Is a gem ready for Rails 4 or 5?

Built for Rails >= 4.1

Added explicit support for Rails 5.

since gem version 1.0.0

since gem version 1.0.0

Use activerecord-import 0.4.0 or higher.

source

since version 0.15.0 (https://github.com/zdennis/activerecord-import/blob/master/CHANGELOG.md#changes-in-0150)

version 0.0.1 is ready

since gem version 1.0.0

why not?

According to changelog ready from 1.2.0 https://github.com/brianhempel/active_record_union#changelog

See comment of jonty davis below

0.5.0

since version 2.4.1

since version 4.0.0

ok

from https://github.com/thoughtbot/administrate/pull/636

See Jason's comment below

since version 3.0.2

Tests show that it works under rails '4.0.0.beta1'.

since gem version 3.1.5

Breadcrumble 4.0.0 is ready for Rails 4!

since commit https://github.com/ma2gedev/breadcrumble/commit/6a274b9b881d74aa69a8c3cf248fa73bacfd1d46

works

since version 5.2.0

Does not depend on rails

Does not depend on rails

Was started as a semi-official reboot of cancan (which is not yet Rails 4 ready). Work on cancan seems to have stopped, cancancan is Rails 4 ready.

since gem version 1.15.0

Does not depend on Rails

does not depended on Rails

from version 1.0.0.rc7 (source)

from version 1.13

https://github.com/cloudinary/cloudinary_gem/blob/master/cloudinary.gemspec

https://github.com/cloudinary/cloudinary_gem/pull/243

_

since gem version 4.1.1

-

since version 1.12.10

since gem version 1.0.0 (source)

since version 1.5.2