* [#271](https://github.com/intridea/hashie/pull/271): Added ability to define defaults based on current hash - [@gregory](https://github.com/gregory).
* [#249](https://github.com/intridea/hashie/pull/249): SafeAssignment will now also protect hash-style assignments - [@jrochkind](https://github.com/jrochkind).
* [#259](https://github.com/intridia/hashie/pull/259): Fixed handling of default proc values in Mash - [@Erol](https://github.com/Erol).
* [#260](https://github.com/intridia/hashie/pull/260): Added block support to Extensions::DeepMerge - [@galathius](https://github.com/galathius).
* [#254](https://github.com/intridea/hashie/pull/254): Added public utility methods for stringify and symbolize keys - [@maxlinc](https://github.com/maxlinc).
* [#264](https://github.com/intridea/hashie/pull/264): Methods such as abc? return true/false with Hashie::Extensions::MethodReader - [@Zloy](https://github.com/Zloy).
* [#269](https://github.com/intridea/hashie/pull/269): Add #extractable_options? so ActiveSupport Array#extract_options! can extract it - [@ridiculous](https://github.com/ridiculous).
* [#231](https://github.com/intridea/hashie/pull/231): Added support for coercion on class type that inherit from Hash - [@gregory](https://github.com/gregory).
* [#224](https://github.com/intridea/hashie/pull/224): Merging Hashie::Mash now correctly only calls the block on duplicate values - [@amysutedja](https://github.com/amysutedja).
* [#221](https://github.com/intridea/hashie/pull/221): Reduce amount of allocated objects on calls with suffixes in Hashie::Mash - [@kubum](https://github.com/kubum).
* [#195](https://github.com/intridea/hashie/pull/195): Ensure that the same object is returned after injecting IndifferentAccess - [@michaelherold](https://github.com/michaelherold).
* [#206](http://github.com/intridea/hashie/pull/206): Fixed stack overflow from repetitively including coercion in subclasses - [@michaelherold](https://github.com/michaelherold).
* [#177](https://github.com/intridea/hashie/pull/177): Added support for coercing enumerables and collections - [@gregory](https://github.com/gregory).
* [#179](https://github.com/intridea/hashie/pull/179): Mash#values_at will convert each key before doing the lookup - [@nahiluhmot](https://github.com/nahiluhmot).
* [#184](https://github.com/intridea/hashie/pull/184): Allow ranges on Rash to match all Numeric types - [@medcat](https://github.com/medcat).
* [#187](https://github.com/intridea/hashie/pull/187): Automatically require version - [@medcat](https://github.com/medcat).
* [#169](https://github.com/intridea/hashie/pull/169): Hash#to_hash will also convert nested objects that implement to_hash - [@gregory](https://github.com/gregory).
* [#171](https://github.com/intridea/hashie/pull/171): Include Trash and Dash class name when raising `NoMethodError` - [@gregory](https://github.com/gregory).
* [#172](https://github.com/intridea/hashie/pull/172): Added Dash and Trash#update_attributes! - [@gregory](https://github.com/gregory).
* [#173](https://github.com/intridea/hashie/pull/173): Auto include Dash::IndifferentAccess when IndiferentAccess is included in Dash - [@gregory](https://github.com/gregory).
* [#174](https://github.com/intridea/hashie/pull/174): Fixed `from` and `transform_with` Trash features when IndifferentAccess is included - [@gregory](https://github.com/gregory).
* [#146](https://github.com/intridea/hashie/issues/146): Mash#respond_to? inconsistent with #method_missing and does not respond to #permitted? - [@dblock](https://github.com/dblock).
* [#152](https://github.com/intridea/hashie/pull/152): Do not convert keys to String in Hashie::Dash and Hashie::Trash, use Hashie::Extensions::Dash::IndifferentAccess to achieve backward compatible behavior - [@dblock](https://github.com/dblock).
* [#152](https://github.com/intridea/hashie/pull/152): Do not automatically stringify keys in Hashie::Hash#to_hash, pass `:stringify_keys` to achieve backward compatible behavior - [@dblock](https://github.com/dblock).
* [#149](https://github.com/intridea/hashie/issues/149): Allow IgnoreUndeclared and DeepMerge to be used with undeclared properties - [@jhaesus](https://github.com/jhaesus).
* [#138](https://github.com/intridea/hashie/pull/138): Added Hashie#Rash, a hash whose keys can be regular expressions or ranges - [@epitron](https://github.com/epitron).
* [#131](https://github.com/intridea/hashie/pull/131): Added IgnoreUndeclared, an extension to silently ignore undeclared properties at intialization - [@righi](https://github.com/righi).
* [#107](https://github.com/intridea/hashie/pull/107): Fixed excessive value conversions, poor performance of deep merge in Hashie::Mash - [@davemitchell](https://github.com/dblock), [@dblock](https://github.com/dblock).
* [#103](https://github.com/intridea/hashie/pull/103): Fixed support for Hashie::Dash properties that end in bang - [@thedavemarshall](https://github.com/thedavemarshall).
* [89](https://github.com/intridea/hashie/issues/89): Do not respond to every method with suffix in Hashie::Mash, fixes Rails strong_parameters - [@Maxim-Filimonov](https://github.com/Maxim-Filimonov).
* [#110](https://github.com/intridea/hashie/pull/110): Correctly use Hash#default from Mash#method_missing - [@ryansouza](https://github.com/ryansouza).
* [#96](https://github.com/intridea/hashie/pull/96): Make coercion work better with non-symbol keys in Hashie::Mash - [@wapcaplet](https://github.com/wapcaplet).