Go 1.6 把 HTTP/2 變成預設支援的功能

在 Go 的官方公告「Go 1.6 is released」提到了把 net/http 的 HTTP/2 預設啟用了：

In Go 1.6, support for HTTP/2 is enabled by default for both servers and clients when using HTTPS, bringing the benefits of the new protocol to a wide range of Go projects, such as the popular Caddy web server.

另外值得一提的是 sort 演算法的效能改善：

The algorithm inside sort.Sort was improved to run about 10% faster, but the change may break programs that expect a specific ordering of equal but distinguishable elements.

這應該算還蠻基本常用到的東西，會改善很多程式效能...