## 3.0.0
- [#305](https://github.com/airblade/paper_trail/pull/305) - `PaperTrail::VERSION` should be loaded at runtime.
- [#295](https://github.com/airblade/paper_trail/issues/295) - Explicitly specify table name for version class when
querying attributes. Prevents `AmbiguousColumn` errors on certain `JOIN` statements.
- [#289](https://github.com/airblade/paper_trail/pull/289) - Use `ActiveSupport::Concern` for implementation of base functionality on
`PaperTrail::Version` class. Increases flexibility and makes it easier to use custom version classes with multiple `ActiveRecord` connections.
- [#288](https://github.com/airblade/paper_trail/issues/288) - Change all scope declarations to class methods on the `PaperTrail::Version`
class. Fixes usability when `PaperTrail::Version.abstract_class? == true`.
- [#287](https://github.com/airblade/paper_trail/issues/287) - Support for
[PostgreSQL's JSON Type](http://www.postgresql.org/docs/9.2/static/datatype-json.html) for storing `object` and `object_changes`.
- [#281](https://github.com/airblade/paper_trail/issues/281) - `Rails::Controller` helper will return `false` for the
`paper_trail_enabled_for_controller` method if `PaperTrail.enabled? == false`.
- [#280](https://github.com/airblade/paper_trail/pull/280) - Don't track virtual timestamp attributes.
- [#278](https://github.com/airblade/paper_trail/issues/278)/[#272](https://github.com/airblade/paper_trail/issues/272) -
Make RSpec and Cucumber helpers usable with [Spork](https://github.com/sporkrb/spork) and [Zeus](https://github.com/burke/zeus).
- [#273](https://github.com/airblade/paper_trail/pull/273) - Make the `only` and `ignore` options accept `Hash` arguments;
allows for conditional tracking.
- [#264](https://github.com/airblade/paper_trail/pull/264) - Allow unwrapped symbol to be passed in to the `on` option.
- [#224](https://github.com/airblade/paper_trail/issues/224)/[#236](https://github.com/airblade/paper_trail/pull/236) -
Fixed compatibility with [ActsAsTaggableOn](https://github.com/mbleigh/acts-as-taggable-on).
- [#235](https://github.com/airblade/paper_trail/pull/235) - Dropped unnecessary secondary sort on `versions` association.
- [#216](https://github.com/airblade/paper_trail/pull/216) - Added helper & extension for [RSpec](https://github.com/rspec/rspec),
and helper for [Cucumber](http://cukes.info).
- [#212](https://github.com/airblade/paper_trail/pull/212) - Added `PaperTrail::Cleaner` module, useful for discarding draft versions.
- [#207](https://github.com/airblade/paper_trail/issues/207) - Versions for `'create'` events are now created with `create!` instead of
`create` so that an exception gets raised if it is appropriate to do so.
- [#199](https://github.com/airblade/paper_trail/pull/199) - Rails 4 compatibility.
- [#165](https://github.com/airblade/paper_trail/pull/165) - Namespaced the `Version` class under the `PaperTrail` module.
- [#119](https://github.com/airblade/paper_trail/issues/119) - Support for [Sinatra](http://www.sinatrarb.com/); decoupled gem from `Rails`.
- Renamed the default serializers from `PaperTrail::Serializers::Yaml` and `PaperTrail::Serializers::Json` to the capitalized forms,
`PaperTrail::Serializers::YAML` and `PaperTrail::Serializers::JSON`.
- Removed deprecated `set_whodunnit` method from Rails Controller scope.
## 2.7.2
- [#228](https://github.com/airblade/paper_trail/issues/228) - Refactored default `user_for_paper_trail` method implementation
so that `current_user` only gets invoked if it is defined.
- [#219](https://github.com/airblade/paper_trail/pull/219) - Fixed issue where attributes stored with `nil` value might not get
reified properly depending on the way the serializer worked.
- [#213](https://github.com/airblade/paper_trail/issues/213) - Added a `version_limit` option to the `PaperTrail::Config` options
that can be used to restrict the number of versions PaperTrail will store per object instance.
- [#187](https://github.com/airblade/paper_trail/pull/187) - Confirmed JRuby support.
- [#174](https://github.com/airblade/paper_trail/pull/174) - The `event` field on the versions table can now be customized.
## 2.7.1
- [#206](https://github.com/airblade/paper_trail/issues/206) - Fixed Ruby 1.8.7 compatibility for tracking `object_changes`.
- [#200](https://github.com/airblade/paper_trail/issues/200) - Fixed `next_version` method so that it returns the live model
when called on latest reified version of a model prior to the live model.
- [#197](https://github.com/airblade/paper_trail/issues/197) - PaperTrail now falls back on using YAML for serialization of
serialized model attributes for storage in the `object` and `object_changes` columns in the `Version` table. This fixes
compatibility for `Rails 3.0.x` for projects that employ the `serialize` declaration on a model.
- [#194](https://github.com/airblade/paper_trail/issues/194) - A JSON serializer is now included in the gem.
- [#192](https://github.com/airblade/paper_trail/pull/192) - `object_changes` should store serialized representation of serialized
attributes for `create` actions (in addition to `update` actions, which had already been patched by
[#180](https://github.com/airblade/paper_trail/pull/180)).
- [#190](https://github.com/airblade/paper_trail/pull/190) - Fixed compatibility with
[SerializedAttributes](https://github.com/technoweenie/serialized_attributes) gem.
- [#189](https://github.com/airblade/paper_trail/pull/189) - Provided support for a `configure` block initializer.
- Added `setter` method for the `serializer` config option.
## 2.7.0
- [#183](https://github.com/airblade/paper_trail/pull/183) - Fully qualify the `Version` class to help prevent
namespace resolution errors within other gems / plugins.
- [#180](https://github.com/airblade/paper_trail/pull/180) - Store serialized representation of serialized attributes
on the `object` and `object_changes` columns in the `Version` table.
- [#164](https://github.com/airblade/paper_trail/pull/164) - Allow usage of custom serializer for storage of object attributes.
## 2.6.4
- [#181](https://github.com/airblade/paper_trail/issues/181)/[#182](https://github.com/airblade/paper_trail/pull/182) -
Controller metadata methods should only be evaluated when `paper_trail_enabled_for_controller == true`.
- [#177](https://github.com/airblade/paper_trail/issues/177)/[#178](https://github.com/airblade/paper_trail/pull/178) -
Factored out `version_key` into it's own method to prevent `ConnectionNotEstablished` error from getting thrown in
instances where `has_paper_trail` is declared on class prior to ActiveRecord establishing a connection.
- [#176](https://github.com/airblade/paper_trail/pull/176) - Force metadata calls for attributes to use current value
if attribute value is changing.
- [#173](https://github.com/airblade/paper_trail/pull/173) - Update link to [diff-lcs](https://github.com/halostatue/diff-lcs).
- [#172](https://github.com/airblade/paper_trail/pull/172) - Save `object_changes` on creation.
- [#168](https://github.com/airblade/paper_trail/pull/168) - Respect conditional `:if` or `:unless` arguments to the
`has_paper_trail` method for `destroy` events.
- [#167](https://github.com/airblade/paper_trail/pull/167) - Fix `originator` method so that it works with subclasses and STI.
- [#160](https://github.com/airblade/paper_trail/pull/160) - Fixed failing tests and resolved out of date dependency issues.
- [#157](https://github.com/airblade/paper_trail/pull/157) - Refactored `class_attribute` names on the `ClassMethods` module
for names that are not obviously pertaining to PaperTrail to prevent method name collision.