AoE balance fixes:

• All AoE abilities are moving to standardized ranges and coverage, based on their type (Melee "Cleave", Conical AoE, Line AoE, PBAoE, or Targeted AoE).

Crowd control changes:

• All Immunities Persist Through Death: Pretty simple one here, no more Stun -> Dead -> Rez -> Stun -> Dead.
• Increased Duration of Disable Immunities: Immunities for the disable family of CC (knockdown, stun, disarm, and silence) will have their immunity timers increased from 6 times the effect duration to 10 times the effect duration. In other words, if you are stunned for three seconds, in 1.3 you would have an 18-second immunity. With this change, that same immunity would be 30 seconds.
• Root Immunity and Knockback/Pull Immunity Combined: We're rolling root immunity and knockback/pull immunity together into a single "movement immunity" effect. This immunity will remain for 30 seconds, and will prevent you from things such as being pulled in, then immediately rooted in place, making it a much more tactical decision about whether it's better to stop an enemy in place or move them around.
• New Renown Purchase Ability: We are releasing a new Renown Point purchasable ability at Renown Rank 40 that will be a "CC immunity" that players can trigger for temporary CC immunity. This should help break up the "I get CC'd at the beginning of a fight and there is nothing I can do about it" issues.

Read more here.