If the API changes in an incompatible manner this is listed explicitly in the "important release notes" section of each releases changelog.
Provides access to the languages available in the application.
GET / POST / PUT / DELETE
A human readable name of the language
|The lcid for that language.|
The rfc5646 representation (for example "en-gb")
|Defines if the language should be rendered from right to left in the editor.|
|The iso6393 representation of the language|
|Localized name of the language (ex: German / Deutsch )|