## 2.6.1 / 2015-05-25¶ ↑

- Bugs:

  - Make columnar store handle all supported extensions, not just the first.

  - Avoid circular require when using the columnar store.

## 2.6 / 2015-05-25¶ ↑

- New Feature:

  - Columnar data storage for the MIME::Types registry, contributed by Jeremy Evans (@jeremyevans). Reduces default memory use substantially (the mail gem drops from 19 Mib to about 3 Mib). Resolves #96, #94, #83. Partially addresses #64 and #62.

- Development:

  - Removed caching of deprecation messages in preparation for mime-types 3.0. Now, deprecated methods will always warn their deprecation instead of only warning once.

  - Added a logger for deprecation messages.

  - Renamed `lib/mime.rb` to `lib/mime/deprecations.rb` to not conflict with the mime gem on behalf of the maintainers of the Praxis Framework. Provided by Josep M. Blanquer (@blanquer), #100.

  - Added the columnar data conversion tool, also provided by Jeremy Evans.

- Documentation:

  - Improved documentation and ensured that all deprecated methods are marked as such in the documentation.

- Development:

  - Added more Ruby variants to Travis CI.

  - Silenced deprecation messages for internal tools. Noisy deprecations are noisy, but that's the point.

## 2.5 / 2015-04-25¶ ↑

- Bugs:

  - David Genord (@albus522) fixed a bug in loading MIME::Types cache where a container loaded from cache did not have the expected `default_proc`, #86.

  - Richard Schneeman (@schneems) provided a patch that substantially reduces unnecessary allocations.

- Documentation:

  - Tibor Szolár (@flexik) fixed a typo in the README, #82

  - Fixed #80, clarifying the relationship of MIME::Type#content_type and MIME::Type#simplified, with Ken Ip (@kenips).

- Development:

  - Juanito Fatas (@JuanitoFatas) enabled container mode on Travis CI, #87.

- Moved development to a mime-types organization under mime-types/ruby-mime-types.

## 2.4.3 / 2014-10-21¶ ↑

- Bugs:

  - Restored Ruby 1.9.2 support by using `private_constant` conditionally. Fixes #77 found by Kris Leech (@krisleech). The conditional use of `private_constant` here will be removed for mime-types 3.0, when Ruby 1.9.2 support will be unconditionally removed.

## 2.4.2 / 2014-10-15¶ ↑

- Bugs:

  - Aaron Patterson (@tenderlove) found a loading bug and provided a fix that nearly doubled registry load performance (#74).

  - Godfrey Chan (@chancancode) provided a prophylactic security fix to use `JSON.parse` instead of `JSON.load` in #75. This provides a 20% improvement over the already improved result, resulting in a total 55% performance boost.

## 2.4.1 / 2014-10-07¶ ↑

mime-types 2.4 was pulled.

- Bugs:

  - Restored the extension sort order from mime-types 1.25.1 and modified MIME::Type#extensions to no longer sort extensions when set. This resolves #71 and should fix Paperclip.

- API Changes:

  - Added MIME::Type#preferred_extension to return the preferred extension for the MIME type. This should be used in preference to the current mechanism used by many clients, `type.extensions.first`. This will allow the implementation to change over time.

  - Added MIME::Type#friendly based on the concept presented by Łukasz Śliwa’s friendly_mime gem. The initial English data for this is pulled from `friendly_mime`.

  - Added MIME::Type#i18n_key and MIME::Type.i18n_key to represent and convert MIME content types as translation keys for the I18n library.

- MIME Type Development Tools:

  - Adding documentation to conversion methods.

  - Adding some robustness to missing Nokogiri support.

  - Extending coverage to fully cover new code. Tests now cover all of mime-types.

## 2.3 / 2014-05-23¶ ↑

- Bugs:

  - Fixed a bug in `MIME::Types#type_for` where type specifications that did not match a MIME::Type would be returned as `nil` inside the returned array. This was incorrect behaviour as those values should not have been returned, resulting in an empty array.

- MIME Type Development Tools:

  - As always, there are bugs in the IANA registry because it's manually maintained. Some robustness has been added to properly writing file template references where the file template reference is not a full media type specification (e.g., 'amr-wb+' instead of 'audio/amr-wb+').

  - Both the IANA and Apache import tools were unnecessarily case-sensitive in matching against already-existing MIME types, resulting in extra work to weed out duplicates that differed only in the case of the canonical content type. This has been fixed.

## 2.2 / 2014-03-14¶ ↑

- Clarified contribution guidelines for MIME types. Resolves #57.

