They just made a typo.
That does not seem to be the case because the history also displays "Successfully installed on 10/27/2020" which is the date of 20H2.
Windows 10 May 2021 update now available
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Anonymous
The first major update to Windows 10 of the year, called Windows 10 May 2021 update is now available.
How to get the Windows 10 May 2021 Update
How to get the Windows 10 May 2021 Update | Windows Experience Blog
Windows 10 21H1 Release Health.
Windows 10, version 21H1 | Microsoft Docs
IT tools to support Windows 10, version 21H1
IT tools to support Windows 10, version 21H1 - Microsoft Tech Community
KB5000736: Featured update to Windows 10, version 21H1 by using an enablement package
From the Blog:
In the current environment, we know that you continue to rely on your PCs more than ever. As a result, we are initially taking a measured seeker-based approach to the rollout of the May 2021 Update. We are throttling availability up over the coming weeks to ensure a reliable download experience for all, so the update may not be offered to you right away. Additionally, some devices might have a compatibility issue for which a safeguard hold is in place. In these cases, we will not offer the update until we are confident that you will have a good update experience.
Windows for home | Windows 10 | Windows update
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Anonymous
2021-05-28T05:17:14+00:00 -
Anonymous
2021-05-28T05:25:29+00:00 This means that they also used the 20H2 notice also.
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Anonymous
2021-05-28T08:58:52+00:00 Roll Back looks promising. Thanks for sharing. I've downloaded and installed the Freeware version as the Pro versions seem to be available only for Educational purposes (Schools etc). Cheers
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Anonymous
2021-05-28T10:36:27+00:00 This update literally killed my PC. Installed pending updates last night, only to wake up to a laptop with boot issues. It won't load up.
Tried using command prompt to identify any issues and fix them, but in vain.
Windows sucks big time.
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Anonymous
2021-05-28T11:17:48+00:00 My laptop is now unusable after updating to 21H1 on 25/5 2021. Fingerprint and password logins not working. Corrupt? I have tried many suggestions to enter/reset/repair OS. But keeps asking for Admin password, which it will not accept.