Monroe, 3.0 is better than 2.0 and 1.0, obviously :)
Depending on what you used in 2.0, you might be OK even without changing anything in your code, and if you have to change something it will probably be just search and replace, (some method and variable have been renamed). Please, check the CHANGELOG for complete details.
The elasticsearch extras refactoring mentioned by Tabish happened in 2.0, and 3.0 didn't touch it.
Pagy 3.0 is out!
Now ~40x faster, ~36x lighter!
Take a look at the charts ;)
Posted in Pagy Frontend Extra MAterialize
Did you add the
gem 'pagy' into the Gemfile?
I couldn't have explained it better - even being the author of Pagy.