## E.4. Postgres Pro Standard 10.10.1

Release Date: 2019-08-12

### E.4.1. Overview

This release is based on PostgreSQL 10.10 and Postgres Pro Standard 10.9.1. All changes inherited from PostgreSQL 10.10 are listed in PostgreSQL 10.10 Release Notes. Other major changes and enhancements are as follows:

- Added support for Debian 10.

- Added support for Red Hat Enterprise Linux 8.

- Improved planning accuracy for queries with `OR` clauses. Now sorting is performed correctly for such queries.

- Fixed implementation of greater than (>) and not equal to (<>) operators for the `jsquery` type.

### E.4.2. Migration to Version 10.10.1

If you are upgrading from a Postgres Pro Standard version based on the same PostgreSQL major release, it is enough to install the new version into your current installation directory.

Since pg_probackup delivery model changed in Postgres Pro Standard 10.7.1, when upgrading from a lower version on ALT Linux and Debian-based systems, run `apt dist-upgrade` (or `apt-get dist-upgrade`) to ensure that all new dependencies are handled correctly. On Windows, you have to run a separate pg_probackup installer to complete the upgrade.

When upgrading from version 10.3.2 or lower, you must call the `REINDEX` command for indexes that used `mchar` or `mvarchar` types. Besides, if you have been using `pg_repack` on Debian-based systems, you have to reinstall its package manually when upgrading to this version since its package got renamed to `pg-repack-std-10`.

To migrate from PostgreSQL or a Postgres Pro Standard release based on a previous PostgreSQL major version, see the instructions in Postgres Pro Standard 10.1.1 Release Notes. If you are opting for a dump/restore, make sure to use the `--add-collprovider` option to correctly choose the provider for the default collation of the migrated database.