Thanks to 
@NamePros for sponsoring this update.
This add-on is now available on 
atelieraphelion.com
This update will require a full search rebuild, truncating the index before re-indexing.
- Require php 7.2+
 
- Require Standard Library by Xon v1.18.0+
 
- Require Search Improvements v2.9.0+ (was previously an optional dependency, now hard required)
 
- Fix report resolve alert reason wasn't indexed
 
- Fix reports with hard-delete content would not be re-indexed when required
 
- Fix public banner wasn't capture for new warnings
 
- Fix support for user renames/deletes/merges
 
- Fix assigning a report to a non-moderator was unreliable depending due to unstable sorting of the non-moderator list
 
- Fix the report assignable lists could become stale when permissions where changed
 
- Fix assignable user list could sometimes be unsorted
 
- Track user who assigned a report to another user (limited back-dating on install)
 
- Enrich @NixFifty's Tickets reports to display coontent date like post reports do
 
- Improvements which require ElasticSearch (aka Xenforo Enhanced Search)
- Search by min/max number of comments, sort by number of comments
 
 
- Overhaul Report/Warning search. Many new criteria, a number require ElasticSearch Essentials.
- Split Report search  tab into Report and Warning search tabs
 
- Rework most criteria, old search links will not work
 
- New report criteria: Reported user/With assigned/By assigner/Participants/Reported for content in/Comment count/With report state/etc
 
- New warning criteria: Warned user/Warning issuer/"Search only the latest version"/Warning log type/Warned for content in/Warning definition/Expiry date
- If you are searching by expiry date, you probably want "Search only the latest version" checked!
 
 
- Support searching reports/warnings by "Reported/Warned for content in", ie reports/warnings from a given forum.