aasm/CHANGELOG.md

# CHANGELOG

## unreleased
## 5.4.0
* Shrink gem size and export only needed files to work [#742](https://github.com/aasm/aasm/pull/742), thanks to [brunoarueira](https://github.com/brunoarueira)
* Lock redis-objects to 1.6.0 as 1.7.0 has breaking changes [#796](https://github.com/aasm/aasm/pull/796)
## 5.3.1
* Fix fire! with string argument [#787](https://github.com/aasm/aasm/issues/787), in PR[#788](https://github.com/aasm/aasm/pull/788) thanks to [norman](https://github.com/norman)

* Allow `fire` and `fire!` to accept a String or Symbol for the event name, and raise AASM::UndefinedEvent rather than AASM::UndefinedState
  when an event can not be found, thanks to [norman](https://github.com/norman).

## 5.3.0

* Add Ruby 3.1 and Rails 7 to the CI matrix [#775](https://github.com/aasm/aasm/pull/775), thanks to [petergoldstein](https://github.com/petergoldstein)
* Fixed an error in Ruby 3 when specifying a method that takes keyword arguments, such as event's before hook [#777](https://github.com/aasm/aasm/pull/777), thanks to [pocari](https://github.com/pocari)
* Fix multi-threading bug not firing success callbacks [#778](https://github.com/aasm/aasm/pull/778), thanks to [guewen](https://github.com/guewen)
* Raise AASM::UndefinedState when calling fire or fire! with undefined event names [#753](https://github.com/aasm/aasm/pull/753), thanks to [danielvdao](https://github.com/danielvdao)
* Fixing Readme typos [#745](https://github.com/aasm/aasm/pull/745) [#772](https://github.com/aasm/aasm/pull/772) [#774](https://github.com/aasm/aasm/pull/774) [#781](https://github.com/aasm/aasm/pull/781), thanks to [jaredsmithse](https://github.com/jaredsmithse) [jcat4](https://github.com/jcat4) [ChandanChainani](https://github.com/ChandanChainani) [TessHuelskamp](https://github.com/TessHuelskamp)
* Add github actions config [#750](https://github.com/aasm/aasm/pull/750), thanks to [aka47](https://github.com/aka47)
* Test against for Rails 6.0 and improve ci [#719](https://github.com/aasm/aasm/pull/719), thanks to [yujideveloper](https://github.com/yujideveloper)
* Fix migration class name to work with zeitwerk [#720](https://github.com/aasm/aasm/pull/720), thanks to [rwegrzyniak](https://github.com/rwegrzyniak)
## 5.2.0

* fix: timestamp will work with named machine [#739](https://github.com/aasm/aasm/pull/739), thanks to [RolandStuder](https://github.com/RolandStuder)
* Create namespaced scopes in PR [#735](https://github.com/aasm/aasm/pull/735), thanks to [caiohsramos](https://github.com/caiohsramos)
* Fix multiple state machines example per class on README in PR [#732](https://github.com/aasm/aasm/pull/732), thanks to [RodrigoVitiello](https://github.com/RodrigoVitiello)
* Update version in recommendation to add after_commit_everywhere in PR [#729](https://github.com/aasm/aasm/pull/729), thanks to [Envek](https://github.com/Envek)
* Fix i18n Event translations failing [#721](https://github.com/aasm/aasm/issues/721) in PR [#723](https://github.com/aasm/aasm/pull/723), thanks to [the-spectator](https://github.com/the-spectator)
* Add documentation to the Readme about how parameters are handled in AASM events in PR [#722](https://github.com/aasm/aasm/pull/722), thanks to [dstuebe](https://github.com/dstuebe)
* Fix human_state cached across locales [#709](https://github.com/aasm/aasm/issues/709) in PR [716](https://github.com/aasm/aasm/pull/716), thanks to [the-spectator](https://github.com/the-spectator)
* Relocate DslHelper from root namespace to under AASM namespace in PR [#711](https://github.com/aasm/aasm/pull/711) thank to [yujideveloper ](https://github.com/yujideveloper )
* Document how to define transitions from any state in in PR [#699](https://github.com/aasm/aasm/pull/699) thanks to [hedgesky](https://github.com/hedgesky)
* Add simple option for auto-generated timestamps in PR [#677](https://github.com/aasm/aasm/pull/677), thanks to [jaynetics](https://github.com/jaynetics)
## 5.1.1

