▁publishing ▁and ▁distribution ▁was ▁transferred ▁from ▁Castle ▁to ▁Gene S ys ▁Develop ments ▁Ltd , ▁previously ▁known ▁as ▁O reg ano ▁UK ▁Ltd . ▁ ▁O reg an ' s ▁technology ▁architecture ▁features ▁an ▁abstra ction ▁layer , ▁which ▁enables ▁its ▁software ▁to ▁be ▁port ed ▁across ▁various ▁hardware ▁and ▁Oper ating ▁System ▁platforms . ▁ ▁An ▁abstra ction ▁layer ▁implementation ▁has ▁been ▁created ▁for ▁the ▁R IS C ▁OS ▁environment , ▁which ▁enables ▁the ▁O reg an ▁software ▁to ▁run ▁on ▁R IS C ▁OS ▁based ▁desktop ▁machines . ▁ ▁O reg ano ▁ 2 , ▁the ▁last ▁released ▁version , ▁supports ▁HTML ▁ 4 . 0 1 ▁( partial ly ), ▁CSS - 1 , ▁DOM - 0 , ▁JavaScript ▁ 1 . 5 ▁and ▁Flash ▁ 4 . 0 ▁content . ▁ ▁Gene S ys ▁Develop ments ▁Ltd ▁did ▁secure ▁lic ens ing ▁rights ▁for ▁the ▁latest ▁version ▁of ▁O reg an ' s ▁browser ▁technology , ▁and ▁a ▁R IS C ▁OS ▁version ▁called ▁O reg ano ▁ 3 ▁was ▁planned , ▁offering ▁complete ▁HTML ▁ 4 . 0 1 ▁support , ▁X HTML ▁ 1 . 0 , ▁CSS - 2 , ▁DOM - 2 , ▁JavaScript ▁ 1 . 5 , ▁and ▁Flash ▁ 6 . 0 ▁compatibility . ▁However , ▁in ▁April ▁ 2 0 0 7 ▁Gene S ys ▁cancel led ▁the ▁project . ▁ ▁References ▁▁ ▁Category : R IS C ▁OS ▁software ▁Category : Dis cont in ued ▁web ▁browsers <0x0A> </s> ▁Ph