rspec-2.9.0.rc1 has been released, with numerous enhancements and bug fixes:
### rspec-core-2.9.0.rc1 / 2012-03-11
* Support for "X minutes X seconds" spec run duration in formatter. (uzzz)
* Strip whitespace from group and example names in doc formatter.
* Removed spork-0.9 shim. If you're using spork-0.8.x, you'll need to upgrade
* Restore `--full_backtrace` option
* Ensure that values passed to `config.filter_run` are respected when running
over DRb (using spork).
* Ensure shared example groups are reset after a run (as example groups are).
* Remove `rescue false` from calls to filters represented as Procs
* Ensure described_class gets the closest constant (pyromaniac)
* In "autorun", don't run the specs in the at_exit hook if there was an
exception (most likely due to a SyntaxError). (sunaku)
* Don't extend groups with modules already used to extend ancestor groups.
### rspec-expectations-2.9.0.rc1 / 2012-03-11
* Move built-in matcher classes to RSpec::Matchers::BuiltIn to reduce pollution
of RSpec::Matchers (which is included in every example).
* Autoload files with matcher classes to improve load time.
* Align respond_to? and method_missing in DSL-defined matchers.
* Clear out user-defined instance variables between invocations of DSL-defined
* Dup the instance of a DSL generated matcher so its state is not changed by
* Treat expected args consistently across positive and negative expectations
(thanks to Ralf Kistner for the heads up)
### rspec-mocks-2.9.0.rc1 / 2012-03-11
* Support order constraints across objects (preethiramdev)
* Allow a `as_null_object` to be passed to `with`
* Pass proc to block passed to stub (Aubrey Rhodes)
* Initialize child message expectation args to match any args (#109 -
### rspec-rails-2.9.0.rc1 / 2012-03-11
* add description method to RouteToMatcher (John Wulff)
* Run "db:test:clone_structure" instead of "db:test:prepare" if Active Record's
schema format is ":sql". (Andrey Voronkov)
* mock_model(XXX).as_null_object.unknown_method returns self again
* Generated view specs use different IDs for each attribute.