v3.4.4

nix 0.27 -> 0.28
MSRV 1.63.0 -> 1.69.0

v3.4.2

• windows-sys 0.52

v3.4.1

• Support for QNX Neutrino
• Nix 0.27

v3.4.0

• Use double checked locking to prevent race condition in set_handler
• Move the implementation for #98 to ctrlc::try_set_handler and keep overwriting existing handlers in ctrlc::set_handler

v3.3.1

• Registering a handler over an existing handler on unix systems is now an error

v3.2.5

• Haiku support
• Migration from winapi to windows-sys.

3.2.0

Feature termination will now handle SIGINT, SIGTERM and SIGHUP when previously it only handled SIGINT and SIGTERM.