167 17134.765 May 14, 2019 Patch Tuesday
KB4493437 17134.753 April 26, 2019 Cumulative update
KB4493464 17134.706 April 9, 2019 Patch Tuesday
KB4489894 17134.677 March 19, 2019 Patch Tuesday
KB4489868 17134.648 March 12, 2019 Patch Tuesday
KB4486996 17134.619 February 19, 2019 Cumulative update
KB4487017 17134.590 February 12, 2019 Patch Tuesday
KB4480976 17134.556 January 15, 2019 Cumulative update
KB4480966 17134.523 January 8, 2019 Patch Tuesday
KB4483234 17134.472 December 19, 2018 Security update to Internet Explorer
KB4471324 17134.471 December 11, 2018 Patch Tuesday
KB4467682 17134.441 November 27, 2018 Cumulative update
KB4467702 17134.407 November 13, 2018 Patch Tuesday

Windows 10 version 1709 [Fall Creators Update]

This was one of the largest Windows 10 updates and among many new features, it brought the fullscreen mode and reading enhancements and many convenience features added to Microsoft Edge.

Microsoft service for Home and Pro editions was stopped on April 9, 2019, but will continue for Enterprise and Education editions until April 14, 2020.

Here is the list of monthly roll-ups released for Windows 10 version 1709 after the major update code-named Redstone 3 but most known as Windows 10 Fall Creators Update.

KB number Version (OS Build) Release date Notes
KB4580328 OS Build 16299.2166 October 13, 2020 Cumulative update
KB4577041 OS Build 16299.2107 September 8, 2020 Cumulative update
KB4571741 OS Build 16299.2045 August 11, 2020 Cumulative update
KB4565508 OS Build 16299.1992 July 14, 2020 Cumulative update
KB4561602 OS Build 16299.1932 June 9, 2020 Cumulative update
KB4556812 OS Build 16299.1868 May 12, 2020 Cumulative update
KB4550927 OS Build 16299.1806 April 14, 2020 Cumulative update
KB4540681 16299.1747 March 10, 2020 Cumulative update
KB4537789 16299.1686 February 11, 2020 Cumulative update
KB4534276 16299.1625 January 14, 2020 Cumulative update
KB4530714 16299.1565 December 10, 2019 Cumulative update
KB4525241 16299.1508 November 12, 2019 Cumulative update
KB4520006 16299.1481 October 15, 2019 Cumulative update
KB4520004 16299.1451 October 8, 2019 Cumulative update
KB4524150 16299.1421 October 3, 2019 Cumulative update
KB4516071 16299.1420 September 24, 2019 Cumulative update
KB4522012 16299.1392 September 23, 2019 Cumulative update
KB4516066 16299.1387 September 10, 2019 Cumulative update
KB4512494 16299.1365 August 16, 2019 Cumulative update
KB4512516 16299.1331 August 13, 2019 Cumulative update
KB4507465 16299.1296 July 16, 2019 Cumulative update
KB4507455 16299.1268 July 9, 2019 Cumulative update
KB4509477 16299.1239 June 26, 2019 Cumulative update
KB4503281 16299.1237 June 18, 2019 Cumulative update
KB4503284 16299.1217 June 11, 2019 Cumulative update
KB4499147 16299.1182 May 28, 2019 Cumulative update
KB4505062 16299.1150 May 19, 2019 Fixes uk.gov website issues
KB4499179 16299.1146 May 14, 2019 Cumulative update
KB4493440 16299.1127 April 25, 2019 Cumulative update
KB4493441 15254.562 April 9, 2019 Cumulative update
KB4489890 16299.1059 March 19, 2019 Cumulative update
KB4489886 16299.1029 March 12, 2019 Solves the “Error 1309” issue
KB4487021 16299.1004 February 19, 2019 Cumulative update
KB4486996 16299.967 February 12, 2019 Cumulative update
KB4480967 16299.936 January 15, 2019 Cumulative update
KB4480978 16299.904 January 8, 2019 Addresses an issue that affects PowerShell
KB4483232 16299.847 December 19, 2018 Security update to Internet Explorer
KB4471329 16299.846 December 11, 2018 Cumulative update
KB4467681 16299.820 November 27, 2018 Cumulative update
KB4467686 16299.785 November 13, 2018 Cumulative update

