Understanding backup and recovery related features
In the new release, we can also see some changes that are backup- and replication-related. Some means to configure replication and backup have changed in the new release.
Note that you might have to adjust your script to make sure that your automation still works. Existing code might fail.
The most important change is that recovery.conf is no more. All necessary configuration steps can now be done directly in postgresql.conf as well as using empty files to control the desired behavior.
To figure out how this works, we recommend reading Chapter 10, Making Sense of Backups and Replication. All changes will be explained in great detail.