23rd September 2021: PostgreSQL 14 RC 1 Released!
Supported Versions: Current (13) / 12 / 11 / 10
Development Versions: 14 / devel
This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the current version, or one of the other supported versions listed above instead.

Appendix O. Obsolete or Renamed Features

Functionality is sometimes removed from PostgreSQL, feature, setting and file names sometimes change, or documentation moves to different places. This section directs users coming from old versions of the documentation or from external links to the appropriate new location for the information they need.