* Fix Depreciation message for after_commit_everywhere [#695](https://github.com/aasm/aasm/issues/695) in PR [#696](https://github.com/aasm/aasm/pull/696)
* Fix human_state to use display option [#684](https://github.com/aasm/aasm/issues/684) in PR [#697](https://github.com/aasm/aasm/pull/697)
* Remove support for ruby 2.3

## 5.1.0

* Fix after_commit in nested transactions [#536](https://github.com/aasm/aasm/issues/536) without explicit AR dependency in PR [#668](https://github.com/aasm/aasm/pull/668), thanks to [stokarenko](https://github.com/stokarenko)
* Remove support for Rails 3.2

## 5.0.8

* Revert Fix for :after_commit within nested transaction because it adds after_commit_action dependency which is dependent on many gems.

## 5.0.7

* Fix :after_commit within nested transaction [#666](https://github.com/aasm/aasm/pull/666), thanks to [stokarenko](https://github.com/stokarenko)
* Add permitted_transitions to group permitted event with state [#664](https://github.com/aasm/aasm/pull/664), thanks to [dnamsons](https://github.com/dnamsons)
* Add Ruby 2.7.0 & 2.6.5 to Travis CI Test Matrix [#661](https://github.com/aasm/aasm/pull/661), thanks to [the-spectator](https://github.com/the-spectator)
* Handle InvalidTransition in transition_from matcher [#653](https://github.com/aasm/aasm/pull/653), thanks to [ryanwood](https://github.com/ryanwood)

## 5.0.6

* Fix no_direct_assignment, couldn't be turned off pragmatically [#636](https://github.com/aasm/aasm/issues/636)
* Add instance level validation skip option [#644](https://github.com/aasm/aasm/pull/644), thanks to [Nitin-Salunke](https://github.com/Nitin-Salunke)
* Fixed aasm.current_event incorrectly yields nil when calling aasm.fire!(:event) [#551](https://github.com/aasm/aasm/issues/551) in [#638](https://github.com/aasm/aasm/pull/638), thanks to [DoubleJarvis](https://github.com/DoubleJarvis)
* Code Refactor [#634](https://github.com/aasm/aasm/pull/634) , thanks to [rahulknojha](https://github.com/rahulknojha)
* Fixed callback argument for :before_success & :success callback, [#630](https://github.com/aasm/aasm/pull/630)

## 5.0.5

* Independent of ActiveSupport methods, [#627](https://github.com/aasm/aasm/pull/627),
thanks to [tristandruyen](https://github.com/tristandruyen). Fixes [#508](https://github.com/aasm/aasm/issues/508)

## 5.0.4

* Specify dynamoid version for Rails > 5, [#625](https://github.com/aasm/aasm/pull/625),
thanks to [waghanza](https://github.com/waghanza)
* Add travis runner for Rails 5.2, [#624](https://github.com/aasm/aasm/pull/624), thanks
to [waghanza](https://github.com/waghanza)
* Cleanup Abstract class issue, [#620](https://github.com/aasm/aasm/pull/620), thanks to
[dennym](https://github.com/dennym)

## 5.0.3

* Fix Abstract class issue, [#619](https://github.com/aasm/aasm/pull/619)

## 5.0.2

* Clear failed callbacks, [#600](https://github.com/aasm/aasm/pull/600), thanks to
[nedgar](https://github.com/nedgar)
* README improvements, [#594](https://github.com/aasm/aasm/pull/594),
[#589](https://github.com/aasm/aasm/pull/589), [#587](https://github.com/aasm/aasm/pull/587),
[#597](https://github.com/aasm/aasm/pull/597), thanks to [jackscotti](https://github.com/jackscotti), [krmbzds](https://github.com/krmbzds),
[zegomesjf](https://github.com/zegomesjf), [BKSpurgeon](https://github.com/BKSpurgeon)
* Update InvalidTransition to include state_machine_name [#592](https://github.com/aasm/aasm/pull/592), thanks to [a14m](https://github.com/a14m)
* Do not add migration if model and column already exists [#586](https://github.com/aasm/aasm/pull/586), thanks to [KiranJosh](https://github.com/KiranJosh)

## 5.0.1

* Fix failures array in transition not being reset [#383](https://github.com/aasm/aasm/issues/383)
* Enable AASM scopes to be defined on abstract classes.

