Valve has updated patch 7.30
Dota 2 Updates
On September 26, Valve released a small update for patch 7.30. The new version of the game is called 7.30d. The list of changes looks like this:
Tinker: Defense Matrix damage block rescaled from 100/180/240/320 to 100/180/240/320
Timbersaw: Chakram second disc damage increased from 100/140/180 to 110/155/200
Naga Siren: Mirror Image cooldown reduced from 40/30/30/25 to 40/35/30/25