Google Chrome

Google's Chrome browser will see a rollout of support for HTTP/2 in the coming weeks. HTTP/2 is designed to be the next generation version of the networking protocol for the World Wide Web, replacing the current HTTP 1.1. At the same time, support for a competing protocol, SPDY, will be ending in Chrome. The end result should allow for faster web browsing in the future.

Google was the primary developer behind SPDY, but in a blog post today, the company announced why they decided to ditch their home-grown protocol in favor of HTTP/2:

HTTP/2's primary changes from HTTP/1.1 focus on improved performance. Some key features such as multiplexing, header compression, prioritization and protocol negotiation evolved from work done in an earlier open, but non-standard protocol named SPDY. Chrome has supported SPDY since Chrome 6, but since most of the benefits are present in HTTP/2, it's time to say goodbye. We plan to remove support for SPDY in early 2016, and to also remove support for the TLS extension named NPN in favor of ALPN in Chrome at the same time. Server developers are strongly encouraged to move to HTTP/2 and ALPN.

Source: Chromium blog