Straight from the official patch notes:
Absorb Shock
- Can now be trained up to Rank 6.
- Perfect Absorb Shock can now be triggered during the first part of smash attacks performed with the Battle Pillar.
- Recovery speed has been increased.
- The allowed Absorb Shock trigger time from Dropkick has increased.
War Slam
- Can now be linked after all smash attacks.
- You can now change directions when using War Slam.
- Stamina cost will now be based on the skill’s rank.
- At Rank 6, Active: Crushing Sweep can now be linked after War Slam.
- A 5 stage status will be applied after linking War Slam and Active: Crushing Sweep. The higher the stage, the higher the bonus damage and the more stamina recovered when Crushing Sweep is performed.
Pillar Toss
- Can now be trained up to Rank 6.
- Damage and knock down damage have been increased.
- Smash Mastery will now affect Pillar Toss.
- Time taken for pillar to return has been reduced.
- You can pick up the pillar while dodging with the grab button (only works while near pillar).
- Strength Recovery added after Pillar Toss.
- Fatigued Arms debuff removed after Pillar Toss. Pillar can be tossed freely.
Active: Howl
- Can now be trained up to Rank 6.
- Will now be applied to party at Rank 9 and above.
Active: Earthquake
- Can now be trained up to Rank 6.
- Slow effect has been removed.
- Will now stun monsters.
Active: Whirlwind
- Can now be trained up to Rank 6.
Active: Crushing Sweep
- Can now be trained up to Rank 6.
New Skill: Pillar Counter
- Can be learned after achieving Rank A in Absorb Shock. - Inflicts additional damage when absorb shock triggers during a Smash attack. - More damage and knockdown at higher ranks.
New Skill: Jumbo Pounce
- Perform an extra attack after performing a smash hit.
- More damage and knockdown at higher ranks.
Additional Changes
- Basic Clash damage has increased.
- Clash will now deal additional damage based on how long it’s maintained.
- Normal and smash attack range have been increased.
- Basic kick attack, speed and decision method will be updated.
- Karok's Power Grab prioritized over Evil Core.
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Still waiting on better changes for Lann, if not a complete overhaul.