## 5.0.0

* Chore(invokers): Refactor callback invokers, add class-callbacks support [#541](https://github.com/aasm/aasm/pull/541), thanks to [pandomic](https://github.com/pandomic)
* Add docker setup to readme
* Add support for Nobrainer (RethinkDB) [#522](https://github.com/aasm/aasm/pull/522), thanks to [zedtux](https://github.com/zedtux)
* Patch `allow_event` to accept event with custom arguments [#419](https://github.com/aasm/aasm/pull/419), thanks to [czhc](https://github.com/czhc)

## 4.12.3

* Add to AASM fire(event) and fire!(event) methods [#494](https://github.com/aasm/aasm/pull/494), thanks to [slayer](https://github.com/slayer)
* Add `use_transactions` flag to persist changes to the database even when some error occurs. [#493](https://github.com/aasm/aasm/pull/493), thanks to Peter Lampesberger.

## 4.12.2

* Fix guards parameter [#484](https://github.com/aasm/aasm/pull/484), thanks to [teohm](https://github.com/teohm)
* Make errors more inspectable [#452](https://github.com/aasm/aasm/pull/452), thanks to [flexoid](https://github.com/flexoid)
* Enable Dynamoid for Rails 5 [#483](https://github.com/aasm/aasm/pull/483), thanks to [focusshifter](https://github.com/focusshifter)

## 4.12.1

* DRY-up Mongoid and ActiveRecord Persistence, Add Sequel transactions and locking [#475](https://github.com/aasm/aasm/pull/475), thanks to [@Aryk](https://github.com/Aryk)
* Add aliases for event methods [#476](https://github.com/aasm/aasm/pull/476), thanks to [@Aryk](https://github.com/Aryk)
* Support Minitest spec expectations [#387](https://github.com/aasm/aasm/pull/387), thanks to [@faragorn](https://github.com/faragorn)
## 4.12.0

 * Fix thread safe issue with concurrent-ruby gem [see [pull-request #422](https://github.com/aasm/aasm/pull/442), thanks to [@reidmorrison](https://github.com/reidmorrison)
 * Drop Support for Mongo Mapper [see [pull-request #439](https://github.com/aasm/aasm/pull/439)], thanks to [@reidmorrison](https://github.com/reidmorrison)
 * add :binding_event option to event [see [pull-request #438](https://github.com/aasm/aasm/pull/438)], thanks to [@leanhdaovn](https://github.com/leanhdaovn)
 * fix: `skip_validation_on_save: true` for default_scope records, [see [pull-request #433](https://github.com/aasm/aasm/pull/433)], thanks to [@larissa](https://github.com/larissa)
 * Deep clone state machine during inheritance so that state machines in child classes can be modified (see [pull-request #429](https://github.com/aasm/aasm/pull/429)), thanks to [@reidmorrison](https://github.com/reidmorrison) and [@Tybot204](https://github.com/Tybot204)
 * add before_success callback for event (see [pull-request #422](https://github.com/aasm/aasm/pull/422)), thanks to [@timsly ](https://github.com/timsly)
 * fix: multiple transitions in a single event with the same to and from states (see [issue #372](https://github.com/aasm/aasm/issues/372) and [issue #362](https://github.com/aasm/aasm/issues/362) for details, fixed with [pull-request #408](https://github.com/aasm/aasm/pull/408), thanks to [@dathanb](https://github.com/dathanb))
 * fix: passing nil as a argument to callbacks (see [issue #404](https://github.com/aasm/aasm/issues/404) for details, fixed with [pull-request #406](https://github.com/aasm/aasm/pull/406), thanks to [@yogeshjain999](https://github.com/yogeshjain999))


