Forum: Ruby on Rails [ANN] Rails 4.0.1 has been released!

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0525b332aafb83307b32d9747a93de03?d=identicon&s=25 "Rafael Mendonça França" <> (Guest)
on 2013-11-01 20:52
(Received via mailing list)
Hi everyone,

I am happy to announce that Rails 4.0.1 has been released. This is a bug
fix release and
includes more than 460 commits.

This release comes up with an important change on how Active Record
subsequent `order` calls.
In Rails 4.0.0 when you do something like this:

User.order("name asc").order("created_at desc")

The later called `order` will be prepended in the ORDER BY clause
on this SQL:

SELECT * FROM users ORDER BY created_at desc, name asc

In Rails 4.0.1 the behavior of Rails 3 has been restored and the
ORDER BY clause
looks like this:

SELECT * FROM users ORDER BY name asc, created_at desc

We chose to revert the behavior because it added a major backward
incompatibility that made
harder to have an upgrade path without major changes in the application
code. Also we consider
the older behavior a bug since it behaves differently from all the
scope methods when they
are chained. So we took the most conservative path of reverting it to be
consistent with the idea
of having a smoother upgrade path to Rails 4.

For those who want the old behavior you can use [`.reorder`](
or [`.unscope`](
to remove the ORDER BY clause and generate another one.

Also, this release adds some performance improvements to make Rails 4

## CHANGES since 4.0.0

To view the changes for each gem, please read the changelogs on GitHub:

* [Action Mailer CHANGELOG](
* [Action Pack CHANGELOG](
* [Active Model CHANGELOG](
* [Active Record CHANGELOG](
* [Active Support CHANGELOG](
* [Railties CHANGELOG](

*Full listing*

To see the full list of changes, [check out all the commits on

## SHA-1

If you'd like to verify that your gem is the same as the one I've
please use these SHA-1 hashes:

* 6f2e4d74b34904b61a47187dd879dca3b26fc2d8  actionmailer-4.0.1.gem
* 063f16cfcf62f766a893fe09e35241bdae7cd70e  actionpack-4.0.1.gem
* b50a071bd924fb27e4c41bb40c9cb483457bc21c  activemodel-4.0.1.gem
* 1a8b173da2d8e2ae27edfeb99164c2574a1d7ddd  activerecord-4.0.1.gem
* 9a58bc3c086628ef8028716eeb7c0cb0f8c7e39a  activesupport-4.0.1.gem
* 4663f4d0607ff59cf0ae5a55b268d27d658fdcc8  rails-4.0.1.gem
* 22e23959dc14101697eb2bb8acc00a81cc6c3884  railties-4.0.1.gem

I'd like to thank you all, every contributor who helped with this

Rafael Mendona Frana
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