New Features

• Add support for Python 3.8.
  (by @1st1 in 5f48dab, 51636f7)

Bug Fixes

• Multiple fixes in the SSL/TLS layer.
  (by @fantix in 82104fb for #263, 7fcbfed for #255)

• Restore signal.wakeup_fd after the event loop is closed.
  (by @vladima in 48d376d)

• Handle large timeouts in loop.call_later().
  (by @1st1 in 1a0d657 for #259)

• Fix possible feezing of uvloop on os.fork.
  (by @grungy-ado in fde5d14)

• Better handle Unix sockets for datagram transports.
  (by @mosquito and @1st1 in dd4cb7a for #269)

• Avoid double connecting to remote_addr for datagram transports.
  (by @1st1 in bed926c for #276)

Build

• Bump Cython to 0.29.13.
  (by @1st1 in 65c1a04)

• Bump libuv to v1.33.1.
  (by @1st1 in 34fd827)