Patch Tuesday update history for Windows 10 [Changelog]

February 2023 · 18 minute read
Windows 10 Changelog

Patch Tuesday Monthly Releases for Windows 10 versions

  • Windows 10 v1507 (Threshold 1)
  • Windows 10 v1511 (November Update)
  • Windows 10 v1607 (Anniversary Update)
  • Windows 10 v1703 (Creators Update)
  • Windows 10 v1709 (Fall Creators Update)
  • Windows 10 v1803 (April 2018 Update)
  • Windows 10 v1809 (October 2018 Update)
  • Windows 10 v1903 (May 2019 Update)
  • Windows 10 v1909 (November 2019 Update)
  • Windows 10 v2004 (May 2020 Update)
  • Windows 10 v2009 (October 2020 Update)
  • Windows 10 v21H1 (May 2021 Update)
  • Windows 10 version 21H1 [May 2021 Update]

    This operating system version is the latest one yet, and it was released by Microsoft in May 2021.

    Rumors back then were that this version was going to bring a major visual overhaul, which later turned out to be the Sun Valley project, which later transformed into Windows 11.

    KB numberVersion (OS Build)Release DateNotes
    KB5004237OS Builds 19041.1110, 19042.1110, and 19043.1110July 13, 2021Security Updates
    KB5003637OS Builds 19041.1052, 19042.1052, and 19043.1052June 8, 2021Security Updates
    KB5003173OS Builds 19041.985, 19042.985, and 19043.985May 11, 2021Security Updates

    Windows 10 version 2009 (20H20) [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 numberVersion (OS Build)Release dateNotes
    KB5004237OS Builds 19041.1110, 19042.1110, and 19043.1110July 13, 2021Security Updates
    KB5003637OS Builds 19041.1052, 19042.1052, and 19043.1052June 8, 2021Security Updates
    KB5003173OS Builds 19042.985May 11, 2021Security Update
    KB5001330OS Build 19042.928April 13, 2021Security Update
    KB5000802OS Build 19042.867March 9, 2021Security Updates
    KB4601319OS Build 19042.804February 9, 2021Security Updates
    KB4598242OS Build 19042.746January 12, 2021Security Updates
    KB4592438OS Build 19042.685December 8, 2020Security Update
    KB4586781OS Build 19042.630November 10, 2020Security 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 numberVersion (OS Build)Release dateNotes
    KB5004237OS Builds 19041.1110, 19042.1110, and 19043.1110July 13, 2021Security Updates
    KB5003637OS Builds 19041.1052, 19042.1052, and 19043.1052June 8, 2021Security Updates
    KB5003173OS Builds 19041.985May 11, 2021Security Update
    KB5001330OS Build 19041.928April 13, 2021Security Update
    KB5000802OS Builds 19041.868March 9, 2021Security Updates
    KB4601319OS Builds 19041.804February 9, 2021Security Updates
    KB4598242OS Build 19041.746January 12, 2021Security Updates
    KB4592438OS Build 19041.685December 8, 2020Security Updates
    KB4586781OS Build 19041.630November 10, 2020Security Updates
    KB4577063OS Build 19041.572October 13, 2020Security Updates
    KB4566782OS Build 19041.546September 8, 2020Security Updates
    KB4566782OS Build 19041.450August 11, 2020Security Updates
    KB4565503OS Build 19041.388July 14, 2020Security Updates
    KB4557957OS Build 19041.329June 9 , 2020Cumulative 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 numberVersion (OS Build)Release dateNotes
    KB5004245OS Build 18363.1679July 13, 2021Security Updates
    KB5003635OS Build 18363.1621June 8, 2021Security Updates
    KB5003169OS Build 18363.1556May 11, 2021Security Update
    KB5001337OS Build 18363.1500April 13, 2021Security Update
    KB5000822OS Build 17763.1817March 9, 2021Security Updates
    KB4601315OS Build 18363.1377February 9, 2021Security Updates
    KB4598229OS Build 18363.1316January 12, 2021Security Updates
    KB4592449OS Build 18363.1256December 8, 2020Security update
