Gracia Final will be going live on Tuesday, April 28th, 2009! The estimated maintenance period for this launch is 8:00 AM to 2:00 PM Central. Once the maintenance period is complete the Lineage II 5th Year Anniversary Event will start. So the Lineage II: Gracia Final expansion, and 5 years of Lineage II all on April 28th!

There are a number of changes will occur during this maintenance period. The important one is:
Castle Siege and Clan Rights Changes.

1. Castle Siege Time Change

With the launch of the Gracia Final expansion, there will be a change in all castle siege times. Starting with the launch of Gracia Final, all castle sieges which used to be on Saturday and Sunday will be moved to Sunday between 16:00 - 18:00 and 20:00-22:00 Central time. This change is due to the new addition of territory battles.

Bartz, Devianne, Teon, Luna, Aria:

First castle sieges after Gracia Final will occur on Saturday, May 9th, and Sunday, May 10th - Same as before.
Once these sieges are complete, the Clan Lord will only be able to choose times on Sunday for all subsequent castle sieges.
First Territory War will start on Saturday, May 23rd.
First Sunday-only castle sieges start on Sunday, May 24th.

Franz, Sayha, Phoenix:

First castle sieges after Gracia Final will occur on Saturday, May 2nd, and Sunday, May 3rd - Same as before.
Once these sieges are complete, the Clan Lord will only be able to choose times on Sunday for all subsequent castle sieges.
First Territory War will start on Saturday, May 16th.
First Sunday-only castle sieges start on Sunday, May 17th.

2. Clan Rights Reset

Additionally, with the launch of Gracia Final, all Clan Rights will be reset. Therefore, Clan Lords will need to reapply any Clan Rights which were in place prior to the launch of Gracia Final. We apologize for any inconvenience this may cause.

The other changes will be announced over the next week leading up to the maintenance period.

For more details about the 5th Anniversary Event, please check Here to know well.