We still have 18 open reports marked as needing backports to old stable
branches, marked 3 as major and 1 (for 1.21.x) as critical. What to do?
<https://bugzilla.wikimedia.org/buglist.cgi?list_id=273089&resolution=---&query_format=advanced&target_milestone=1.18.x%20release&target_milestone=1.19.x%20release&target_milestone=1.20.x%20release&target_milestone=1.21.x%20release&product=MediaWiki>
Nemo