. ▁ ▁License ▁syntax ▁ ▁Each ▁license ▁is ▁identified ▁by ▁a ▁full ▁name , ▁such ▁as ▁" M oz illa ▁Public ▁License ▁ 2 . 0 " ▁and ▁a ▁short ▁identifier , ▁here ▁" MP L - 2 . 0 ". ▁Lic enses ▁can ▁be ▁combined ▁by ▁operators ▁AND ▁and ▁OR , ▁and ▁grouping ▁( , ▁). ▁ ▁For ▁example , ▁( Ap ache - 2 . 0 ▁OR ▁M IT ) ▁means ▁that ▁you ▁can ▁choose ▁between ▁Apache - 2 . 0 ▁( Ap ache ▁License ) ▁or ▁M IT ▁( MIT ▁license ). ▁ ▁On ▁the ▁other ▁hand , ▁( Ap ache - 2 . 0 ▁AND ▁M IT ) ▁means ▁that ▁both ▁lic enses ▁apply . ▁ ▁There ▁is ▁also ▁a ▁" +" ▁operator , ▁when ▁applied ▁to ▁a ▁license , ▁means ▁that ▁future ▁versions ▁of ▁the ▁license ▁apply . ▁For ▁example , ▁Apache - 1 . 1 + ▁means ▁that ▁Apache - 1 . 1 ▁and ▁Apache - 2 . 0 ▁may ▁apply ▁( and ▁future ▁versions ▁if ▁any ). ▁ ▁The ▁GNU ▁family ▁of ▁lic enses ▁( e . g ., ▁GNU ▁General ▁Public ▁License ▁ 2 . 0 ) ▁have ▁the ▁choice ▁of ▁choosing ▁a ▁later ▁version ▁of ▁the ▁license ▁built ▁in . ▁Sometimes , ▁it ▁was ▁not ▁clear , ▁whether ▁the ▁SP D X ▁expression ▁G PL - 2 . 0 ▁meant ▁" ex actly ▁G PL ▁version ▁ 2 . 0 " ▁or ▁" G PL ▁version ▁ 2 . 0 ▁or ▁any ▁later ▁version