What I find interesting about the 2025 comment is I thought MS was discontinuing any further updates for OS's that only used SHA-1 support as all updates for newer OS's are only signed with SHA-2? If this is the case, then there must be an update for Windows XP to allow it to receive any future SHA-2 updates. I'm with you though, I too would dearly love to get my hands on this and all Windows XP updates that have been issued since April 2019. I'm guessing that's the reason why he posted anonymously.
As for 0patch, thanks for the clarification. I'm still trying to figure it all out but, this aside, it certainly is one of the most useful security-minded programs to come along to help us all stay protected.