## 4.11.1

 * fix: generator file name when using custom column name instead of
  aasm_state (see [issue #398](https://github.com/aasm/aasm/pull/398) for details,
  thanks to [@bastianwegge](https://github.com/bastianwegge))
 * fix: Scopes when states are defined as a series of symbols (see [issue #397](https://github.com/aasm/aasm/pull/397) for details, thanks to [@evheny0](https://github.com/evheny0))
 * fix: Multiple transition behavior when one of the transitions does not
 have a "from" parameter (see [issue #392](https://github.com/aasm/aasm/issues/392) for details)
 * fix: permissible states not respecting guard parameters (see [issue #388](https://github.com/aasm/aasm/issues/388)) with [pull-request #389](https://github.com/aasm/aasm/pull/389)

## 4.11.0

 * support `logger` configuration (see [issue #370](https://github.com/aasm/aasm/pull/370) for details, thanks to [@HoyaBoya](https://github.com/HoyaBoya))
 * support configuration to let bang transitions fail if object is invalid (see [issue #366](https://github.com/aasm/aasm/pull/366) and [issue #262](https://github.com/aasm/aasm/issues/262) for details, thanks to [@Wildebeest](https://github.com/Wildebeest))


## 4.10.1

 * fix: suppress warnings when using ActiveRecord enums feature (see [issue #346](https://github.com/aasm/aasm/pull/346) for details, thanks to [@110y](https://github.com/110y), and [issue #353](https://github.com/aasm/aasm/pull/353) for details, thanks to [@nathanstitt](https://github.com/nathanstitt))
 * fix: handle array of success callbacks for transitions properly (see [issue #363](https://github.com/aasm/aasm/pull/363) for details, thanks to [@shunichi](https://github.com/shunichi))
 * support `permitted: false` for states and events query/inspection methods (see [issue #364](https://github.com/aasm/aasm/pull/364) for details, thanks to [@hspazio](https://github.com/hspazio))

## 4.10.0

 * fix: some issues with RubyMotion (see [issue #320](https://github.com/aasm/aasm/pull/320) and [issue #343](https://github.com/aasm/aasm/pull/343) for details, thanks to [@Infotaku](https://github.com/Infotaku))
 * fix: transitions now work in dup'ed copies (see [issue #325](https://github.com/aasm/aasm/pull/325) which fixes [issue #273](https://github.com/aasm/aasm/pull/273) for details, thanks to [@lingceng](https://github.com/lingceng))
 * fix: allow skipping the `aasm_ensure_initial_state` callback (see [issue #326](https://github.com/aasm/aasm/pull/326) for details, thanks to [@sineed](https://github.com/sineed))
 * fix: has_many association helper works again for Mongoid (see [issue #333](https://github.com/aasm/aasm/pull/333) which fixes [issue #332](https://github.com/aasm/aasm/pull/332) for details, thanks to [@anilmaurya](https://github.com/anilmaurya))
 * improve performance / refactor: load and run only code which is needed (see [issue #336](https://github.com/aasm/aasm/pull/336) for details, thanks to [@csmuc](https://github.com/csmuc))
 * improve: warn when overriding an existing method (see [issue #340](https://github.com/aasm/aasm/pull/340) which fixes [issue #335](https://github.com/aasm/aasm/pull/335) for details, thanks to [@pirj](https://github.com/pirj))
 * fix: correct error message (by not evaluating the current state lazily) (see [issue #341](https://github.com/aasm/aasm/pull/341) which fixes [issue #312](https://github.com/aasm/aasm/pull/312) for details, thanks to [@pirj](https://github.com/pirj))
 * addition: support for Redis as persistence layer (see [issue #190](https://github.com/aasm/aasm/pull/190) for details, thanks to [@javajax](https://github.com/javajax))
 * addition: support transition `:success` callbacks (see [issue #239](https://github.com/aasm/aasm/pull/239) which fixes [issue #236](https://github.com/aasm/aasm/pull/236) for details, thanks to [@brega](https://github.com/brega))
 * addition: support for namespacing methods and state names (see [issue #259](https://github.com/aasm/aasm/pull/259) for details, thanks to [@allspiritseve](https://github.com/allspiritseve))
 * addition: support for defining multiple states in one line (see [issue #288](https://github.com/aasm/aasm/pull/288) which fixes [issue #146](https://github.com/aasm/aasm/pull/146) for details, thanks to [@HParker](https://github.com/HParker))
 * fix: uninitialised constant when running Rails generator (see [issue #339](https://github.com/aasm/aasm/pull/339) for details, thanks to [@long-long-float](https://github.com/long-long-float))

