We have an old chilkat license from 2013, with a seperat key for every part of the library. But no new "bundle"-key.
Is it allowed and possible to use the async-functions in licensed parts like CkHttp or CkSocket?
The functions themself are part of licensed classes, but the return value is CkTask, which is part of the "bundle"-license. Obviously some of the CkTask functions are needed, if the async-functions are allowed to used.
Yes, you may use the Async methods on those objects. Your unlock codes for the individual products are valid for it. Technically, the license needed for the CkTask object, when the Run method is called, depends on whatever underlying object method is being run...