Change record status: 
Introduced in branch: 
1.5.x
Introduced in version: 
1.5.0
Description: 

In InputLengthLimit, check_all_messages is renamed to scan_all_user_messages. RestrictToTopic gains matching_mode and similarity_threshold. The RegExp guardrail is relabelled "RegEx" (#3586475).

Impacts: 
Module developers