Chinese speaker here with a rough translation of the important points.
Game feature
Added spectator mode for duels. You can enter "/spectate name" or right click someone in your friends list and choose to spectate. The character you wish to spectate must be on your friends list and in a dueling area. You also need to have the level and quest requirements of that area. You can leave by entering "/town" to return to your town. During spectator mode, you can use arrow keys to move your screen.
Continue to improve sound, art, special effects, and scenery design.
General Balance
Strongboxes will randomly appear in Wraeclast. These strongboxes are guarded by powerful monsters. When they are touched, these monsters will swarm the player. You can only open the box when you have slain all the monsters guarding the strongbox. Like items, strongboxes can be normal (white), magic (blue), rare (yellow), and unique. Players can also use currencies to change a strongbox's mods and rarity. Prefixes on strongboxes affect the strengths of the monsters, such as additional monsters, traps, or other hindrance to your character. Suffixes affect the rewards.
Quivers are redesigned. Their properties are changed according to the arrow tips they have.
Bows can now deal more damage. Additionally, some bows now have higher base critical chance.
The base attack speed of early level weapons have been increased.
Higher level health potions now recover much more health than lower level ones. Additionally, we have added two higher level health potions, at lvl 65 and lvl 70.
Added two new mana potions, at level 65 and lvl 70.
Shocked status effect has been improved to 50% increased damage, but no longer stacks.
Skill gems and support gems balance
Duelist's starting gem changed to Dual Strike (Or Double Strike, not clear from translation).
Shadow's starting gem changed to Viper Strike.
Early rewards are changed.
Many skills' mana costs are reduced.
Many support gems' mana multipliers are reduced.
Curse on hit now has 100% chance to curse when you hit an enemy. At level 1, it reduces the effect of the supported curse by 10%, at level 20, it increases the effect of supported curse by 9%. Quality bonus stays the same
Clarity is nerfed.
Arc is nerfed.
Flameblast is nerfed.
Ball Lightning is buffed.
Ice Spear is buffed.
Anger is nerfed at higher levels.
Wrath is nerfed at higher levels.
Spectral throw is nerfed.
Block Chance Reduction support gem is nerfed by 10% block chance across all levels.
All curses have been nerfed. New nodes in the passive tree have been added to increase the effectiveness of curses.
Passive Tree
Witch's starting area is drastically changed.
Shadow's starting area is partially changed. Now it roughly separates into physical and elemental areas.
The area near Witch, Shadow, and Ranger have been changed. Notables and Keystones have been moved outwards
We have added notables to all small clusters outside of the starting areas.
Bug Fix
fixed a bug when the UI becomes abnormal when accepting and declining multiple trade requests simultaneously