It would be nice if you could summarize the all the feature flag settings at the top of the release notes.

# Enable all new behavior in Mongoid 7.4
Mongoid.broken_updates        = false
Mongoid.legacy_triple_equals  = false
Mongoid.broken_scoping        = false
Mongoid.broken_aggregables    = false
Mongoid.broken_alias_handling = false
Mongoid.broken_and            = false
Mongoid.object_id_as_json_oid = false
Mongoid.legacy_pluck_distinct = false
Mongoid.compare_time_by_ms    = true

ALTERNATIVELY: Rails has a feature `config.load_defaults 6.0` where you can auto-set all the feature flags from the latest version. I would recommend to have `Mongoid.load_defaults 7.4` and copy the logic from Rails, it works brilliantly.

In addition:

• object_id_as_json_oid is missing "Will be changed to false in Mongoid 8.0"
• compare_time_by_ms Mongoid 8.0 message is not emphasized like others.
• Typo: value of "The value of Mongoid.broken_update option" should be "broken_updates"