
This is usually desirable but if the app behavior changes dramatically, it could cause much of the fragmentation in older generations (ie, gen2 and LOH) to be unused. When the process is not under high memory pressure it tends to favor doing BGCs over doing full compacting GCs. Addresses a crash due to ElementNotAvailableException in a ListView with custom data-item automation peers. Addresses an issue affecting a DataGrid contained in an outer ScrollViewer.

Before you install this update, see the Prerequisites and Restart requirement sections. We recommend that you apply this update as part of your regular maintenance routines. You will find some visible improvements and new features, but overall you can describe the Windows 10 21H1 update as quite a small one.The Jupdate for Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, and Windows Server, version 20H2, and Windows Version 21H1 includes cumulative reliability improvements in.

Windows 10 21H1 has the same hardware requirements as Windows 10 20H2. However, users who come to 21H1 from versions older than 2004 will experience the full feature upgrade procedure. The same process could be earlier seen for 1903 -> 1909 update, and again for the 2004 -> 20H2 transition. It will quickly get installed over the existing 2004/20H2 instance, like a monthly cumulative update. Also, keep in mind that Microsoft may postpone the release if it find serious bugs. The official release of Windows Update (version 21H1) will take place in the coming weeks, but the exact date is still unknown. After updating to May 2021 Update, you will receive cumulative updates to upgrade the OS to the actual version. The new version of the system will appear after you manually check for updates, but it is up to you to install it or not.

Microsoft also announced that it will not automatically install May 2021 Update for Insiders on the Release Preview channel.
