Dota 6.84c ChangeLog

Haste rune duration reduced from 30 to 25
* Mekansm cooldown increased from 45 to 65
* Tether movespeed bonus reduced from 17% to 14/15/16/17%
* Rocket Barrage damage reduced from 11/15/19/23 to 8/13/18/23
* Bristleback Base Attack Time increased from 1.7 to 1.8
* Precision Aura's passive no longer has an exception for pseudo-heroes like Familiars (still affects them when cast, like creeps)
* Spiderlings Poison Sting slow reduced from 15 to 12%
* Holy Persuasion now provides a base HP minimum of 700/800/900/1000 instead of raw bonus HP
* Tombstone HP reduced from 200/400/600/800 to 175/350/525/700

* The fixed portion of the XP Hero Bounty for first 5 levels is reduced from 100/120/160/220/300 to 100/120/140/160/180 (then continues +100 per level as usual)
* AoE Gold Bounty, for teams that are behind, now has a small additional component that doesn't fully scale with net worth (100/75/50/35/25 for 1/2/3/4/5 heroes, scales linearly from 0 to 4k net worth difference)
* Small adjustments to AoE Gold (non-networth component)

Old:
1: 154 + 7.7 * Level
2: 115.5 + 6.6 * Level
3: 66 + 5.5 * Level
4: 38.5 + 4.4 * Level
5: 33 + 4.4 * Level

New
1: 150 + 8 * Level
2: 100 + 7 * Level
3: 40 + 6 * Level
4: 25 + 4 * Level
5: 20 + 4 * Level