Seems like Riot is trying to make leveling up accounts a little bit harder.
- AFK detection reduced to 3 minutes (from 8)
- The game now kicks you at 5 minutes (previously 12 minutes)
- The minimum time custom games need to last to be eligible for IP/XP rewards has been increased to 7 minutes (previously 5 minutes)
- A minimum number of human players must now participate in a custom game to receive IP/XP rewards. The current thresholds are:
5 players minimum for Summoner’s Rift, Crystal Scar, and Howling Abyss
3 players minimum for Twisted Treeline - A notification has been added in the end of game results screen to explain why players did not receive IP/XP