While guest with view permission visiting the D&M portlet, it will cause an exception.
Upgrade process to 6.2 fails
Signing in 6.2.x fails after upgrading from 6.1 because of PwdEncryptorException
An console error is thrown when triying to sort by size a document library list
Cannot upgrade from 5.2.3, 6.0.6, and 6.1.1 to Trunk - "Unknown column 'Layout.hidden' in 'field list'"
Cannot upgrade from 5.2.3, 6.0.6 to Trunk - "Unknown column 'Role_.uuid_' in 'field list'"
See comments in https://github.com/brianchandotcom/liferay-portal/pull/7812
Portal 6.2.x GIT ID: 6866b94df3030b33db5efdd2cad11167a4c596c6.
This issue hasn't actually been solved yet