MariaDB MaxScale 2.5.12 Release Notes -- 2021-05-26

MariaDB MaxScale 2.5.12 Release Notes -- 2021-05-26

NOTE After 2.5.12 was released, a serious regression was noticed. Do not use MaxScale 2.5.12, but install or upgrade to MaxScale 2.5.13 that contains a fix for the regression.

Release 2.5.12 is a GA release.

This document describes the changes in release 2.5.12, when compared to the previous release in the same series.

If you are upgrading from an older major version of MaxScale, please read the upgrading document for this MaxScale version.

For any problems you encounter, please consider submitting a bug report on our Jira.

Bug fixes

  • MXS-3566 EXPLAIN leaks memory
  • MXS-3565 COM_STMT_EXECUTE target selection is too restrictive when no metadata is provided
  • MXS-3548 Plugin name comparison is case-sensitive
  • MXS-3538 Removal of authenticator_options is not documented in upgrade documents
  • MXS-3536 max_slave_connections=0 doesn't work as expected
  • MXS-3535 user variable is not collected if it's in join clause
  • MXS-3533 MaxScale doesn't advertise the SESSION_TRACK capability
  • MXS-3529 Maxscale is not compatible with the latest cmake 3.20
  • MXS-3528 Maxscale source repo contains old boost-1.73.0.tar.gz which is not buildable with latest cmake on ARM
  • MXS-3524 alter syslog is not supported during runtime
  • MXS-3479 Disabling maxlog doesn't fully prevent it from being written to

Known Issues and Limitations

There are some limitations and known issues within this version of MaxScale. For more information, please refer to the Limitations document.


RPM and Debian packages are provided for supported the Linux distributions.

Packages can be downloaded here.

Source Code

The source code of MaxScale is tagged at GitHub with a tag, which is identical with the version of MaxScale. For instance, the tag of version X.Y.Z of MaxScale is maxscale-X.Y.Z. Further, the default branch is always the latest GA version of MaxScale.

The source code is available here.


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