Minor release upgrades are released regularly by all software developers, and PostgreSQL has its share of corrections. When a minor release occurs, we bump the last number, usually by one. So, the first release of a major release 9.4 is 9.4.0. The first set of bug fixes is 9.4.1, then 9.4.2, and so on.
This recipe is about moving from a minor release to minor release.
First, get hold of the new release, by downloading either the source or fresh binaries.
In most cases, PostgreSQL aims for minor releases to be simple upgrades. We make great efforts to keep the on-disk format the same for both data/index files and transaction log (WAL) files, but this isn't always the case. Some temporary files can change sometimes.
The upgrade process is as follows:
Read the release notes to see whether there are any special actions that need to be taken for this particular release.
If you have professional support, talk to your support vendor to see whether...