What version of Javascript API is supported in WAB2.1?

[spencermartin]

Right now we are using WAB2.0 and found that the JavaScript API that WAB2.0 uses is 3.16. Does the latest WAB2.1 support JavaScript API 3.17 or 4.0?

Thanks!

[RobertScheitlin__GISP · Accepted solution]

WAB Version 2.1 uses 3.17 API for 2D apps and JS API Version 4.0 for 3D apps.

[RebeccaStrauch__GISP]

Although Robert already answered the question, for future reference and versions.....

Requirements and browser support—Web AppBuilder for ArcGIS (Developer Edition) | ArcGIS for Develope...

includes info on compatible browsers, JS API, and more.