Windows 10 update history

Windows 10, version 1909 and Windows Server, version 1909

Updates for Windows 10, version 1909 and Windows Server, version 1909

Windows 10 is a service, which means it gets better through periodic software updates.

The great news is you usually don’t have to do anything! If you have enabled automatic updates, new updates will automatically download and install whenever they’re available, so you don’t have to think about it.

On the left side of this page, you’ll find a list of all the updates released for this version of Windows. You can also find more information about releases and any known issues. Installing the most recent update ensures that you also get any previous updates you might have missed, including any important security fixes.

For more information about the update and how to get it, see:

What’s new for Windows 10, version 1909 and Windows 10, version 1903 release notes

Windows 10, versions 1903 and 1909 share a common core operating system and an identical set of system files. As a result, the new features in Windows 10, version 1909 were included in the recent monthly quality update for Windows 10, version 1903 (released October 8, 2019), but are currently in a dormant state. These new features will remain dormant until they are turned on using an enablement package, which is a small, quick-to-install “master switch” that simply activates the Windows 10, version 1909 features.

To reflect this change, the release notes for Windows 10, version 1903 and Windows 10, version 1909 will share an update history page. Each release page will contain a list of addressed issues for both 1903 and 1909 versions. Note that the 1909 version will always contain the fixes for 1903; however, 1903 will not contain the fixes for 1909. This page will provide you with the build numbers for both 1909 and 1903 versions so that it will be easier for support to assist you if you encounter issues.

For more details about the enablement package and how to get the feature update, see the Windows 10, version 1909 delivery options blog.

Current status of Windows 10, version 1909 and Windows Server, version 1909

For the most up-to-date information about Known Issues for Windows and Windows Server, please go to the Windows release health dashboard.

Notes and messages

General

IMPORTANT Release notes are changing! To learn about the new URL, metadata updates, and more, see What’s next for Windows release notes.

IMPORTANT Starting in July 2020, we will resume non-security releases for Windows 10 and Windows Server, version 1809 and later. There is no change to the cumulative monthly security updates (also referred to as the «B» release or Update Tuesday release). For more information, see the blog post Resuming optional Windows 10 and Windows Server non-security monthly updates.

IMPORTANT Starting in July 2020, all Windows Updates will disable the RemoteFX vGPU feature because of a security vulnerability. For more information about the vulnerability, seeCVE-2020-1036 and KB4570006. After you install this update, attempts to start virtual machines (VM) that have RemoteFX vGPU enabled will fail, and messages such as the following will appear:

If you re-enable RemoteFX vGPU, a message similar to the following will appear:

“The virtual machine cannot be started because all the RemoteFX-capable GPUs are disabled in Hyper-V Manager.”

“The virtual machine cannot be started because the server has insufficient GPU resources.”

«We no longer support the RemoteFX 3D video adapter. If you are still using this adapter, you may become vulnerable to security risk. Learn more (https://go.microsoft.com/fwlink/?linkid=2131976)”

What’s new for Windows 10, version 1909 and Windows 10, version 1903 release notes

Windows 10, versions 1903 and 1909 share a common core operating system and an identical set of system files. As a result, the new features in Windows 10, version 1909 were included in the recent monthly quality update for Windows 10, version 1903 (released October 8, 2019), but are currently in a dormant state. These new features will remain dormant until they are turned on using an enablement package, which is a small, quick-to-install “master switch” that simply activates the Windows 10, version 1909 features.

To reflect this change, the release notes for Windows 10, version 1903 and Windows 10, version 1909 will share an update history page. Each release page will contain a list of addressed issues for both 1903 and 1909 versions. Note that the 1909 version will always contain the fixes for 1903; however, 1903 will not contain the fixes for 1909. This page will provide you with the build numbers for both 1909 and 1903 versions so that it will be easier for support to assist you if you encounter issues.

For more details about the enablement package and how to get the feature update, see the Windows 10, version 1909 delivery options blog.

Troubleshooting

If you have questions or need help activating or troubleshooting Windows, see our help topics below:

For information about how to update, see Update Windows 10.

If you have questions about manually installing or removing an update, see Windows Update: FAQ.

Getting an error message when updating? See Troubleshoot problems updating Windows 10.

