HTTP/2 protocol
- OTHERNetworking protocol for low-latency transport of content over the web. Originally started out from the SPDY protocol, now standardized as HTTP version 2.
Chrome
- 4 - 40: Not supported
- 41 - 50: Supported
- 51 - 123: Supported
- 124: Supported
- 125 - 127: Supported
Edge
- 12 - 18: Supported
- 79 - 122: Supported
- 123: Supported
Safari
- 3.1 - 8: Not supported
- 9 - 10.1: Partial support
- 11 - 17.3: Supported
- 17.4: Supported
- 17.5 - TP: Supported
Firefox
- 2 - 35: Not supported
- 36 - 52: Supported
- 53 - 124: Supported
- 125: Supported
- 126 - 128: Supported
Opera
- 9 - 27: Not supported
- 28 - 37: Supported
- 38 - 108: Supported
- 109: Supported
IE
- 5.5 - 10: Not supported
- 11: Partial support
Chrome for Android
- 123: Supported
Safari on iOS
- 3.2 - 8.4: Not supported
- 9 - 17.3: Supported
- 17.4: Supported
- 17.5: Supported
Samsung Internet
- 4: Supported
- 5 - 23: Supported
- 24: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 80: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 123: Supported
Firefox for Android
- 124: Supported
QQ Browser
- 14.9: Supported
Baidu Browser
- 13.52: Supported
KaiOS Browser
- 2.5: Supported
- 3: Supported
HTTP/2 is only supported over TLS (HTTPS). See also the precursor of HTTP/2, the SPDY protocol, which has been deprecated and removed from most browsers, in favor of HTTP/2.