v4.0.0

[arnetheduck]

Features:

• Exception effects / raises for async procedures helping you write more efficient leak-free code
• Cross-thread notification mechanism for suitable building channels, queues and other multithreaded primitives
• Async process I/O
• IPv6 dual stack support
• HTTP middleware support alloing multiple services to share a single http server
• A new documentation web site covering the basics, with several simple examples for getting started
• Implicit returns, support for results.? and other conveniences
• Rate limiter
• Revamped cancellation support with more control over the cancellation process
• Efficiency improvements with lent and sink

See the porting guides for porting code from earlier chronos releases (as well as asyncdispatch)

[mratsim]

Cross-thread notification mechanism for suitable building channels, queues and other multithreaded primitives

on top of a threadpool. (i.e. Chronos is threadpool-agnostic)