Class Set Revisions

The theme of this patch is balance. Blizzard has taken a look at all class performance in Greater Rifts and made several changes to even out the many gameplay styles as much as possible.
We can expect buffs no matter which hero we favour. For example, the Wrath of the Wastes set has been revised. In addition to getting a boost in damage, the damage reduction now lasts an addition 3 seconds if you have acquired the bonus by the 4-piece set. The Necromancer is not being left out either. Players may now feel a bit more comfortable, hearing that the double-life cost from the 6-piece set bonus has been removed.

Skill Changes

The Crusader's rune "Blessed Hammer" has been redesigned.
The addition projectiles were causing performance issues in high-density areas and to compensate the rune's base damage, as well as its area of effect, got increased.

Other changes were more basic, for example, the Arcane Orb (Frozen Orb) could not benefit from either the Power Hungry or Audacity passives due to its explosion range.
This got increased to 40 yards (up from 15 yards), to make the intent of this skill's synergies more clear.

Item Revisions

Many Legendary items were changed as well to help with tuning. The large majority of these are number tweaks.

Band of Might Changes | Source: Patch Notes 2.6.1  
Blade of Prophecy Changes | Source: Patch Notes 2.6.1 
Intense Torch Of The Grand Temple Changes | Source: Patch Notes 2.6.1 
Dayntee's Binding Changes | Source: Patch Notes 2.6.1  
The Short Man's Finger Changes | Source: Patch Notes 2.6.1
The Grand Vizier Changes | Source: Patch Notes 2.6.1

Patch 2.6.1 is on its way and will make the gameplay options more diverse and unique than ever.