## 4.9.0

 * add support for callback classes (`after` only) (see [issue #316](https://github.com/aasm/aasm/pull/316) for details, thanks to [@mlr](https://github.com/mlr))
 * allow easier extension of _AASM_ (utilising the idea of _ApplicationRecords_ from _Rails 5_) (see [issue #296](https://github.com/aasm/aasm/pull/296) for details, thanks to [@mlr](https://github.com/mlr))
 * support pessimistic locking for _ActiveRecord_ (see [issue #283](https://github.com/aasm/aasm/pull/283) for details, thanks to [@HoyaBoya](https://github.com/HoyaBoya))
 * fix: support database sharding for _ActiveRecord_ (see [issue #289](https://github.com/aasm/aasm/pull/289) for details, thanks to [@scambra](https://github.com/scambra))
 * fix: some issues with RubyMotion (see [issue #318](https://github.com/aasm/aasm/pull/318) for details, thanks to [@Infotaku](https://github.com/Infotaku))
 * fix: Rails generator now features the correct namespace (see [issue #328](https://github.com/aasm/aasm/pull/328) and [issue #329](https://github.com/aasm/aasm/pull/329) for details, thanks to [@anilmaurya](https://github.com/anilmaurya))


## 4.8.0

 * add support for [dynamoid](http://joshsymonds.com/Dynamoid/) (see [issue #300](https://github.com/aasm/aasm/pull/300) for details, thanks to [@LeeChSien](https://github.com/LeeChSien))
 * make compatible with [RubyMotion](http://www.rubymotion.com) (see [issue #315](https://github.com/aasm/aasm/pull/315) for details, thanks to [@Infotaku](https://github.com/Infotaku))
 * improve error handling in case of an exception during transitioning (see [issue #275](https://github.com/aasm/aasm/pull/275) for details, thanks to [@chriswoodrich](https://github.com/chriswoodrich))
 * rspec matcher `on_event` now supports arguments (see [issue #309](https://github.com/aasm/aasm/pull/309) for details, thanks to [@zacviandier](https://github.com/zacviandier))
 * fix: permitted states now respect guards (see [issue #308](https://github.com/aasm/aasm/pull/308) for details, thanks to [@eebs](https://github.com/eebs))
 * fix: reloading the env now doesn't add callbacks twice anymore (see [issue #311](https://github.com/aasm/aasm/pull/311) for details, thanks to [@lingceng](https://github.com/lingceng))

## 4.7.0

 * fix: allow :send as event name (see [issue #257](https://github.com/aasm/aasm/issues/257) for details)
 * add new callbacks: transactions, all events, ensure (see [issue #282](https://github.com/aasm/aasm/issues/282) for details, thanks to [@HoyaBoya](https://github.com/HoyaBoya))

## 4.6.0

 * fix: make sure the column is actually present for _ActiveRecord_ enums (see [issue #265](https://github.com/aasm/aasm/issues/265) and [issue #152](https://github.com/aasm/aasm/issues/152) for details, thanks to [@anilmaurya](https://github.com/anilmaurya))
 * add generators to configure active_record and mongoid after install (see [issue #261](https://github.com/aasm/aasm/issues/261) for details, thanks to [@anilmaurya](https://github.com/anilmaurya))

## 4.5.2

 * fix arity difference between Procs and lambdas (see [issue #293](https://github.com/aasm/aasm/issues/293) for details)

## 4.5.1

 * make sure to use override configuration options if state machine is defined more than once (see [issue #287](https://github.com/aasm/aasm/issues/287) for details)

## 4.5.0

 * add RSpec matchers `have_state`, `allow_event` and `allow_transition_to` (see [issue #147](https://github.com/aasm/aasm/issues/147) for details)
 * add RSpec matcher `transition_from` (see [issue #178](https://github.com/aasm/aasm/issues/178) for details, thanks to [@thomasstephane](https://github.com/thomasstephane))

## 4.4.1

 * add support for rejecting certain events on inspection (see [issue #272](https://github.com/aasm/aasm/issues/272)  for details, thanks to [@dubroe](https://github.com/dubroe))

