$ go version
go version go1.13 linux/amd64
$date
Tue Sep 10 22:22:16 CST 2019
$ shasum *.tar.gz
abd95129c78bc1af7616229acc3cdcaebd0b27de build/kcptun-darwin-amd64-20190910.tar.gz
f9e9e2d14a4a279928aa0c8adf90532aad7f6e49 build/kcptun-freebsd-amd64-20190910.tar.gz
d5e720fe0350835eb90f344ec4eedb7a21bd09b7 build/kcptun-linux-386-20190910.tar.gz
243b700560fdda0ea50f1b336ff3d1e7dedd1c0b build/kcptun-linux-amd64-20190910.tar.gz
2ef93d4d14f6fa6d3cf6052b109f394336a39394 build/kcptun-linux-arm5-20190910.tar.gz
0f54526a0381f80c7bb60e51d679a2355c479c79 build/kcptun-linux-arm6-20190910.tar.gz
516719fc4a5fa018a3628777ac123c396f082f58 build/kcptun-linux-arm64-20190910.tar.gz
c55e64bd4293491dcc47920d2fb6e1f36a14a4c3 build/kcptun-linux-arm7-20190910.tar.gz
d973fc5d9ee96428709a31b1816db16a297f2877 build/kcptun-linux-mips-20190910.tar.gz
adb425ea7c2ddff625cc7b42559a8e97e36eaa30 build/kcptun-linux-mipsle-20190910.tar.gz
9f27b2d03e6be5b9c8b45a2c08335032cea88768 build/kcptun-windows-386-20190910.tar.gz
eb95ac0ee50e39f694a3436198ca2d7aa00231ad build/kcptun-windows-amd64-20190910.tar.gz