v0.12.0

Added

• std.Io: batch operations now support concurrent execution and timeouts (#387, #388)

Fixed

• Fixed possible deadlock in RwLock.unlockShared (#395)
• Fixed sockets not opened in non-blocking mode on the epoll backend (#392)
• Fixed integer overflow when using .executors = .auto on machines with 64+ CPUs (#390)
• Fixed coroutine stack allocation size doubling on POSIX (#386)