This is a maintenance release to fix common issues reported in 4.1.4. Some specifics include:
- Memcache issues
- Errors when issuing a warning
- Errors when editing members
- Default sort order in containers not honored
- PHP error when submitting a new file in Downloads
- An XSS (Cross site scripting) issue was discovered with private message titles that has been resolved in this release.
- An issue where content titles (such as topic titles) from private forums may be exposed under certain search conditions and has been patched in this release.