Changes:

• Fixed a major bug in previous 3.0.x versions that caused "ALL" worlds to not track the timer properly
  • It is highly recommended to update to this version if you were previously on any 3.0.x version
• Improved the clarity of a comment in the config (see below)
• (3.0.0) All PAPI placeholders now require you to specify the world name
  • %entityclearer_remaining_minutes_<world>%
  • %entityclearer_remaining_seconds_<world>%
  • %entityclearer_remaining_seconds_left_<world>%
• Slightly improved the debug output

The config changes can be found here