Laurenz Albe <laurenz.albe@xxxxxxxxxxx> writes: > We don't have any information about yet undiscovered PostgreSQL bugs. Indeed. > We believe that PostgreSQL 15.2 is a great and stable database, but we are biased. One moderately objective way to see how stable a release branch is is to count how many commits fix bugs in that branch but not any older branch. If a bug would be problematic for you but it also appears in (say) v14 and v13, then choosing to use one of those branches instead of v15 wouldn't have saved you. Also, if a commit goes back that far, it means that the bug escaped detection for multiple years in production, which suggests that it is minor and/or doesn't affect many people. (I hasten to add that we do find some bugs that are both old and serious.) A quick review of commits since 15.2 says that practically all of the ones that don't also affect v14 or before have to do with glitches in new-in-15 features, such as the MERGE command. Which is code you wouldn't be using anyway if your application would be satisfied with an older branch. So I'd judge that 15 is pretty stable at this point, and there is very little reason to prefer any older branch. If you want to do your own analysis along these lines, the gitweb interface isn't especially friendly for comparing commit logs of different branches. I'd suggest using our git_changelog script: git clone https://git.postgresql.org/git/postgresql.git cd postgresql src/tools/git_changelog >../pg-revision-history This produces output that collates matching commits in different branches. regards, tom lane
