Aion Community Manager Andrew "Tamat" Beegle has posted this month's Eye on Community letter, where he answers a question regarding the differences between the 1.9 vs. 2.0 game updates with regards to the Western version of Aion.
Read the Q&A below:
"Seeing chatter about two patches, 1.9 and 2.0, at the same time confuses me. What's the difference between the two, and will there be a difference between their release here and in Korea?"
Aion in Korea is always a bit ahead of Aion here in the West in terms of game version. Sometimes we get updates more quickly, and other times, they take us longer to roll out because we have to do more work behind the scenes to implement them. If an update contains a large amount of content that requires localization into English, French, and German, it takes longer to implement the update.
We are fairly on-par in game version with other territories right now since all regions are currently running version 1.5 of Aion. Aion was recently updated to 1.9 on the Korean Public Test Server, but aside f Aion that, there hasn't been an announced date for when 1.9 will go live across all servers in Korea. Likewise, we haven't announced when we will be implementing 1.9 on our North American and European servers, but we are currently working on the localization of 1.9. We are very excited and want to get update 1.9 in the hands of players as soon as it is ready. Version 2.0 refers to a future update that Korea has announced in name only. There are no solid dates for any territories for version 2.0 at this time.