Incoming! Mailers can now use params allowing for easier preprocessing with before_action akin to Action Controller. To enable call mailers like this: InvitationMailer.with(invitee: person).account_invitation.deliver_later
See the pull request for a considerable A/B example.
For many years Rails has used Erubis to handle ERB templates, but it's been deprecated in favor of Erubi. Being 1/6 shorter to type is far from the only thing Erubi has going for it, so dip into the pull request for the full list 😄
One more thing
Steampunk! It's hip, it's wholesome and for the whole family.
Wrapping up
That's it from This Week in Rails! There were many other great contributions, too numerous to list here, but feel free to check them out!