- Fixed a small bug where deprecated methods would warn of deprecation when called by internal methods. Resolves #60.

- Dropped Code Climate; added Coveralls for test coverage reports.

- Removing external references to RubyForge, as it is shutting down. Resolves #59.

## 2.1 / 2014-01-25¶ ↑

- API Changes (MIME::Type):

  - Added MIME::Type#xrefs and MIME::Type#xref_urls that have better handling of types of reference information. MIME::Type#references has been deprecated. In a future release, both MIME::Type#references will be turned into a short-hand view on MIME::Type#xrefs, MIME::Type#urls will be an alias for MIME::Type#xref_urls, and MIME::Type#references will be removed.

- New or Updated MIME Types:

  - This information is now tracked in History-Types.rdoc.

- MIME Type Development Tools:

  - The IANA registry format changed, breaking the IANA registry tool previously used. Rewrote IANADownloader and IANADownloader::Parser as IANARegistryParser using the XML form.

  - The LTSW list has been dropped as it has not been updated since 2002.

  - The default Apache MIME types configuration list is now used to enrich MIME type data with additional extension information.

## 2.0 / 2013-10-27¶ ↑

- API Changes (General):

  - mime-types is no longer compatible with Ruby 1.8. Additionally, for its YAML operations (normally development and test), it requires a YAML parser that conforms to the Psych parser, not the Syck parser. This would only be a problem with an alternative Ruby 1.9.2 interpreter that does not implement the Psych parser conventions by requiring `psych`.

  - MIME::InvalidContentType has been renamed to MIME::Type::InvalidContentType.

- API Changes (MIME::Type):

  - Construction of a MIME::Type can be with any of the following objects:

    - An array containing a valid content type identifier and an optional array of extensions. This allows MIME::Type.new to be used instead of MIME::Type.from_array for the most common use-case. Fixes #43.

    - A Hash containing the output of MIME::Type#to_h, as would be deserialized from the JSON representation of a MIME::Type. This replaces MIME::Type.from_hash using a different parameter set.

    - Another MIME::Type.

    - A content type identifier string.

  - Assignment of an invalid encoding to MIME::Type#encoding will raise a MIME::Type::InvalidEncoding exception rather than a plain ArgumentError.

  - MIME::Type#url has been renamed to MIME::Type#references.

  - MIME::Type#use_instead is now tracked as its own attribute, not as part of MIME::Type#docs.

  - MIME::Type#system, MIME::Type#system?, MIME::Type#platform?, MIME::Type#to_a, MIME::Type#to_hash, MIME::Type.from_array, MIME::Type.from_hash, and MIME::Type.from_mime_type have been deprecated for removal.

  - Implemented YAML object encoding and decoding methods, MIME::Type#encode_with and MIME::Type#init_with.

  - Implemented JSON hash encoding methods.

  - Added MIME::Type#add_extensions to easily add extensions to a MIME::Type. Fixes #44.

- API Changes (MIME::Types):

  - MIME type caching has been extracted to its own class. It is structurally similar to what was introduced with mime-types 1.25, but is no longer considered an experimental interface.

  - MIME type loading has been extracted to its own class. Loading has changed substantially.

  - MIME::Types#[] accepts a new filter flag, :registered. The :platform flag has been deprecated.

  - The MIME::Types#type_for platform parameter has been deprecated.

  - Added the ability for MIME::Types#type_for produce results for multiple filenames or extensions by providing an array as the first parameter. Fixes #42.

  - MIME::Types#add_type_variant and MIME::Types#index_extensions have been deprecated as public methods. They will be private in a future version.

  - MIME::Types#defined_types, MIME::Types.cache_file, MIME::Types.add_type_variant, and MIME::Types.index_extensions have been deprecated for removal.

- Default Registry Changes:

  - The default registry is now a file in the directory data/, located via MIME::Types::Loader::PATH. `PATH` is defined in the file lib/mime/types/path.rb so that system packagers only have to modify one file in order to put the registry in a location that is not where a gem version of mime-types would expect it. This resolves issue #36, reported by @postmodern.

  - The default registry is now a single file in JSON format. This resolves issue #28 reported by @jasonlor (an error with mime-types in MacRuby).

  - The default registry is compiled from YAML files in type-lists/, resolving issue #37 reported by @postmodern requesting an easier-to-edit format.

- New or Updated MIME Types:

  - Major updates to the registered MIME type list from IANA using the improved developer tools.

