Release 7.x-2.4 of media 7.x-2.x branch, improved support for upgrades from 7.x-1.x to 7.x-2.4 (please read the full release notes).
If you are on 7.x-2.x already and plan on delaying upgrading to 7.x-2.4 then please follow the security recommendations below:
Prevent anonymous or untrusted users from accessing the media browser through permissions configuration.
go to /admin/people/permissions and restrict access to “Use the media browser” to only trusted roles. Otherwise it is recommended you upgrade to 2.4 as soon as possible.
If on 7.x-1.x , please upgrade to 7.x-2.4 (or upgrade to 7.x-3.0-alpha8) soon, please refer to these notes and issues for upgrading from 7.x-1.x to 7.x-2.4;
Please note, if you are using this release in combination with entity_translation you must then upgrade entity_translation to entity_translation beta6.