The v6.1.4 release likely refines the DNS query logging and ad-blocking logic to better handle modern tracker evasion techniques. Has anyone noticed changes in how it handles IPv6-only traffic or specific regional DNS over HTTPS implementations in this update?

Sounds like a mostly minor bugfix release, albeit the following sounds serious:

Fix issue where web interface cannot run gravity by @PromoFaux in #6345

Though its clearly not universal.