Brikit Blueprint Maker 2.2.4 is a bug fix release and is a recommended update for all Blueprint Maker users using Confluence 7.20.3 or earlier.
Atlassian released a security vulnerability fix that broke all macros and templates in all Brikit products.
This will affect all customers that upgrade to any of the Confluence versions listed as patches for the vulnerabilities announced on December 6. Blueprint Maker 2.2.4 fixes this for all versions of Confluence earlier than 8.0.
See the Blueprint Maker 2.2.4 Release Notes for details.