TYPO3 Core

The Typo3 Session-content size is limited to 65536 bytes. (that is, using the $GLOBALS["TSFE"]->fe_user->getKey and setKey functions, you can't store more that 65Kb data).

This is easily fixed in the fe_session_data
table by setting the 'content' field type to MEDIUMBLOB, which allows up to 16 Mb of data (or LONGBLOB, wich allows up to 4 Gb of data)

MySQL query :
ALTER TABLE `fe_session_data` CHANGE `content` `content` MEDIUMBLOB NOT NULL

(issue imported from #M341)