RuboCop 0.20.1 is a bugfix-only release. Below is a list of the bugs we've fixed since 0.20.0:

## 0.20.1 (05/04/2014)

### Bugs fixed

* [#940](https://github.com/rubocop/rubocop/issues/940): Fixed `UselessAccessModifier` not handling `attr_*` correctly. ([@fshowalter][])
* `NegatedIf` properly handles negated `unless` condition. ([@bbatsov][])
* `NegatedWhile` properly handles negated `until` condition. ([@bbatsov][])
* [#925](https://github.com/rubocop/rubocop/issues/925): Do not disable the `Syntax` cop in output from `--auto-gen-config`. ([@jonas054][])
* [#943](https://github.com/rubocop/rubocop/issues/943): Fix auto-correction interference problem between `SpaceAfterComma` and other cops. ([@jonas054][])
* [#954](https://github.com/rubocop/rubocop/pull/954): Fix auto-correction bug in `NilComparison`. ([@bbatsov][])
* [#953](https://github.com/rubocop/rubocop/pull/953): Fix auto-correction bug in `NonNilCheck`. ([@bbatsov][])
* [#952](https://github.com/rubocop/rubocop/pull/952): Handle implicit receiver in `StringConversionInInterpolation`. ([@bbatsov][])
* [#956](https://github.com/rubocop/rubocop/pull/956): Apply `ClassMethods` check only on `class`/`module` bodies. ([@bbatsov][])
* [#945](https://github.com/rubocop/rubocop/issues/945): Fix SpaceBeforeFirstArg cop for multiline argument and exclude assignments. ([@cschramm][])
* [#948](https://github.com/rubocop/rubocop/issues/948): `Blocks` cop avoids auto-correction if it would introduce a semantic change. ([@jonas054][])
* [#946](https://github.com/rubocop/rubocop/issues/946): Allow non-nil checks that are the final expressions of predicate method definitions in `NonNilCheck`. ([@bbatsov][])
* [#957](https://github.com/rubocop/rubocop/issues/957): Allow space + comment inside parentheses, braces, and square brackets. ([@jonas054][])

[@bbatsov]: https://github.com/bbatsov
[@jonas054]: https://github.com/jonas054
[@fshowalter]: https://github.com/fshowalter
[@cschramm]: https://github.com/cschramm