  - Added:

    - application/xhtml+xml (HTML5)

    - multipart/x-mixed-replace (HTML5)

    - application/vnd.apple.pkpass (Apple PassBook) with extension pkpass.

  - Modified:

    - application/gzip (RFC6713) added extension (gz) and encoding.

    - application/epub+zip is not a registered MIME type.

    - application/rss+xml is not a registered MIME type.

    - application/x-director reported incorrect extensions.

    - application/x-gzip marked as obsolete (use application/gzip instead).

    - application/x-maker marked as obsolete (use application/vnd.framemaker instead).

    - image/webp is not a registered MIME type; added a URL to Google's proposed standard document.

    - text/html added URL to the HTML5 specification.

    - text/cache-manifest added URL to the HTML5 specification.

    - text/plain (VMS .doc files) marked as non-standard. This type will be merged with the standard text/plain type in a future release.

    - Added md, markdown, rst, and textile extensions to text/plain.

- MIME Type Development Tools:

  - The benchmarking task has been moved mostly to support/benchmarker.rb.

  - A task for SimpleCov coverage has been added (`rake test:coverage`).

  - IANA type registry downloading has been substantially improved and the implementation no longer resides in the Rakefile; it has instead been moved to support/iana_downloader.rb. This takes advantage of the new YAML encoding functionality to update added or modified MIME types non-destructively in `type-lists/` by default.

  - Rake tasks `convert:yaml:json` and `convert:json:yaml` provide functionality to convert the human-editable YAML format in `type-lists/` to the JSON format in `data/` and vice-versa. This is powered by support/convert.rb.

## 1.25 / 2013-08-30¶ ↑

- New Features:

  - Adding lazy loading and caching functionality to the default data based on work done by Greg Brockman (gdb).

- Bugs:

  - Force the default internal application encoding to be used when reading the MIME types database. Based on a change by briangamble, found in the rapid7 fork.

- New extensions:

  - mjpeg (video/x-motion-jpeg) based on a change by punkrats, found in the vidibus fork.

- Modernized Minitest configuration.

## 1.24 / 2013-08-14¶ ↑

- Code Climate:

  - Working on improving the quality of the mime-types codebase through the use of Code Climate.

  - Simplified MIME::Type.from_array to make more assumptions about assignment.

- Documentation:

  - LeoYoung <mrleoyoung@gmail.com> pointed out that the README.rdoc contained examples that could never possibly work because MIME::Types#[] returns (for all the versions I have handy) an array, not a single type. I have updated README.rdoc to reflect this.

- Removed Nokogiri as a declared development dependency. It is still required if you're going to use the IANA parser functionality, but it is not necessary for most development purposes. This has been removed to ensure that Travis CI passes on Ruby 1.8.7.

- New MIME Types:

  - 7zip (application/x-7z-compressed). Fixes a request by @kodram. #32

  - application/x-www-form-urlencoded. Fixes a request by @alexkwolfe. #39

  - Various new MIME types from IANA:

    - application/mbms-schedule+xml from 3GPP and Turcotte.

    - application/provenance+xml from W3C and Herman.

    - application/session-info from 3GPP and Firmin.

    - application/urc-grpsheet+xml, application/urc-targetdesc+xml, application/uisocketdesc+xml from Zimmermann.

    - application/api+json from Klabnik.

    - application/vnd.etsi.pstn+xml from Han and Belling.

    - application/vnd.fujixerox.docuworks.container from Tashiro.

    - application/vnd.windows.devicepairing from Dandawate.

    - video/vnd.radgamettools.bink and video/vnd.radgamettools.smacker from Andersson.

- Updated MIME Types:

  - RFC 6960 was adopted (application/ocsp-request and application/ocsp-response).

## 1.23 / 2013-04-20¶ ↑

- New Feature:

  - Arnaud Meuret (@ameuret) suggested that it could be useful if the MIME type collection was enumerable, so he implemented it in #30. Thanks for the contribution!

- Updated MIME Types:

  - RFC6910 was adopted (application/call-completion).

  - RFC6902 was adopted (application/json-patch+json).

  - RFC6917 was adopted (application/mrb-consumer+xml, application/mrb-publish+xml).

  - RFC6922 was adopted (application/sql).

  - RFC2560 is being updated.

- Administrivia:

  - The gemspec now includes information about the licenses under which the mime-types gem is available.

  - Using hoe-gemspec2 instead of hoe-gemspec.