    KB4586786OS Build 18363.1198November 10, 2020Security update
    KB4577671OS Build 18363.1139October 13, 2020Security update
    KB4574727OS Build 18363.1082September 8, 2020Security update
    KB4565351OS Build 18363.1016August 11, 2020Security update
    KB4565483OS Build 18363.959July 14, 2020Security update
    KB4560960OS Build 18363.900June 9, 2020Security update
    KB4556799OS Build 18363.836May 12, 2020Security update
    KB4549951OS Build 18363.778April 14, 2020Security update
    KB4540673OS Build 18363.719March 10, 2020Security update
    KB4532693OS Build 18363.657February 11, 2020Security update
    KB4528760OS Build 18363.592January 14, 2020Security update
    KB4530684OS Build 18363.535December 10, 2019Security 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 numberVersion (OS Build)Release dateNotes
    KB4592449OS Build 18362.1256December 8, 2020Security update
    KB4586786OS Build 18362.1198November 10, 2020Security update
    KB4577671OS Build 18362.1139October 13, 2020Security update
    KB4574727OS Build 18362.1082September 8, 2020Security update
    KB4565351OS Build 18362.1016August 11, 2020Security update
    KB4565483OS Build 18362.959July 14, 2020Security update
    KB4560960OS Build 18362.900June 9, 2020Security update
    KB4551853OS Build 18362.836May 12, 2020Security update
    KB4549951OS Builds 18362.778April 14, 2020Security update
    KB4540673OS Build 18362.719March 10, 2020Security update
    KB4532693OS Build 18362.657February 11, 2020Security update
    KB4528760OS Build 18362.592January 14, 2020Security update
    KB4530684OS Build 18363.535December 10, 2019Security update KB4524570
    KB4524570OS Build 18362.476November 12, 2019Security update KB4524570
    KB4522355OS Build 18362.418October 24, 2019Security update for Slow Ring Insiders quality improvements
    KB4517389OS Build 18362.418October 8, 2019security update, includes quality quality improvements
    KB4515384OS Build 18362.356September 10, 2019security update
    KB4512508OS Build 18362.295August 13, 2019security update
    KB4507453OS Build 18362.239July 9, 2019Patch Tuesday
    KB4501375OS Build 18362.207June 27, 2019Cumulative update
    KB450329318362.175June 11, 2019Patch Tuesday
    KB449793518362.145May 24, 2019Insider-only
    KB450505718362.116May 19, 2019Insider-only
    KB449793618362.113May 14, 2019Insider-only
    KB449709318362.86April 26, 2019Insider-only
    KB449566618362.53April 9, 2019Insider-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 numberVersionRelease dateNotes
    KB5004244OS Build 17763.2061July 13, 2021Security Updates
    KB5003646OS Build 17763.1999June 8, 2021Security Updates
    KB5003171OS Build 17763.1935May 11, 2021Security Update
    KB5001342OS Build 17763.1879April 13, 2021Security Update
    KB5000808OS Build 18363.1440March 9, 2021Security Updates
    KB4601345OS Build 17763.1757February 9, 2021Security Updates
    KB4598230OS Build 17763.1697January 12, 2021Security Updates
    KB4592440OS Build 17763.1637December 8, 2020Security update
    KB4586793OS Build 17763.1577November 10, 2020Security update
    KB4577668OS Build 17763.1518October 13, 2020Security update
    KB4570333OS Build 17763.1457September 8, 2020Security update
    KB4565349OS Build 17763.1397August 11, 2020Security update
    KB4558998OS Build 17763.1339July 14, 2020Security update
    KB4561608OS Build 17763.1282June 9, 2020Security update
    KB4551853OS Build 17763.1217May 12, 2020Security update
    KB4549949OS Build 17763.1158April 14, 2020Security update
    KB4538461OS Build 17763.1039March 10, 2020Security update
    KB4532691OS Build 17763.1039February 11, 2020security update
