A major update with a small fix that changed the output of the avatars in some cases. As soon as a fix changes the output of the avatars, we release a major update to ensure that the avatars of a major version remain consistent. This update is backwards compatible and should not cause any issues.
A bug with random backgrounds has been fixed. These were not consistent between browsers due to their implementation. This problem has been fixed and the backgrounds should now be calculated identically in all browsers.
Further information on this bug can be found in this issue: #394