The following things were changed or corrected:
- IDProvider.conf.php and config.php are not overwritten anymore by upgrades
- Logging to Syslog now works properly and is more consistent
- Access log now locks file before appending content
- 'Unknown' category is not shown anymore when there is no other category
- Namespaces are now taken properly into account when parsing SAML2 metadata
- Improved installation instructions
Special thanks go to Olivier Salaün from CRU (France) for reporting many of these issues, for submitting patches and for proposing new improvements.