Using ActiveSupport::Concern instead of plain regular Ruby hooks in railties/lib/rails/generators/migration.rb file
Removed deprecated methods partial_updates and family

Removed deprecated methods `partial_updates`, `partial_updates?` and
`partial_updates=`
Merge pull request #11221 from neerajdotname/partial_updates_family

Removed deprecated methods partial_updates and family
Merge pull request #11220 from aditya-kapoor/add-concern

Change Rails Migration generator module to use AS::Concern