It is so big update that it has 5 parts
http://uwo.ogplanet.com/en/guide/2ndAgePart1.og
http://uwo.ogplanet.com/en/guide/2ndAgePart2.og
http://uwo.ogplanet.com/en/guide/2ndAgePart3.og
http://uwo.ogplanet.com/en/guide/2ndAgePart4.og
http://uwo.ogplanet.com/en/guide/2ndAgePart5.og