Windows 10 version 1703 [Creators Update]

Probably the most interesting feature is the launch of Paint 3D and 3D Viewer. Also, Cortana was integrated with third-party apps.

Microsoft service for Home and Pro editions was stopped on October 9, 2018, but will continue for Enterprise and Education editions until October 8, 2019.

Here is the list of monthly roll-ups released for after the major update code-named Redstone 2 aka Windows 10 Creators Update.

KB number Version (OS Build) Release date Notes
KB5000812 OS Build 15063.2679 March 9, 2021 Security Updates
KB4601330 OS Build 15063.2642 February 9, 2021 Security Updates
KB4599208 OS Build 15063.2614 January 12, 2021 Security Update
KB4592473 OS Build 15063.2584 December 8, 2020 Security Update
KB4586782 OS Build 15063.2554 November 10, 2020 Cumulative update
KB4580370 OS Build 15063.2525 October 13, 2020 Cumulative update
KB4577021 OS Build 15063.2500 September 8, 2020 Cumulative update
KB4571689 OS Build 15063.2467 August 11, 2020 Cumulative update
KB4565499 OS Build 15063.2439 July 14, 2020 Cumulative update
KB4561605 OS Build 15063.2409 June 9, 2020 Cumulative update
KB4556804 OS Build 15063.2375 May 12, 2020 Cumulative update
KB4550939 OS Build 15063.2346 April 14, 2020 Cumulative update
KB4540705 OS Build 15063.2313 March 10, 2020 Cumulative update
KB4537765 OS Build 15063.2284 February 11, 2020 Cumulative update
KB4534296 OS Build 15063.2254 January 14, 2020 Cumulative update
KB4530711 15063.2224 December 10, 2019 Cumulative update
KB4525245 15063.2172 November 12, 2019 Cumulative update
KB4520010 15063.2108 October 8, 2019 Cumulative update
KB4524151 15063.2079 October 3, 2019 Cumulative update
KB4516059 15063.2078 September 24, 2019 Cumulative update
KB4516068 15063.2045 September 10, 2019 Cumulative update
KB4512507 15063.1988 August 13, 2019 Cumulative update
KB4507450 15063.1928 July 9, 2019 Cumulative update
KB4503279 15063.1868 June 11, 2019 Cumulative update
KB4499162 15063.1839 May 28, 2019 Cumulative update
KB4505055 15063.1808 May 19, 2019 Fixes uk.gov website issues
KB4499181 15063.1805 May 14, 2019 Cumulative update
KB4502112 15063.1785 May 2, 2019 Cumulative update
KB4493436 15063.1784 April 25, 2019 Cumulative update
KB4493474 15063.1746 April 9, 2019 Cumulative update
KB4489888 15063.1716 March 19, 2019 Cumulative update
KB4489871 15063.1689 March 12, 2019 Fixes “Error 1309”
KB4487011 15063.1659 February 19, 2019 Cumulative update
KB4487020 15063.1631 February 12, 2019 Cumulative update
KB4480959 15063.1596 January 15, 2019 Cumulative update
KB4480973 15063.1563 January 8, 2019 Addresses an issue that affects PowerShell
KB4483230 15063.1508 December 19, 2018 Security update to Internet Explorer
KB4471327 15063.1506 December 11, 2018 Cumulative update
KB4467699 15063.1478 November 27, 2018 Cumulative update

Windows 10 version 1607 [Anniversary Update]

On April 10, 2018, Windows 10, version 1607, reached the end of service in their Home and Pro versions, and on April 9, 2019, it ended support for Enterprise and Education editions.

