[sosodev]

Have you updated? Pretty sure all the warnings have been fixed now.

[ljm]

Problem is if you're stuck on gems that aren't maintained any more. Seen a few with PRs containing fixes going stale. Can still switch to a fork, at least.

[jamie_ca]

Yeah, core rails the only warning I've seen is a single one in sprockets-rails (brand new app from last week).

[d3nj4l]

Can't update at work, there's a few breaking changes :/