+CHANGES IN CUPS V1.6.4
+
+ - Removed some duplicate size definitions for some ISO sizes that were
+ causing problems (<rdar://problem/14722721>)
+ - The IPP backend did not add the "last-document" attribute
+ (<rdar://problem/114660379>)
+ - Added a SyncOnClose directive to cups-files.conf to force cupsd to
+ call fsync before closing any configuration/state files it writes
+ (<rdar://problem/14523043>)
+ - Added USB quirk rule for Lexmark E238 (<rdar://problem/14493054>)
+ - Closed server connections were still not always detected
+ (<rdar://problem/14484313>)
+ - The libusb-based USB backend now loads its list of quirks from files
+ in /usr/share/cups/usb instead of using a hardcoded table
+ (<rdar://problem/14442769>)
+ - The scheduler did not properly register ICC color profiles with
+ colord (<rdar://problem/14455625>)
+
+
+CHANGES IN CUPS V1.6.3
+
+ - The configure script now prefers Clang over GCC.
+ - Fixed a compile problem on AIX (STR #4307)
+ - The default IPP version did not always get set before creating a new
+ IPP request message (<rdar://problem/14401718>)
+ - The lp, lpq, lpr, and lpstat now display an error message advising the
+ use of the /version=1.1 ServerName option (<rdar://problem/14290628>)
+ - Added documentation about the /version=1.1 option to ServerName in
+ client.conf (<rdar://problem/14216262>)
+ - httpStatus(HTTP_ERROR) did not return a useful error message
+ (<rdar://problem/14217326>)
+ - The lp, lpq, lpr, and lpstat commands incorrectly ignored the default
+ printer set in the lpoptions file (<rdar://problem/14216472>)
+ - Fixed a URI encoding issue for hostnames containing the ` (backquote)
+ character (<rdar://problem/14243133>)
+ - Added support for RFC 6874's IPv6 link local address format in URIs
+ (<rdar://problem/13979453>)
+ - The USB backend could crash on libusb-based systems if USB was
+ disabled in the BIOS (<rdar://problem/13875729>)
+ - Fixed a rounding error in the PWG media size mapping code
+ (<rdar://problem/13493241>)
+ - Fixed several ipptool test files that used old STATUS names.
+ - Kerberos credentials could get truncated when printing to a shared
+ printer.
+ - Printing using "ipps" URIs was not encrypted.
+ - Insecure ICC profiles prevented installation of user profiles for a
+ printer on OS X.
+ - Added more USB quirks for the libusb-based backend (STR #4311,
+ <rdar://problem/13736470>)
+ - The Russian web interface templates were broken (STR #4310)
+ - The scheduler no longer tries to do Kerberos authentication over the
+ loopback interface.
+ - The IPP backend could fail to pause a job for authentication
+ (STR #4298)
+ - Fixed a regression on the handling of auth keys on OS X if the
+ cups-files.conf was not present or did not contain a SystemAuthKey
+ value.
+ - The scheduler incorrectly did a reverse lookup of the server address
+ when HostNameLookups was turned off (STR #4302)
+ - The scheduler incorrectly computed the final content type value when
+ null filters were present.
+
+