I think more people should think about Surrendering once Season 6 hits

Taken from the patch notes on Surrender at 20

_Minions NEW Pushing advantage Minions get combat bonuses when your team has a level advantage over the opposing team

Comboing with the turret changes above, minions now get stronger to help the winning team press their advantage and close out the game

MINION DAMAGE BONUS If your team's average level is higher than the enemy's, your minions deal 10% bonus damage to enemy minions. If you've taken cumulatively more turrets than the enemy team, damage is further increased by 10% for each turret you have over your opponents.

ENRAGE If your team's average level is at least 3 higher than the enemy's and you've taken 2 or more towers in a given lane, your minions in that lane deal 90% more damage to enemy minions.

MINION DAMAGE REDUCTION If your team's average level is higher than the enemy's, your minions take less damage from enemy minions equal to (tower differential x level differential) + 1. This number can't fall below 1.

IRONCLAD If your team's average level is at least 3 higher than the enemy's and you've taken 2 or more towers in a given lane, your minions in that lane take 7 less damage from enemy minions._

I mean, damn. I know Riot doesn't want games to drag on but this is brutal. It also makes Tryndamere and Nasus and other splitpushers more viable too.