E.2. Postgres Pro Enterprise 16.4.2 #
Release Date: 2024-10-24
E.2.1. Overview #
This release is based on Postgres Pro Enterprise 16.4.1 and provides the following changes:
Introduced various optimizations in the implementation of improved performance for subsystems on top of SLRU, including more consistent use of
int64and acquiring the correct SLRU bank lock. The latter fixes an issue with zeroedpg_serialpages, which could manifest itself in “could not access status of transaction” errors.Fixed an issue to avoid potential stack overflow in scenarios involving a large number of subtransactions. Now when handling the process of committing a transaction, iteration is used instead of tail recursion.
Fixed an issue that caused a terminated CFS worker to respawn with a duplicate with the same worker ID. This led to multiple instances of the same worker competing for the recovery of compressed segments.
Fixed a race condition in committing serializable transactions.
Fixed an issue in
pg_serial, which could arise when the transaction counter reached values over 232.Fixed a memory leak in
walsenderin multimaster.
E.2.2. Migration to Version 16.4.2 #
If you are upgrading from a Postgres Pro Enterprise release based on the same PostgreSQL major version, it is enough to install the new version into your current installation directory.
To migrate from PostgreSQL, as well as Postgres Pro Standard or Postgres Pro Enterprise based on a previous PostgreSQL major version, see the migration instructions for version 16.