    KB4534273OS Build 17763.973January 14, 2020security update
    KB4530715OS Build 17763.914December 10, 2019security update
    KB4523205OS Build 17763.864November 12, 2019security update
    KB4520062OS Build 17763.832October 15, 2019security update
    KB4519338OS Build 17763.805October 8, 2019security update
    KB4512578OS Build 17763.737September 10, 2019security update
    KB4511553OS Build 17763.678August 13, 2019security update
    KB4507469OS Build 17763.615July 9, 2019Patch Tuesday
    KB4509479OS Build 17763.593June 26, 2019Cumulative update
    KB4501371OS Build 17763.592June 18, 2019Cumulative update
    KB4503327OS Build 17763.557June 11, 2019Patch Tuesday
    KB4497934OS Build 17763.529May 21, 2019Cumulative update
    KB4505057OS Build 17763.504May 19, 2019Fixes uk.gov website issues
    KB4494441OS Build 17763.503May 14, 2019Patch Tuesday
    KB450183517763.439May 1, 2019Cumulative update
    KB449350917763.437April 9, 2019Patch Tuesday
    KB449048117763.404April 2, 2019Cumulative update
    KB448989917763.379March 12, 2019Patch Tuesday
    KB448288717763.348March 1, 2019Cumulative update
    KB448704417763.316February 12, 2019Patch Tuesday
    KB448011617763.253January 8, 2019Cumulative update
    KB448323517763.195December 19, 2018Security update to Internet Explorer
    KB447133217763.194December 11, 2018Patch Tuesday
    KB446934217763.168December 5, 2018Cumulative update
    KB446768217763.167November 27, 2018Cumulative update
    KB446770817763.134November 13, 2018Patch 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 numberVersion (OS Build)Release dateNotes
    KB5003174OS Build 17134.2208May 11, 2021Security Update
    KB5001339OS Build 17134.2145April 13, 2021Security Update
    KB5000809OS Build 17134.2087March 9, 2021Security Updates
    KB4601354OS Build 17134.2026February 9, 2021Security Updates
    KB4598245OS Build 17134.1967January 12, 2021Security update
    KB4592446OS Build 17134.1902December 8, 2020Security update
    KB4586785OS Build 17134.1845November 10, 2020Security update
    KB4580330OS Build 17134.1792October 13, 2020Security update
    KB4577032OS Build 17134.1726September 8, 2020Security update
    KB4571709OS Build 17134.1667August 11, 2020Security update
    KB4565489OS Build 17134.1610July 14, 2020Security update
    KB4561621OS Build 17134.1550June 9, 2020Security update
    KB4556807OS Build 17134.1488May 12, 2020Security update
    KB4550922OS Build 17134.1425April 14, 2020Security update
    KB4540689OS Build 17134.1365March 10, 2020Security update
    KB4537762OS Build 17134.1304February 11, 2020security update
    KB4534293OS Build 17134.1246January 14, 2020security update
    KB453071717134.1184December 10, 2019security update
    KB452523717134.1130November 12, 2019security update
    KB451997817134.1099October 15, 2019security update
    KB452000817134.1069October 8, 2019security update
    KB451605817134.1006September 10, 2019security update
    KB451250117134.950August 13, 2019security update
    KB450743517134.885July 9, 2019Patch Tuesday
    KB450947817134.860June 26, 2019Cumulative update
    KB450328817134.858June 18, 2019Cumulative update
    KB450328617134.829June 11, 2019Patch Tuesday
    KB449918317134.799May 21, 2019Cumulative update
    KB450506417134.766May 19, 2019Fixes uk.gov website issues
    KB449916717134.765May 14, 2019Patch Tuesday
    KB449343717134.753April 26, 2019Cumulative update
    KB449346417134.706April 9, 2019Patch Tuesday
    KB448989417134.677March 19, 2019Patch Tuesday
    KB448986817134.648March 12, 2019Patch Tuesday
    KB448699617134.619February 19, 2019Cumulative update