## 4.4.0

 * add support global transation callbacks (see [issue #221](https://github.com/aasm/aasm/issues/221) and [issue #253](https://github.com/aasm/aasm/issues/253) for details)
 * add support (bugfix) for Mongoid >= 5.0 (see [issue #277](https://github.com/aasm/aasm/issues/277) and [issue #278](https://github.com/aasm/aasm/issues/278) for details)

## 4.3.0

 * add support for multiple state machines per class (see [issue #158](https://github.com/aasm/aasm/issues/158) and [issue #240](https://github.com/aasm/aasm/issues/240) for details)
    * special thanks to [@evadne](https://github.com/evadne) for testing this feature, and providing comments and patches (see [issue #245](https://github.com/aasm/aasm/issues/245) for details)

## 4.2.0

 * support turning off and on the configuration option for `no_direct_assignment` (see [issue #223](https://github.com/aasm/aasm/issues/223) for details)
 * event arguments are now passed to `:after_commit` callbacks as well (see [issue #238](https://github.com/aasm/aasm/pull/238), thanks to [@kuinak](https://github.com/kuinak))

## 4.1.1

 * support block notation for `:after_commit` event callbacks (see [issue #224](https://github.com/aasm/aasm/issues/224) for details)
 * event arguments are now passed to state callbacks as well (not only to event callbacks) (see [issue #219](https://github.com/aasm/aasm/issues/219), thanks to [@tobithiel](https://github.com/tobithiel))
 * `AASM::InvalidTransition` now references the current object (with the state machine) and the _AASM_ event name (see [issue #217](https://github.com/aasm/aasm/issues/217), thanks to [@awsmsrc](https://github.com/awsmsrc))
 * bugfix: do not update unloaded state for [Sequel](http://sequel.jeremyevans.net/) (see [issue #218](https://github.com/aasm/aasm/issues/218), thanks to [@godfat](https://github.com/godfat))

## 4.1.0

 * bugfix: initialize the aasm state column after initialization of the _Mongoid_ instance (see [issue #206](https://github.com/aasm/aasm/issues/206), thanks to [@Shwetakale ](https://github.com/Shwetakale ))
 * added support for mongomapper ORM (see [issue #203](https://github.com/aasm/aasm/issues/203), thanks to [@reidmorrison ](https://github.com/reidmorrison ))
 * `aasm_column` has been removed. Use `aasm.attribute_name` instead
 * `aasm_human_event_name` has been removed. Use `aasm.human_event_name` instead

## 4.0.8

 * bugfix: may_event_name? should return true or false only (see [issue #200](https://github.com/aasm/aasm/issues/200) for details)

## 4.0.7

 * bugfix: take private methods into account when checking for callbacks (see [issue #197](https://github.com/aasm/aasm/issues/197) for details)

## 4.0.6

 * bugfix: `false` is treated as uninitialised state (same as `nil`) (see [issue #195](https://github.com/aasm/aasm/issues/195) for details)
 * bugfix: an event's `:error` callback now retrieves all arguments passed to the event (see [issue #196](https://github.com/aasm/aasm/issues/196) for details)

## 4.0.5

 * bugfix: initialize the aasm state column after initialization of the _ActiveRecord_ instance only if the attribute has been loaded (see [issue #193](https://github.com/aasm/aasm/issues/193) for details)

## 4.0.4

 * corrected callback order in README
 * bugfix: initialize the aasm state column after initialization of the _ActiveRecord_ instance (see [issue #191](https://github.com/aasm/aasm/issues/191) for details)
 * bugfix: avoid Rails autoloading conflicts (see [issue #137](https://github.com/aasm/aasm/issues/137) and [issue #139](https://github.com/aasm/aasm/issues/139) for details)

## 4.0.3

 * bugfix: fire guards only once per transition, part 2 (see [issue #187](https://github.com/aasm/aasm/issues/187) for details)
 * `aasm_column` is deprecated. Use `aasm.attribute_name` instead

## 4.0.2

 * bugfix: really support block-guards (defined within a transition block) (see [issue #186](https://github.com/aasm/aasm/issues/186) for details)

