We primarily focus on supporting XLTS for AngularJS, which is based on the last major version of AngularJS (v1.8.3). You can find the latest version of XLTS for AngularJS here.
We are also offering XLTS for AngularJS 1.5.x. This is based on the End-of-Life 1.5.x branch from AngularJS and includes security fixes which we have back-ported from more recent versions of AngularJS. XLTS for AngularJS 1.5.x, which supports Ionic 1.x, requires an additional cost beyond XLTS for AngularJS.