If you need to activate Windows, see Activation in Windows 10. If you’re having trouble with activation, see Get help with Windows activation errors.

To get the latest major update to Windows 10, see Get the Windows 10 November 2019 Update.

Windows Version Numbers

A list of Windows version numbers & major Windows builds

Each Microsoft Windows operating system has a familiar name, like Windows 10 or Windows Vista, but behind each common name is an actual Windows version number 1 .

You can determine your Windows version a number of ways if you want to check which build number you’re currently running.

Windows Version Numbers

Below is a list of major Windows versions and their associated version numbers:

Reference Table for Windows Version Numbers
Operating System	Version Details	Version Number
Windows 10	Windows 10 (20H2)	10.0.19042
Windows 10 (2004)	10.0.19041
Windows 10 (1909)	10.0.18363
Windows 10 (1903)	10.0.18362
Windows 10 (1809)	10.0.17763
Windows 10 (1803)	10.0.17134
Windows 10 (1709)	10.0.16299
Windows 10 (1703)	10.0.15063
Windows 10 (1607)	10.0.14393
Windows 10 (1511)	10.0.10586
Windows 10	10.0.10240
Windows 8	Windows 8.1 (Update 1)	6.3.9600
Windows 8.1	6.3.9200
Windows 8	6.2.9200
Windows 7	Windows 7 SP1	6.1.7601
Windows 7	6.1.7600
Windows Vista	Windows Vista SP2	6.0.6002
Windows Vista SP1	6.0.6001
Windows Vista	6.0.6000
Windows XP	Windows XP 2	5.1.2600 3

_{[1] More specific than a version number, at least in Windows, is a build number, often indicating exactly what major update or service pack has been applied to that Windows version. This is the last number shown in the version number column, like 7600 for Windows 7. Some sources note the build number in parenthesis, like 6.1 (7600).}

_{[2] Windows XP Professional 64-bit had its own version number of 5.2. As far as we know, that’s the only time Microsoft has designated a special version number for a specific edition and architecture-type of a Windows operating system.}

_{[3] Service pack updates to Windows XP did update the build number but in a very minor and long-winded way. For example, Windows XP with SP3 and other small updates is listed as having a version number of 5.1 (Build 2600.xpsp_sp3_qfe.130704-0421 : Service Pack 3).}

How to Update Windows

To update Windows to the newest build number, use Windows Update. Using the built-in Windows Update utility is the easiest way to check for and install Windows updates.

If your version of Windows isn’t currently set up to install updates automatically, you can change the Windows Update settings so that new updates are downloaded and applied automatically. This is the simplest way to keep Windows updated to the latest version number.

Major Changes in Windows 10

Microsoft introduced several changes to the Windows operating system with the release of Windows 10. These are some of the biggest differences between Windows 10 and Windows 8 (and older versions of Windows):

Windows 10 version history

Windows 10 is an operating system developed by Microsoft. Microsoft described Windows 10 as an operating system as a service that would receive ongoing updates to its features and functionality, augmented with the ability for enterprise environments to receive non-critical updates at a slower pace, or use long-term support milestones that will only receive critical updates, such as security patches, over their five-year lifespan of mainstream support. Terry Myerson, executive vice president of Microsoft’s Windows and Devices Group, argued that the goal of this model was to reduce fragmentation across the Windows platform.

Contents

PC version history

Version 1507 (RTM)

Windows 10 Version 1507 (build 10.0.10240), codenamed «Threshold 1«, is the first release of Windows 10. It carries the build number 10.0.10240; while Microsoft has stated that there was no designated «RTM» build of Windows 10, 10240 has been described as an RTM build by various media outlets. It has been retroactively named «version 1507» by Microsoft per its naming conventions for future stable releases of the operating system. The final release was made available to Windows Insiders on July 15, 2015, followed by a public release on July 29, 2015. As of August 2, 2016, the Threshold 1 release is the only available release in Long Term Servicing Branch (LTSB). Support of version 1507 ended on May 9, 2017.

