2017.12.02, Version 1.18.0 (Stable) Changes since version 1.17.0: * aix: fix -Wmaybe-uninitialized warning (cjihrig) * doc: remove note about SIGWINCH on Windows (Bartosz Sosnowski) * Revert "unix,win: wait for threads to start" (Ben Noordhuis) * unix,win: add uv_os_getpid() (Bartosz Sosnowski) * unix: remove incorrect assertion in uv_shutdown() (Jameson Nash) * doc: fix IRC URL in CONTRIBUTING.md (Matt Harrison)