## 1.22 / 2013-03-30¶ ↑

- New MIME Types:

  - Added support for 3FR (Hasselblad raw images) files. MIME-Type was obtained by looking at exif data with exiftool. Thanks to cgat for these changes. #27

- Updated MIME Types:

      * Pulled the latest updates from the IANA MIME-Type registry.

- Added support for Ruby 2.0 with Travis CI.

## 1.21 / 2013-02-09¶ ↑

- New MIME Types:

  - Various new or updated MIME types by Garret Alfert: application/vnd.ms-fontobject, .eot; application/x-chrome-extension, .crx; application/x-web-app-manifest+json, .webapp; application/x-xpinstall, .xpi; image/svg+xml, .svg, .svgz; image/webp, .webp; text/cache-manifest, .appcache, .manifest. #24

- Fixed some Manifest.txt related madness on Travis.

## 1.20.1 / 2013-01-26¶ ↑

- New MIME Types:

  - Apple iWork document types added by Hans de Graaff (application/x-iwork-keynote-sffkey, .key; application/x-iwork-pages-sffpages, .pages; application/x-iwork-numbers-sffnumbers, .numbers). #20

  - epub, ibooks, mobi, and DMG content types by Mauricio Linhares (mac:application/x-apple-diskimage, .dmg; application/epub+zip, .epub; application/x-ibooks+zip, .ibooks; application/x-mobipocket-ebook, .mobi). #22

  - rss content type by Garret Alfert (application/rss+xml, .rss). #23

  - Added or updated MIME types from the latest IANA list.

- Fixed MIME Types:

  - Excel macro-enabled spreadsheets had an incorrect extension. Thanks to Rafael Belvederese for reporting this issue. #21

- Enabled for use with travis.

- Enabled gem signing.

- Fixed an error related to MIME type downloads.

- This was previously published as 1.20, but I had forgotten some attributions.

## 1.19 / 2012-06-20¶ ↑

- New MIME Types:

  - XCF Gnome Images (image/x-xcf, image/x-compressed-xcf; .xcf). #17

  - Types reported in #12:

    - DV (video/x-dv; .dv)

    - IVF (video/x-ivf; .ivf)

    - Matroska (video/x-matroska; .mkv)

    - Motion JPEG (video/x-motion-jpeg; .mjpg)

    - RealMedia (official; application/vnd.rn-realmedia; .rm)

- New extensions:

  - dcm (application/dicom); #16.

  - Types reported in #12:

    - 3g2, 3gpp2 (video/3gpp2)

    - mpeg (video/mpeg)

    - mxf (application/mxf)

    - ts (video/MP2T)

    - ogg (video/ogg)

- Fixed MIME Types:

  - Adobe AIR application installer packages was missing a hyphen. #13

  - Types reported in #12:

    - audio/x-pn-realaudio extension is .ra, not .rm.

- Resolved #8. Apparently some people run the tests on Linux. Imagine that.

## 1.18 / 2012-03-20¶ ↑

- New MIME Types:

  - Types reported in #6:

    - CoffeeScript (text/x-coffeescript; .coffee; 8bit).

    - AIR (application/vnd.adobe.air-applicationinstaller-package+zip, .air; base64).

    - WOFF (application/font-woff; .woff; base64).

    - TrueType (application/x-font-truetype; .ttf; base64).

    - OpenType (application/x-font-opentype; .otf; base64).

  - WebM (audio/webm, video/webm; .webm). #11

- New extensions:

  - f4v/f4p (video/mp4, used by Adobe); f4a/fb4 (audio/mp4, used by Adobe).

- Bug Fixes:

  - It was pointed out that Licence.txt was incorrectly named. Fixed by renaming to Licence.rdoc (from Issue/Pull Request #8).

  - It was pointed out that a plan to have the test output generated automatically never went through. #10

## 1.17.2 / 2011-10-25¶ ↑

- Bug Fixes:

  - Fixed an issue with Ruby 1.9 and file encoding.

## 1.17.1 / 2011-10-23¶ ↑

- Minor Enhancements:

  - Implemented modern 'hoe' semantics.

  - Switched to minitest instead of test/unit.

  - Converted documentation from .txt to .rdoc.

  - Removed setup.rb. #3

  - Should no longer complain about missing RubyGems keys #2

  - Added .mp4 and .mpg4 as recognized extensions for (application|audio|video)/mp4 per RFC4337. #1

  - Added audio/x-aac and .aac per RubyForge issue #28054.

  - Made it much easier to update MIME types from this point forward.

  - Updated MIME types from IANA.