## 4.0.1

 * fire guards only once per transition (see [issue #184](https://github.com/aasm/aasm/issues/184) for details)
 * `aasm_human_event_name` is deprecated, use `aasm.human_event_name` instead

## 4.0.0

 * support `if` and `unless` guard syntax: (see [issue #179](https://github.com/aasm/aasm/issues/179) and [issue #181](https://github.com/aasm/aasm/issues/181)), thanks to [@bigtunacan](https://github.com/bigtunacan)
 * may configure to not allow direct assignment for persisted AASM models (see [issue #53](https://github.com/aasm/aasm/issues/53))
 * **DSL change**: callbacks don't require `to_state` parameter anymore, but still support it
   (closing issues
   [#11](https://github.com/aasm/aasm/issues/11),
   [#58](https://github.com/aasm/aasm/issues/58) and
   [#80](https://github.com/aasm/aasm/issues/80)
   thanks to [@ejlangev](https://github.com/ejlangev))
 * **DSL change**: `after_commit` hooks are now event-based (see [issue #112](https://github.com/aasm/aasm/issues/112))
 * **DSL change**: event and state callbacks have been re-ordered; state callbacks are not run anymore if any guard fails
 * **DSL change**: `:on_transition` renamed to `:after`
 * **DSL change**: `:on_transition` renamed to `:after`
 * **DSL change**: transition `:after` binding changed (see [issue #59](https://github.com/aasm/aasm/issues/59), thanks to [@stiff](https://github.com/stiff))
 * **DSL change**: instance-based events inspection now returns event instances (instead of the event names as symbol)
 * **DSL change**: instance-based permissible_events has been removed in favor or events(:permissible => true)
 * **DSL change**: class-based events now returns a list of Event instances (instead of a hash with event names as keys)
 * **DSL change**: renamed permissible states and events to permitted states events
 * removed deprecated methods (mostly the ones prefixed with `aasm_`)

## 3.4.0

 * allow retrieving the current event (`aasm.current_event`) (see [issue #159](https://github.com/aasm/aasm/issues/159) and [issue #168](https://github.com/aasm/aasm/issues/168))

## 3.3.3

 * bugfix: support reloading development environment in Rails (see [issue #148](https://github.com/aasm/aasm/issues/148))

## 3.3.2

 * bugfix: avoid conflicts with `failed` and `fired` event names (see [issue #157](https://github.com/aasm/aasm/issues/157)), thanks to [@MichaelXavier](https://github.com/MichaelXavier)
 * bugfix: not using transactions unless saving to the database (see [issue #162](https://github.com/aasm/aasm/issues/162) and [issue #164](https://github.com/aasm/aasm/issues/164)), thanks to [@roberthoner](https://github.com/roberthoner)
 * bugfix: `after_commit` should only run if saving to the database (see [issue #151](https://github.com/aasm/aasm/issues/151)), thanks to [@ivantsepp](https://github.com/ivantsepp)

## 3.3.1

 * bugfix: permissible events will respect given `guards` (see [issue #150](https://github.com/aasm/aasm/issues/150))

## 3.3.0

 * support for Rails 4.1 enum fields (see [issue #124](https://github.com/aasm/aasm/issues/124), thanks to [@bkon](https://github.com/bkon))
 * bugfix: allow lazy-evaluation for Rails 3 scopes (see [issue #144](https://github.com/aasm/aasm/issues/144), thanks to [@laurens](https://github.com/laurens))

## 3.2.1

 * bugfix: permissible_events and events did not contain events with an empty "from" transition (see [issue #140](https://github.com/aasm/aasm/issues/140) and [issue #141](https://github.com/aasm/aasm/issues/141), thanks to [@daniel-rikowski](https://github.com/daniel-rikowski))

## 3.2.0

 * support [Sequel](http://sequel.jeremyevans.net/) (see [issue #119](https://github.com/aasm/aasm/issues/119), thanks to [@godfat](https://github.com/godfat))
 * may not fire an unknown event (see [issue #128](https://github.com/aasm/aasm/issues/128)

## 3.1.1

 * bugfix: don't require ActiveRecord for localizing AASM event and state name (see [issue #113](https://github.com/aasm/aasm/issues/113), thanks to [@silentshade](https://github.com/silentshade))