Version 1511 (November Update)

Windows 10 November Update, or Windows 10 Version 1511 (build 10.0.10586), codenamed «Threshold 2«, is the first major update to Windows 10. It carries the build number 10.0.10586 and version 1511, referencing its date of release, November 2015. The first preview was released on August 18, 2015. The final release was made available to Windows Insiders on November 3, 2015, followed by a public release on November 12, 2015 to existing Windows 10 users, and as a free upgrade from Windows 7 and Windows 8.1. Unlike the initial release of Windows, this branch was also made available to existing Windows Phone 8.1-devices and the Xbox One and as a preview release to Windows Server 2016 and was pre-installed on new Windows 10 Mobile-devices like the Microsoft Lumia 950. The Threshold 2 release of Windows 10 is supported for users of the Current Branch for Business (CBB).

Version 1607 (Anniversary Update)

Windows 10 Anniversary Update, or Windows 10 Version 1607 (build 10.0.14393), codenamed «Redstone 1«, is the second major update to Windows 10 and the first of the 4 major updates planned under the Redstone codenames. It carries the build number 10.0.14393 and version 1607. The first preview was released on December 16, 2015. It was released to the public on August 2, 2016. The Redstone 1 release of Windows 10 is supported for users of the Current Branch (CB) and Long-Term Support Branch (LTSB)

Version 1703 (Creators Update)

Windows 10 Creators Update, (or Windows 10 Version 1703, codenamed «Redstone 2«, build 10.0.15063), is the third major update to Windows 10 and the second of the 4 major updates planned under the Redstone codenames. The first preview was released to Insiders on August 11, 2016.

Version 1709 (Fall Creators Update)

Windows 10 Fall Creators Update (also known as version 1709 and codenamed «Redstone 3», build 10.0.16299) is the fourth major update to Windows 10 and the third in a series of updates under the Redstone codenames. The first preview was released to Insiders on April 7, 2017. The final release was made available to Windows Insiders on September 26, 2017 before being released to the public on October 17.

Version 1803 (April 2018 Update)

Windows 10 April 2018 Update (also known as version 1803 and codenamed «Redstone 4», build 10.0.17134) is the fifth major update to Windows 10 and the fourth in a series of updates under the Redstone codenames. The first preview was released to Insiders on August 31, 2017. The final release was made available to Windows Insiders on April 16, 2018, followed by a public release on April 30, and began to roll out on May 8.

Version 1809 (October 2018 Update)

Windows 10 October 2018 Update (also known as version 1809 and codenamed «Redstone 5», build 10.0.17763) is the sixth major update to Windows 10 and the fifth in a series of updates under the Redstone codenames. The first preview was released to Insiders on February 14, 2018. The update was originally made available to public consumers on October 2, 2018, but its rollout was halted on October 6, 2018, due to a serious bug that deletes users’ personal files after updating. On October 9, 2018, Microsoft re-released the update to Insiders, stating that all known issues in the update (including file deletion bug) had been identified and fixed. On October 25, 2018, Microsoft confirmed the existence of another bug that overwrites files without any confirmation, when extracting from a ZIP file. The ZIP bug was fixed for Insiders on October 30, 2018, and the public rollout of the update resumed on November 13, 2018.

Version 1903 (May 2019 Update)

Windows 10 May 2019 Update (also known as version 1903 and codenamed «19H1», build 10.0.18362) is the seventh major update to Windows 10 and the first to use a more descriptive codename (including the year and the order released) instead of the «Redstone» or «Threshold» codename. The first preview was released to Insiders who opted into the exclusive Skip Ahead ring on July 25, 2018. The update began rolling out on May 21, 2019. Notable changes in the May 2019 Update include:

• A new «light theme«
• Separation of Search and Cortana in the taskbar
• Windows Sandbox (not available in Windows 10 Home)

Version 1909 (November 2019 Update)

Windows 10 version 1909, codenamed «19H2», build 10.0.18363, is the eighth major update to Windows 10 and the second to use a more descriptive codename. The update is intended to be delivered as a cumulative update to the May 2019 Update. The first preview was released to Insiders who opted into the slow ring on July 1, 2019.

Version 2004 (May 2020 Update)

Windows 10 version 2004, codenamed «20H1», build 10.0.19041, is the ninth major update to Windows 10. The update began rolling out on May 27, 2020. Notable changes include:

1. Faster and easier access to Bluetooth settings and pairing
2. Improved Kaomojis
3. Virtual Desktops are now renamable
4. DirectX12 Ultimate improves graphics
5. Introducing a chat-based UI for Cortana