    KB448701717134.590February 12, 2019Patch Tuesday
    KB448097617134.556January 15, 2019Cumulative update
    KB448096617134.523January 8, 2019Patch Tuesday
    KB448323417134.472December 19, 2018Security update to Internet Explorer
    KB447132417134.471December 11, 2018Patch Tuesday
    KB446768217134.441November 27, 2018Cumulative update
    KB446770217134.407November 13, 2018Patch 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 numberVersion (OS Build)Release dateNotes
    KB4580328OS Build 16299.2166October 13, 2020Cumulative update
    KB4577041OS Build 16299.2107September 8, 2020Cumulative update
    KB4571741OS Build 16299.2045August 11, 2020Cumulative update
    KB4565508OS Build 16299.1992July 14, 2020Cumulative update
    KB4561602OS Build 16299.1932June 9, 2020Cumulative update
    KB4556812OS Build 16299.1868May 12, 2020Cumulative update
    KB4550927OS Build 16299.1806April 14, 2020Cumulative update
    KB454068116299.1747March 10, 2020Cumulative update
    KB453778916299.1686February 11, 2020Cumulative update
    KB453427616299.1625January 14, 2020Cumulative update
    KB453071416299.1565December 10, 2019Cumulative update
    KB452524116299.1508November 12, 2019Cumulative update
    KB452000616299.1481October 15, 2019Cumulative update
    KB452000416299.1451October 8, 2019Cumulative update
    KB452415016299.1421October 3, 2019Cumulative update
    KB451607116299.1420September 24, 2019Cumulative update
    KB452201216299.1392September 23, 2019Cumulative update
    KB451606616299.1387September 10, 2019Cumulative update
    KB451249416299.1365August 16, 2019Cumulative update
    KB451251616299.1331August 13, 2019Cumulative update
    KB450746516299.1296July 16, 2019Cumulative update
    KB450745516299.1268July 9, 2019Cumulative update
    KB450947716299.1239June 26, 2019Cumulative update
    KB450328116299.1237June 18, 2019Cumulative update
    KB450328416299.1217June 11, 2019Cumulative update
    KB449914716299.1182May 28, 2019Cumulative update
    KB450506216299.1150May 19, 2019Fixes uk.gov website issues
    KB449917916299.1146May 14, 2019Cumulative update
    KB449344016299.1127April 25, 2019Cumulative update
    KB449344115254.562April 9, 2019Cumulative update
    KB448989016299.1059March 19, 2019Cumulative update
    KB448988616299.1029March 12, 2019Solves the “Error 1309” issue
    KB448702116299.1004February 19, 2019Cumulative update
    KB448699616299.967February 12, 2019Cumulative update
    KB448096716299.936January 15, 2019Cumulative update
    KB448097816299.904January 8, 2019Addresses an issue that affects PowerShell
    KB448323216299.847December 19, 2018Security update to Internet Explorer
    KB447132916299.846December 11, 2018Cumulative update
    KB446768116299.820November 27, 2018Cumulative update
    KB446768616299.785November 13, 2018Cumulative 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 numberVersion (OS Build)Release dateNotes
    KB5000812OS Build 15063.2679March 9, 2021Security Updates
    KB4601330OS Build 15063.2642February 9, 2021Security Updates
    KB4599208OS Build 15063.2614January 12, 2021Security Update
    KB4592473OS Build 15063.2584December 8, 2020Security Update
    KB4586782OS Build 15063.2554November 10, 2020Cumulative update
    KB4580370OS Build 15063.2525October 13, 2020Cumulative update
    KB4577021OS Build 15063.2500September 8, 2020Cumulative update
    KB4571689OS Build 15063.2467August 11, 2020Cumulative update
    KB4565499OS Build 15063.2439July 14, 2020Cumulative update
    KB4561605OS Build 15063.2409June 9, 2020Cumulative update
    KB4556804OS Build 15063.2375May 12, 2020Cumulative update
    KB4550939OS Build 15063.2346April 14, 2020Cumulative update