## 3.1.0

 * validating the current state (see [issue #95](https://github.com/aasm/aasm/issues/95), thanks to [@ivantsepp](https://github.com/ivantsepp))
 * allow configuring behavior of nested transactions (see [issue #107](https://github.com/aasm/aasm/issues/107))
 * support multiple guards per transition
 * support event guards (see [issue #85](https://github.com/aasm/aasm/issues/85))
 * support reading from- and to-state during on_transition callback (see [issue #100](https://github.com/aasm/aasm/issues/100))

## 3.0.26

 * support state.human_name (aliased to state.localized_name) (see [issue #105](https://github.com/aasm/aasm/issues/105))

## 3.0.25

 * initialize the state even if validation is skipped (for ActiveRecord and Mongoid persistence) (see [issue #103](https://github.com/aasm/aasm/issues/103), thanks to [@vfonic](https://github.com/vfonic) and [@aaronklaassen](https://github.com/aaronklaassen))

## 3.0.24

 * added support for event blocks (thanks to [@Intrepidd](https://github.com/Intrepidd))

## 3.0.23

 * added support for `after_commit` callback (transaction support) (thanks to [@tisba](https://github.com/tisba))

## 3.0.22

 * fixed [issue 88](https://github.com/aasm/aasm/issues/88): wrong number of arguments for transaction method

## 3.0.21

 * support nested ActiveRecord transactions ([@ozeias](https://github.com/ozeias))
 * allow overwriting of events, can be very useful with inheritance ([@Intrepidd](https://github.com/Intrepidd))

## 3.0.20

 * added configuration option to disable automatic scope creation

## 3.0.19

 * fixed deprecation warning with *Rails 4* (`Relation#update_all` with conditions is deprecated)
 * fixing [issue #69](https://github.com/aasm/aasm/issues/69) ( *ActiveRecord* scopes are not chainable)

## 3.0.18

 * fixing [issue #66](https://github.com/aasm/aasm/issues/66) (state methods not reflecting the current state)

## 3.0.17

 * supporting instance level inspection for states (including permissible state, see [issue #54](https://github.com/aasm/aasm/issues/54))
 * added autocreation of constants for each state ([@jherdman](https://github.com/jherdman))

## 3.0.16

 * added autocreation of state scopes for Mongoid (thanks to [@jonnyshields](https://github.com/johnnyshields))

## 3.0.15

 * added support for localized state names (on a class level, like `Record.aasm.states.map(&:localized_name)`)

## 3.0.14

 * supporting event inspection for to-states transitions (`Event#transitions_to_state?`)

## 3.0.13

 * supporting *ActiveRecord* transactions when firing an event

## 3.0.12

 * `aasm_from_states_for_state` now supports to filter for specific transition

## 3.0.11

 * added class method `aasm_from_states_for_state` to retrieve all from states (regarding transitions) for a given state

## 3.0.10

 * added support for transitions from all other states (thanks to [@swrobel](https://github.com/swrobel))

## 3.0.9

 * guard checks (e.g. `may_edit?`) now support guard parameters as well

## 3.0.8

 * fixed issue with generating docs using yard

## 3.0.7

 * removed deprecation warning when localizing aasm state names (look at [issue #38](https://github.com/rubyist/aasm/issues/38) for details)

## 3.0.6

 * bugfix: if configured to skip validation the code does not validate anymore

## 3.0.5

 * bugfix: get rid of error with old rubygems versions

## 3.0.4

 * bugfix: Subclasses of aasm-enabled classes don't lose settings anymore (thanks to codez)

## 3.0.3

 * bugfix: ActiveRecord scopes are generated when using the new DSL

## 3.0.2

 * ActiveRecord persistence can ignore validation when trying to save invalid models

## 3.0.1

 * added support for Mongoid (Thanks, Michał Taberski)

## 3.0.0

 * switched documentation to the new DSL
 * whiny transactions: by default, raise an exception if an event transition is not possible
 * you may disable whiny transactions

## 2.4.0

 * supporting new DSL (which is much shorter)

## 2.3.1

 * bugfix: avoid naming conflict with i18n

## 2.3.0

 * supporting i18n
 * supporting regular expressions for hash values and strings