## 1.16¶ ↑

- Made compatible with Ruby 1.8.6, 1.8.7, and 1.9.1.

- Switched to the 'hoe' gem system and added a lot of build-time tools.

- Updated the MIME types to the list based on the values in the Perl library version 1.27. Also updated based on external source information and bug reports.

- This is the last planned version of MIME::Types 1.x. Work will be starting soon on MIME::Types 2.x with richer data querying mechanisms and support for external data sources.

## 1.15¶ ↑

- Removed lib/mime/type.rb to form a single MIME::Types database source. It is unlikely that one will ever need MIME::Type without MIME::Types.

- Re-synchronized the MIME type list with the sources, focusing primarily on the IANA list.

- Added more detailed source information for MIME::Type objects.

- Changed MIME::Types from a module to a class with a default instance. There should be no difference in usage.

- Removed MIME::Types::DATA_VERSION; it is now an attribute on the MIME::Types instance.

- NOTE: Synchronization with the Perl version of MIME::Types is no longer a priority as of this release. The data format and information has changed.

- Removed MIME::Types.by_suffix and MIME::Types.by_mediatype.

## 1.13.1¶ ↑

- Fixed a problem with the installer running tests. This now works.

- Improved the implementation of MIME::Type#signature?

- Moved code around to use the class << self idiom instead of always prepending the module/class name.

- Added two new best-guess implementations of functions found in Perl's MIME::Types implementation (1.13). Do not rely on these until the purpose and implementation is stabilised.

- Updated the MIME list to reflect changes noted by Ville Skyttä <ville.skytta@iki.fi>.

- Added a new constant to MIME::Types, DATA_VERSION. This will allow the Ruby version number to be updated separately from the Perl version while keeping the MIME Type list version in sync.

## 1.13¶ ↑

    ! WARNING: This version changes the API of MIME::Types !
    ! WARNING: This version is compatible with Ruby 1.8 and higher ONLY !

- Removed dependency on InstallPackage; offering 1.13 as either .tar.gz or .gem.

- Split into two files, mime/type.rb and mime/types.rb. This will make maintaining the list of changes easier.

- Changed the MIME::Type construction API. Accepts only a single String argument (but does no named type-checking) and yields self.

- Removed private methods init_extensions, init_encoding, and init_system and replaced with extensions=, encoding=, and system=.

- Added default_encoding to return 'quoted-printable' or 'base64' depending on the media type of the MIME type.

- Added raw_media_type and raw_sub_type to provide the non-simplified versions of the media type and subtype.

- Alternative constructors MIME::Type.from_array, MIME::Type.from_hash, and MIME::Type.from_mime_type added to compensate for the removal of named type checking in the original constructor.

- Added to_str, to_a, and to_hash methods. The latter two will provide output suitable for use in from_array and from_hash.

- Removed “binary” encoding and enforced the use of a valid encoding string.

- Added system? returning true if the MIME::Type is an OS-specific MIME::Type.

- Added platform? returning true if the MIME::Type is an OS-specific MIME::Type for the current RUBY_PLATFORM.

- Added like? returning true if the simplified type matches the other value provided. #<'application/x-excel'>.like?('application/excel') is true.

- Added complete? returning true if the MIME::Type specifies an extension list.

- Updated the MIME type list to reflect additions by Mark Overmeer for Perl's MIME::Types 1.12 and the official IANA list as of 2004.04.06. A number of formerly “registered” MIME types are now no longer registered (e.g., application/excel is now application/x-excel). This ensures that the simplified type still works with applications, but does not report an unregistered type as registered.

- Restored MIME type list to Mark Overmeer's format to facilitate easy exchange between the two projects.

- Added additional unit tests from Mark Overmeer's 1.12 version.

## 1.07¶ ↑

- Changed version numbering to match Perl MIME::Types 1.07.

- Re-synchronized with Mark Overmeer's list in Perl PMIME::Types 1.07.

- NN Poster

    updated the attributes for the PGP types.

## 1.005¶ ↑

- Changed to Phil Thomson's InstallPackage.

- Added several types from Perl MIME::Types 1.005.

- Cleaned up data format; some data formats will show up with proper data now.

## 1.004¶ ↑

- Updated to match Perl MIME::Types 1.004, links credited to Dan Puro. Adds new reference list to www.indiana.edu/cgi-bin-local/mimetypes

- Removed InvalidType and replaced with TypeError.

- Changed instances of type to class.

- Cleaned up how simplified versions are created.

## 1.003¶ ↑

- Initial release based on Perl MIME::Types 1.003.