In !13 (merged) , we update threejs to r118 and the Orbit Controls give us the following deprecation notice:

THREE.OrbitControls: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/index.html#manual/en/introduction/Import-via-modules.

If we want to keep up to date with threejs versions, we should update our library and start using ES6 modules.