0 4 ▁until ▁ 2 0 0 9 ▁Sax on ▁was ▁available ▁into ▁two ▁separate ▁forms : ▁Sax on - B ▁and ▁Sax on - SA . ▁Both ▁of ▁these ▁were ▁built ▁on ▁similar ▁code b ases . ▁Sax on - B ▁was ▁open - source ▁software ▁released ▁under ▁the ▁Moz illa ▁Public ▁License , ▁while ▁Sax on - SA ▁was ▁a ▁closed - source ▁commercial ▁product . ▁ ▁The ▁difference ▁between ▁Sax on - B ▁and ▁Sax on - SA ▁was ▁that ▁B ▁was ▁" basic " ▁while ▁SA ▁was ▁" schema - aware ". ▁These ▁terms ▁are ▁references ▁to ▁terms ▁in ▁the ▁X S LT ▁ 2 . 0 ▁and ▁X Query ▁ 1 . 0 ▁specification . ▁A ▁processor ▁that ▁is ▁" schema - aware " ▁is ▁able ▁to ▁use ▁a ▁W 3 C ▁XML ▁Sch ema ▁to ▁define ▁the ▁data ▁types ▁of ▁the ▁various ▁elements ▁in ▁the ▁source ▁XML ▁document ( s ). ▁These ▁data ▁types ▁can ▁then ▁be ▁used ▁in ▁X Path ▁ 2 . 0 ▁and ▁X S LT ▁ 2 . 0 ▁commands . ▁A ▁" basic " ▁X S LT ▁ 2 . 0 ▁processor ▁is ▁unable ▁to ▁use ▁data ▁typing ▁information . ▁ ▁With ▁the ▁release ▁of ▁version ▁ 9 . 2 ▁in ▁August ▁ 2 0 0 9 , ▁the ▁pack aging ▁changed ▁to ▁create ▁three ▁versions : ▁home ▁edition ▁( HE ), ▁professional ▁edition ▁( PE ), ▁and ▁enter prise ▁edition ▁( EE ). ▁The ▁home ▁edition ▁is ▁open ▁source ▁and ▁free