win: properly initialize OSVERSIONINFOW (#5107)

win: fix watch loop logic (#5013)

misc: revise security vulnerability reporting instructions

test: use correct type for uv_fileno arguments (#4673)

unix: use posix_spawn instead of fork (#3520)

win: use WSA_FLAG_NO_HANDLE_INHERIT in all WSASocketW (#5097)

win,pipe: skip IOCP for pipe handles (#5071)

io: make libuv 64-bit safe (#5076)

android: fix termux build (#5093)

unix: enforce recvmmsg buffer size requirements (#5095)

linux: close streams without an extra read (#3250)

test: fix -Wunused-function warning (#5090)

unix: check return value of fcntl call (#5089)

process: better validation for process->pid usage (#3539)

doc: remove random reference to libev (#5075)