22 person worked on making Rails better this week. Big thanks to them!
If you want to be a part of that, check the issues list!

With this change Rails, will be able to recycle the cache keys and if you have big volume cache write, your cache space will be better utilised.

Pre Rails 5, the rails console accepted irb options, but a change in Rails 5 break that feature. Now it is fixed, so you can pass the options like this: rails c -- --simple-prompt.

This change makes Active Record respect the ignored tables if you configured any.

If your cache backend supports the unless_exist option, you can configure Rails to delete the local cache and read the correct value from the backend.