Still, Microsoft will continue to offer support for Enterprise LTSC editions until October 13, 2026. Microsoft recommends updating to the latest version of Windows 10 to continue receiving security and quality updates.

Among many new features, Microsoft brought a redesigned Start screen and the “all apps” menu was removed.

KB number Version (OS Build) Release date Notes
KB5003197 OS Build 14393.4402 May 11, 2021 Security Update
KB5001347 OS Build 14393.4350 April 13, 2021 Security Update
KB5000803 OS Build 14393.4283 March 9, 2021 Security Updates
KB4601318 OS Build 14393.4225 February 9, 2021 Security Updates
KB4598243 OS Build 14393.4169 January 12, 2021 Security Updates
KB4593226 OS Build 14393.4104 December 8, 2020 Security Updates
KB4586830 OS Build 14393.4046 November 10, 2020 Cumulative update
KB4580346 OS Build 14393.3986 October 13, 2020 Cumulative update
KB4577015 OS Build 14393.3930 September 8, 2020 Cumulative update
KB4571694 OS Build 14393.3866 August 11, 2020 Cumulative update
KB4565511 OS Build 14393.3808 July 14, 2020 Cumulative update
KB4561616 OS Build 14393.3750 June 9, 2020 Cumulative update
KB4556813 OS Build 14393.3686 May 12, 2020 Cumulative update
KB4550929 OS Build 14393.3630 April 14, 2020 Cumulative update
KB4540670 OS Build 14393.3564 March 10,2020 Cumulative update
KB4537764 OS Build 14393.3504 February 11, 2020 Cumulative update
KB4534271 OS Build 14393.3443 January 14, 2020 Cumulative update
KB4530689 14393.3384 December 10, 2019 Cumulative update
KB4525236 14393.3326 November 12, 2019 Cumulative update
KB4519998 14393.3274 October 8, 2019 Cumulative update
KB4516044 14393.3204 September 9, 2019 Cumulative update
KB4512517 14393.3144 August 13, 2019 Cumulative update
KB4507460 14393.3085 July 9, 2019 Cumulative update
KB4503267 14393.3025 June 11, 2019 Cumulative update
KB4499177 14393.2999 May 23, 2019 Cumulative update
KB4505052 14393.2972 May 19, 2019 Fixes an issue with gov.uk websites
KB4494440 14393.2969 May 14, 2019 Cumulative update
KB4493473 14393.2941 April 25, 2019 Cumulative update
KB4493470 14393.2906 April 9, 2019 Cumulative update
KB4489889 14393.2879 March 19, 2019 Cumulative update
KB4489882 14393.2848 March 12, 2019 Cumulative update
KB4487006 14393.2828 February 19, 2019 Cumulative update
KB4487026 14393.2791 February 12, 2019 Cumulative update
KB4480977 14393.2759 January 17, 2019 Cumulative update
KB4480961 14393.2724 January 8, 2019 Security updates to many Microsoft products
KB4483229 14393.2670 December 19, 2018 Security update to Internet Explorer
KB4471321 14393.2665 December 11, 2018 Cumulative update
KB4478877 14393.2641 December 3, 2018 Addresses an issue with SNAT
KB4467684 14393.2639 November 27, 2018 Cumulative update

Windows 10 version 1511

[November Update]

Windows 10 version 1511 was launched on November 12, 2015. It was code-named “Threshold 2” and it was the first major update to the initial Windows 10 version.

On October 10, 2017, Microsoft ended support for Home and Pro editions of Windows 10 version 1511, and on April 10, 2018, it also ended support for Enterprise and Education editions.

Microsoft brought with Windows 10 November Update a pre-installed Skype video, messaging and phone apps.

