2.4.1 (2021-08-19)

This release contains bug fixes since the 2.4.0 release. We deem it
high priority to upgrade.

The release fixes continuous aggregate refresh for postgres 12.8 and
13.4, a crash with ALTER TABLE commands and a crash with continuous
aggregates with HAVING clause.

Bugfixes

• #3430 Fix havingqual processing for continuous aggregates
• #3468 Disable tests by default if tools are not found
• #3462 Fix crash while tracking alter table commands
• #3489 Fix continuous agg bgw job failure for PG 12.8 and 13.4
• #3494 Improve error message when adding data nodes

Thanks

• @brianbenns for reporting a segfault with continuous aggregates
• @usego for reporting an issue with continuous aggregate refresh on PG 13.4