Microsoft has ended support for Windows v1909. This means that no more security updates will be released, leaving these devices vulnerable. The NSW Government mandated that NO out-of-support device can be on state government department networks. On April 8, we made v21H2 available via F12-rebuild. This is a wipe and reload procedure and many schools have already upgraded a significant portion of their Windows fleet of devices. ITD recommends that all student-use devices that are running v1909 be F12-rebuilt as soon as possible. For remaining devices that are still on v1909, we will enable 1909 to 21H2 in-place upgrades from May 31. This should update these devices without the need to wipe all content from them first. The in-place upgrade will silently download, then affected users will see a message saying that the upgrade is ready to install and will need a restart. Please advise them that the actual installation can take up to 60 minutes to complete from that point. It should be understood that some in-place upgrades are expected to fail, usually due to insufficient disk space. The upgrade will roll-back, but will keep retrying. These devices will require an F12-rebuild. Please refer to the link above for more details about the in-place upgrade option.