The incompatibilities with macOS 10.11 El Capitan have been solved.
On El Capitan, conversion results and meeting details can now be saved to a note or added to a reminder by clicking the Share button.
Conversion results and meeting details can now be copied to the Clipboard by choosing Copy Conversion/Copy Meeting Details from the Edit menu or using the Command-C keyboard shortcut.
The system font is now the default font of the Clocks palette on all system versions, including macOS 10.9 or later.
The font of the Clocks palette and the Font pop-up menu in the Palette pane of World Clock Deluxe Preferences are now updated when fonts are disabled or enabled using Font Book.
A bug, introduced in version 4.15, that affected the "Slide horizontally" and "Slide vertically" transition effects of the Clocks palette has been fixed.
Several other minor improvements have been introduced.
Cities, Time Zones, DST Rules 4.15.1.1 - October 2015
The offset from UTC of Norfolk Island has been updated. Norfolk Island moved from UTC+11:30 to UTC+11 at 2:00 AM on October 4, 2015.
Daylight-saving time information for Fiji and Turkey has been updated. Fiji will end daylight-saving time on January 17, 2016, while Turkey will end daylight-saving time on November 8, 2015, two weeks later than usual, due to general election on November 1.
Cities, Time Zones, DST Rules 4.15.1.2 - November 2015
The offset from UTC of the Antarctic stations Casey and Concordia has been updated. Both stations moved from UTC+8 to UTC+11.
Daylight-saving time information for the Cayman Islands has been updated. Next year, the Cayman Islands will observe daylight-saving time for the first time, most probably following the United States rule.