I discovered a memory leak in Async.StartChild and here discuss a workaround based on a Future abstraction. I noticed what appears to be a memory leak in F# standard library function Async.StartChild. This happened in a context of a socket server, where I attempted to perform socket reading and writing in parallel. It seems that memory use slowly grows and memory profiler points to some CancellationTokenSource-related objects not being released. As a non-leaking alternative, I used my own abstraction[...]