    KB4540705OS Build 15063.2313March 10, 2020Cumulative update
    KB4537765OS Build 15063.2284February 11, 2020Cumulative update
    KB4534296OS Build 15063.2254January 14, 2020Cumulative update
    KB453071115063.2224December 10, 2019Cumulative update
    KB452524515063.2172November 12, 2019Cumulative update
    KB452001015063.2108October 8, 2019Cumulative update
    KB452415115063.2079October 3, 2019Cumulative update
    KB451605915063.2078September 24, 2019Cumulative update
    KB451606815063.2045September 10, 2019Cumulative update
    KB451250715063.1988August 13, 2019Cumulative update
    KB450745015063.1928July 9, 2019Cumulative update
    KB450327915063.1868June 11, 2019Cumulative update
    KB449916215063.1839May 28, 2019Cumulative update
    KB450505515063.1808May 19, 2019Fixes uk.gov website issues
    KB449918115063.1805May 14, 2019Cumulative update
    KB450211215063.1785May 2, 2019Cumulative update
    KB449343615063.1784April 25, 2019Cumulative update
    KB449347415063.1746April 9, 2019Cumulative update
    KB448988815063.1716March 19, 2019Cumulative update
    KB448987115063.1689March 12, 2019Fixes “Error 1309”
    KB448701115063.1659February 19, 2019Cumulative update
    KB448702015063.1631February 12, 2019Cumulative update
    KB448095915063.1596January 15, 2019Cumulative update
    KB448097315063.1563January 8, 2019Addresses an issue that affects PowerShell
    KB448323015063.1508December 19, 2018Security update to Internet Explorer
    KB447132715063.1506December 11, 2018Cumulative update
    KB446769915063.1478November 27, 2018Cumulative 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 numberVersion (OS Build)Release dateNotes
    KB5004238OS Build 14393.4530July 13, 2021Security Updates
    KB5003638OS Build 14393.4467June 8, 2021Security Updates
    KB5003197OS Build 14393.4402May 11, 2021Security Update
    KB5001347OS Build 14393.4350April 13, 2021Security Update
    KB5000803OS Build 14393.4283March 9, 2021Security Updates
    KB4601318OS Build 14393.4225February 9, 2021Security Updates
    KB4598243OS Build 14393.4169January 12, 2021Security Updates
    KB4593226OS Build 14393.4104December 8, 2020Security Updates
    KB4586830OS Build 14393.4046November 10, 2020Cumulative update
    KB4580346OS Build 14393.3986October 13, 2020Cumulative update
    KB4577015OS Build 14393.3930September 8, 2020Cumulative update
    KB4571694OS Build 14393.3866August 11, 2020Cumulative update
    KB4565511OS Build 14393.3808July 14, 2020Cumulative update
    KB4561616OS Build 14393.3750June 9, 2020Cumulative update
    KB4556813OS Build 14393.3686May 12, 2020Cumulative update
    KB4550929OS Build 14393.3630April 14, 2020Cumulative update
    KB4540670OS Build 14393.3564March 10,2020Cumulative update
    KB4537764OS Build 14393.3504February 11, 2020Cumulative update
    KB4534271OS Build 14393.3443January 14, 2020Cumulative update
    KB453068914393.3384December 10, 2019Cumulative update
    KB452523614393.3326November 12, 2019Cumulative update
    KB451999814393.3274October 8, 2019Cumulative update
    KB451604414393.3204September 9, 2019Cumulative update
    KB451251714393.3144August 13, 2019Cumulative update
    KB450746014393.3085July 9, 2019Cumulative update
    KB450326714393.3025June 11, 2019Cumulative update
    KB449917714393.2999May 23, 2019Cumulative update
    KB450505214393.2972May 19, 2019Fixes an issue with gov.uk websites
    KB449444014393.2969May 14, 2019Cumulative update
    KB449347314393.2941April 25, 2019Cumulative update
    KB449347014393.2906April 9, 2019Cumulative update
    KB448988914393.2879March 19, 2019Cumulative update
