Changelog

Version: 1.1.1
Date: 2022-07-16
  Bugfixes:
    - Fixed a crash if a spawner died, then another one was created with the same position.

Version: 1.1.0
Date: 2022-07-14
  Features:
    - Nuclear ground blocks biter worms/nests.
    - Nests take damage when they spawn an enemy. Their current health closely reflects how near they are to dying.
  Changes:
    - Biters ranching distance reduced to 25 tiles. Should not be misfiring on non-ranched biters
    - Dying nests also kill some, but not all, nearby worms.

Version: 1.0.2
Date: 2020-11-26
  Changes:
    - Updated for Factorio 1.1

Version: 1.0.1
Date: 2020-07-29
  Bugfixes:
    - Cleanup code no longer erases all tracking info.  (Only fired every 4.5 hours)

Version: 1.0.0
Date: 2020-07-29
  Features:
    - Initial release