0.9.9 is live, featuring frenzy (a kill reward system), disarming, explosive tweaks, three new stages, and more.

Get the details, and the full changelog here or in the changelog file: http://blog.dwarvesmightfly.com/2015/06/099-dwarf-goes-wroom-frenzy-disarming.html
Partial changelog:
- Frenzy: each non-team kill (with more than 2 players or with respawn modes with any player count) now earns a player +20 hp (heal, "+" & green damage numbers) and a stackable frenzy boost that stays until dead; +3% cooldown reduction (see below) & +2% movement speed per "level", starts at zero, five levels cap
- Disarming: certain attacks, great instant knockbacks, and falling damage greater than 30 now unarm the target dropping all weapons and prevents from picking anything for the next second
- Three new stages: Climb, Float, and Heap
- Grenade is now semi-volatile; exploding on player touch (still bounces of other colliders)
- Fire Flask now always has its first explosion at the hit position, explosion positions after that remain random
- Volatile (explode-on-touch) explosives now collide with the player that threw them (after 0.5 seconds from throw)
- Volatile explosives have a fraction of a second "cooldown" before they can be triggered (fixes the "behind the back" explosives triggering immediately if touching someone)
*snip, too long*