▁introduced ▁for ▁use ▁within ▁C DE . ▁The ▁root ▁file ▁system ▁could ▁be ▁configured ▁to ▁use ▁the ▁Ver itas ▁File ▁System ▁( V x FS ). ▁For ▁legacy ▁as ▁well ▁as ▁technical ▁reasons , ▁the ▁file ▁system ▁used ▁for ▁the ▁boot ▁kernel ▁remained ▁Hi ▁Performance ▁File System ▁( H FS , ▁a ▁variant ▁of ▁U FS ) ▁until ▁version ▁ 1 1 . 2 3 . ▁ 1 0 . 2 0 ▁also ▁supported ▁ 3 2 - bit ▁user ▁and ▁group ▁ident ifiers . ▁The ▁prior ▁limit ▁was ▁ 6 0 , 0 0 0 , ▁or ▁ 1 6 - bit . ▁This ▁and ▁earlier ▁releases ▁of ▁H P - U X ▁are ▁now ▁effectively ▁ob sole te , ▁and ▁support ▁by ▁H P ▁ended ▁on ▁June ▁ 3 0 , ▁ 2 0 0 3 . ▁ 1 0 . 2 4 ▁This ▁is ▁a ▁Virtual ▁V ault ▁release ▁of ▁H P - U X , ▁providing ▁en hanced ▁security ▁features . ▁ ▁Virtual ▁V ault ▁is ▁a ▁compart ment al ised ▁operating ▁system ▁in ▁which ▁each ▁file ▁is ▁assigned ▁a ▁compart ment ▁and ▁processes ▁only ▁have ▁access ▁to ▁files ▁in ▁the ▁appropriate ▁compart ment ▁and ▁unlike ▁most ▁other ▁UN IX ▁systems ▁the ▁super user ▁( or ▁root ) ▁does ▁not ▁have ▁complete ▁access ▁to ▁the ▁system ▁without ▁following ▁correct ▁procedures . ▁ 1 0 . 3 0 ▁( 1 9 9 7 ) ▁This ▁was ▁primarily ▁a ▁developer ▁release ▁with ▁various ▁increment al ▁enh anc ements . ▁It ▁provided