Log Message:
CHANGES IN CUPS V2.2.3
- The IPP backend could get into an infinite loop for certain errors,
  causing a hung queue (<rdar://problem/28008717>)
- The scheduler could pause responding to client requests in order to
  save state changes to disk (<rdar://problem/28690656>)
- Added support for PPD finishing keywords (Issue 4960, Issue 4961,
  Issue 4962)
- The IPP backend did not send a media-col attribute for just the source
  or type (Issue 4963)
- IPP Everywhere print queues did not always support all print qualities
  supported by the printer (Issue 4953)
- IPP Everywhere print queues did not always support all media types
  supported by the printer (Issue 4953)
- The IPP Everywhere PPD generator did not return useful error messages
  (Issue 4954)
- The IPP Everywhere finishings support did not work correctly with
  common UI or command-line options (Issue 4976)
- Fixed an error handling issue for the network backends (Issue 4979)
- The default cupsd.conf file did not work on systems compiled without
  Kerberos support (Issue 4947)
- The "reprint job" option was not available for some canceled jobs
  (Issue 4915)
- Updated the job listing in the web interface (Issue 4978)
- Fixed some localization issues on macOS