The symbolic links on docs.spring.io are not updated properly anymore:
21 Jan 11 09:20 2.1.x -> 2.1.12.BUILD-SNAPSHOT
20 Jan 11 09:20 2.1.x-SNAPSHOT -> 2.1.9.BUILD-SNAPSHOT
The 2.2.x seems legit:
13 Jan 11 09:20 2.2.x -> 2.2.2.RELEASE
20 Jan 11 09:20 2.2.x-SNAPSHOT -> 2.2.3.BUILD-SNAPSHOT
2.3.x-SNAPSHOT and current-SNAPSHOT points to the Gradle snapshot so something to look at as well:
Jan 11 09:20 2.3.x-SNAPSHOT -> 2.3.0.GRADLE-SNAPSHOT
Comment From: wilkinsona
The 2.1.x-SNAPSHOT problem looks like an alphabetical rather than numerical comparison of 9 with 10, 11, 12. If so a change to the script on the docs server will probably be needed to fix that one.
The 2.1.x problem is weird. Framework's 5.0.x and 5.1.x symlinks are fine and, AFAIK, they use the same mechanism.
The GRADLE-SNAPSHOT problem is probably because GRADLE is alphabetically after BUILD. Deleting the 2.3.0.GRADLE-SNAPSHOT directory should fix it when the docs are next deployed.
Comment From: snicoll
Good catch. I've fixed those by hand for the time being and removed 2.3.0.GRADLE-SNAPSHOT.
Comment From: wilkinsona
I think this has been fixed as part of the autoln stuff on the docs server being rewritten.