Update release notes
Update release notes

bdeluca/oiio,micler/oiio,lgritz/oiio,OpenImageIO/oiio,mcanthony/oiio,micler/oiio,sambler/oiio,jeremyselan/oiio,YangYangTL/oiio,cwilling/oiio,mcanthony/oiio,cwilling/oiio,cwilling/oiio,sambler/oiio,micler/oiio,lgritz/oiio,bdeluca/oiio,OpenImageIO/oiio,scott-wilson/oiio,OpenImageIO/oiio,scott-wilson/oiio,micler/oiio,YangYangTL/oiio,lgritz/oiio,sambler/oiio,YangYangTL/oiio,jeremyselan/oiio,bdeluca/oiio,cwilling/oiio,mcanthony/oiio,YangYangTL/oiio,scott-wilson/oiio,OpenImageIO/oiio,lgritz/oiio,jeremyselan/oiio,sambler/oiio,scott-wilson/oiio,bdeluca/oiio,mcanthony/oiio