Patch 2.5.4 (28 July 2014)
Massively reduced bandwidth and packet count used by the game. The exact results vary depending on the gameplay situation: the less opponents are in view, the stronger the effect. Bandwidth has been reduced by between 35% and 50%. Packet count has been reduced by between 20% and 65%.
Players with fast internet connections will probably hardly notice this change, but players with mediocre internet will hopefully get less disconnects and lag spikes now.
This patch contains no new features, only these network optimisations.