KB number Version (OS Build) Release date Notes
KB4093109 10586.1540 April 10, 2018 Cumulative update
KB4088779 10586.1478 March 13, 2018 Cumulative update
KB4074591 10586.1417 February 13, 2018 Cumulative update
KB4075200 10586.1358 January 18, 2018 Cumulative update
KB4056888 10586.1356 January 3, 2018 Security updates to several Microsoft products
KB4053578 10586.1295 December 12, 2017 Cumulative update
KB4048952 10586.1232 November 14, 2017 Cumulative update
KB4052232 10586.1177 November 2, 2017 Addresses an issue with several apps
KB4041689 10586.1176 October 10, 2017 Cumulative update
KB4038783 10586.1106 September 12, 2017 Cumulative update
KB4034660 10586.1045 August 8, 2017 Cumulative update
KB4025344 10586.1007 July 11, 2017 Cumulative update
KB4032693 10586.965 June 27, 2017 Addresses a reliability issue in Windows Search
KB4022714 10586.962 June 13, 2017 Cumulative update
KB4019473 10586.916 May 9, 2017 Cumulative update

Windows 10 version 1507

[Initial Release]

Windows 10 version 1507 was the initial release of this operating system. Microsoft launched it on July 29, 2015, and it was code-named “Threshold 1”.

On May 9, 2017, Microsoft ended the support for all editions of Windows 10 version 1507 excepting Enterprise LTSC. Support for this edition will continue until October 14, 2025.

Among so many features, we can say that Windows 10 Initial Release introduced Cortana, the Microsoft virtual assistant.

KB number Version (OS Build) Release date Notes
KB5003172 OS Build 10240.18932 May 11, 2021 Security Update
KB5001340 OS Build 10240.18906 April 13, 2021 Security Update
KB5000807 OS Build 10240.18874 March 9, 2021 Security Updates
KB4601331 OS Build 10240.18842 February 9, 2021 Security Updates
KB4598231 OS Build 10240.18818 January 12, 2021 Security Updates
KB4592464 OS Build 10240.18782 December 8, 2020 Security Updates
KB4586787 OS Build 10240.18756 November 10, 2020 Cumulative update
KB4580327 OS Build 10240.18725 October 13, 2020 Cumulative update
KB4577049 OS Build 19041.508 September 8, 2020 Cumulative update
KB4571692 OS Build 10240.18666 August 11, 2020 Cumulative update
KB4565513 OS Build 10240.18638 July 14, 2020 Cumulative update
KB4561649 OS Build 10240.18608 June 9, 2020 Cumulative update
KB4556826 OS Build 10240.18575 May 12, 2020 Cumulative update
KB4550930 OS Build 10240.18545 April 14, 2020 Cumulative update
KB4540693 OS Build 10240.18519 March 10, 2020 Cumulative update
KB4537776 OS Build 10240.18486 February 11, 2020 Cumulative update
KB4505051 10240.18218 May 19, 2019 Fixes uk.gov website issues
KB4499154 10240.18215 May 14, 2019 Cumulative update
KB4498375 10240.18187 April 25, 2019 Cumulative update
KB4493475 10240.18186 April 9, 2019 Cumulative update
KB4489872 10240.18158 March 12, 2019 Cumulative update
KB4491101 10240.18135 February 21, 2019 Solves an Internet Explorer issue
KB4487018 10240.18132 February 12, 2019 Cumulative update
KB4480962 10240.18094 January 8, 2019 Cumulative update
KB4483228 10240.18064 December 19, 2018 Security update to Internet Explorer
KB4471323 10240.18063 December 11, 2018 Cumulative update
KB4467680 10240.18036 November 13, 2018 Cumulative update
KB4462922 10240.18005 October 9, 2018 Cumulative update
KB4457132 10240.17976 September 11, 2018 Security updates to several Microsoft products
KB4343892 10240.17946 August 14, 2018 Cumulative update
KB4338829 10240.17914 July 10, 2018 Cumulative update


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