Two versions of PostgresExt have been released today.
The 1.0.0 version is the first production release of PostgresExt. It supports Rails 3.2.x, adding in both data type and advanced querying support for ActiveRecord and Arel.
I have also released version 2.0.0, which supports ActiveRecord and Arel 4.0.x. Most of the 1.0.0 code is gone from 2.0.0, since Rails 4.0.0 supports all the data types that PostgresExt added to Rails 3.2.x.
I'm focusing on Rails 4.0.0 for all future features of PostgresExt. I will gladly pull in additional features for 1.0.0, but Rails 3.2.x is no longer the primary focus of PostgresExt. Maintenance on 1.0.0 will be minimal, since Rails 3.2.x will no longer be receiving releases for bug fixes, but pull requests for bug fixes would be graciously accepted.