REL_18_0
Translation updates
Don't put library-supplied -L/-I switches before user-supplied ones.
Fix bug in archive streamer with LZ4 decompression
Move pg_int64 back to postgres_ext.h
pgxs.mk: remove unreachable rule for deleting regress.def.
Fix indentation in pg_numa code
thread-safety: gmtime_r(), localtime_r()
Fix EPQ crash from missing partition pruning state in EState
Update time zone data files to tzdata release 2025b.
ci: openbsd: Increase RAM disk's size
Doc: simplify the tutorial's window-function examples.
Convert cvsignore to gitignore, and add .gitignore for build targets.
Replace a couple of references to files that no longer exist in the source tree with references to the appropriate URLs.
Remove distprep
Use exported symbols list on macOS for loadable modules as well
Update copyright for 2025