PostgreSQL won't take new timezone
PostgreSQL can be built to either use the operating system's time zone database or its own.  Check with the command pg_config --configure whether the option --with-system-tzdata was used.  If not, it is using its own time zone data, and that hasn't been updated yet.  If so, to fix, either wait for the next releases, or install the packages the way you have installed it on the other hosts.