Test realm - not the live game
The Thief got a full review, skill by skill.
New skill: Venom Splasher. A finisher that spends all your LP: 220% of ATK plus 50% per LP spent (up to 5), and 1.5 times the damage on a poisoned enemy. Needs at least 1 LP; 10 SP, 5 second cooldown.
Envenom: now a 3 m stab, +25 damage per level, 20% to 65% poison chance, and +1 LP when it hits.
Hiding: you can walk while hidden; your first hit from Hiding on a monster deals +10% damage per level. Cooldown 5 seconds.
Double Attack: the double cut now plays, with its own hit effect and sound, and shows the full damage as one big number.
Steal: the grab is twice as fast. When a Steal gets nothing, MISS shows on the monster.
Sand Attack: a big sand cloud. A blinded monster now shows the Blind icon under its name; while blind it hits and dodges 25% less.
Detoxify: can now cure another player (9 m).
Rapid Run: glowing sparks while it lasts.
Find Stone: any weapon, no SP, its own stone icon. Throw Stone is greyed out without a Stone.
Short Sword Mastery: +4 ATK per level with a dagger.
Equipment window: ATK now shows your hit range in one line (lowest ~ highest hit, before the monster's defence).
New and clearer tooltips for all of these.
New client: the launcher updates it for you. Restart the game after the update.