How about some free speed? Well, here you go. Rails 3.0.3 includes a much faster version of Active Record that reclaims the performance lost when we went from Rails 2.3.x to 3.x and then some. Aaron Patterson has done a phenomenal job benchmarking, tweaking, and tuning the ARel engine that underpins Active Record 3 and the result is Teh Snappy.
You can read more about Aaron’s work in his ARel 2.0 write-up. If you dare, you can also have a look at his RubyConf slides that went over the rewrite and speed-up in even greater detail (warning: there are slides of boys kissing!).
In addition to the free speed, we’ve also included a truckload of minor fixes. So everything just works better and faster. What more can you ask for? Oh, that it’s a drop-in replacement for Rails 3.0—there are no API changes. You got it.
See all the changes on Github. Install the latest version using
gem install rails. Or bind yourself to the v3.0.3 tag.Enjoy!
Note: Active Record 3.0.3 is mistakenly reporting its tiny version as 1 instead of 3. This has no impact on anything you do unless you were specifically checking that tiny version. But if it bothers you lots, it’s fixed on the 3-0-stable branch.
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