Option to specify the percentage of health below which the player and mob bars should be displayed (show-condition: below-x%)
Ability to display mob health bars (for a limited time or permanently) when hitting or looking at them (show-condition: on-damage-or-look)
Other
Replaced player-bars.always-shown, mob-bars.always-shown, and mob-bars.show-only-if-looking with the clearer and more flexible show-condition configuration. An updated version of the config can be found in the wiki. Please update it!