    KB448988214393.2848March 12, 2019Cumulative update
    KB448700614393.2828February 19, 2019Cumulative update
    KB448702614393.2791February 12, 2019Cumulative update
    KB448097714393.2759January 17, 2019Cumulative update
    KB448096114393.2724January 8, 2019Security updates to many Microsoft products
    KB448322914393.2670December 19, 2018Security update to Internet Explorer
    KB447132114393.2665December 11, 2018Cumulative update
    KB447887714393.2641December 3, 2018Addresses an issue with SNAT
    KB446768414393.2639November 27, 2018Cumulative 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 numberVersion (OS Build)Release dateNotes
    KB409310910586.1540April 10, 2018Cumulative update
    KB408877910586.1478March 13, 2018Cumulative update
    KB407459110586.1417February 13, 2018Cumulative update
    KB407520010586.1358January 18, 2018Cumulative update
    KB405688810586.1356January 3, 2018Security updates to several Microsoft products
    KB405357810586.1295December 12, 2017Cumulative update
    KB404895210586.1232November 14, 2017Cumulative update
    KB405223210586.1177November 2, 2017Addresses an issue with several apps
    KB404168910586.1176October 10, 2017Cumulative update
    KB403878310586.1106September 12, 2017Cumulative update
    KB403466010586.1045August 8, 2017Cumulative update
    KB402534410586.1007July 11, 2017Cumulative update
    KB403269310586.965June 27, 2017Addresses a reliability issue in Windows Search
    KB402271410586.962June 13, 2017Cumulative update
    KB401947310586.916May 9, 2017Cumulative 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 numberVersion (OS Build)Release dateNotes
    KB5003172OS Build 10240.18932May 11, 2021Security Update
    KB5001340OS Build 10240.18906April 13, 2021Security Update
    KB5000807OS Build 10240.18874March 9, 2021Security Updates
    KB4601331OS Build 10240.18842February 9, 2021Security Updates
    KB4598231OS Build 10240.18818January 12, 2021Security Updates
    KB4592464OS Build 10240.18782December 8, 2020Security Updates
    KB4586787OS Build 10240.18756November 10, 2020Cumulative update
    KB4580327OS Build 10240.18725October 13, 2020Cumulative update
    KB4577049OS Build 19041.508September 8, 2020Cumulative update
    KB4571692OS Build 10240.18666August 11, 2020Cumulative update
    KB4565513OS Build 10240.18638July 14, 2020Cumulative update
    KB4561649OS Build 10240.18608June 9, 2020Cumulative update
    KB4556826OS Build 10240.18575May 12, 2020Cumulative update
    KB4550930OS Build 10240.18545April 14, 2020Cumulative update
    KB4540693OS Build 10240.18519March 10, 2020Cumulative update
    KB4537776OS Build 10240.18486February 11, 2020Cumulative update
    KB450505110240.18218May 19, 2019Fixes uk.gov website issues
    KB449915410240.18215May 14, 2019Cumulative update
    KB449837510240.18187April 25, 2019Cumulative update
    KB449347510240.18186April 9, 2019Cumulative update
    KB448987210240.18158March 12, 2019Cumulative update
    KB449110110240.18135February 21, 2019Solves an Internet Explorer issue
    KB448701810240.18132February 12, 2019Cumulative update
    KB448096210240.18094January 8, 2019Cumulative update
    KB448322810240.18064December 19, 2018Security update to Internet Explorer
    KB447132310240.18063December 11, 2018Cumulative update
    KB446768010240.18036November 13, 2018Cumulative update
    KB446292210240.18005October 9, 2018Cumulative update
    KB445713210240.17976September 11, 2018Security updates to several Microsoft products
    KB434389210240.17946August 14, 2018Cumulative update
    KB433882910240.17914July 10, 2018Cumulative update

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