Comment 7 for bug 1966506

Although psql -V command shows 14 version, but if I check psql version from within database I am getting another result:

1) sudo -u postgres psql

psql (14.5 (Ubuntu 14.5-0ubuntu0.22.04.1), server 10.22 (Ubuntu 10.22-0ubuntu0.18.04.1))
Type "help" for help.

2) SELECT version();
PostgreSQL 10.22 (Ubuntu 10.22-0ubuntu0.18.04.1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, 64-bit

Can the author of this post tell us how did he upgraded psql version?