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 - 119: Supported
- 120: Supported
- 121 - 123: Supported
Edge
- 12 - 18: Supported
- 79 - 119: Supported
- 120: Supported
Safari
- 3.1 - 8: Not supported
- 9 - 10.1: Partial support
- 11 - 17.0: Supported
- 17.1: Supported
- 17.2 - TP: Supported
Firefox
- 2 - 35: Not supported
- 36 - 52: Supported
- 53 - 119: Supported
- 120: Supported
- 121 - 123: Supported
Opera
- 9 - 27: Not supported
- 28 - 37: Supported
- 38 - 103: Supported
- 104: Supported
IE
- 5.5 - 10: Not supported
- 11: Partial support
Chrome for Android
- 119: Supported
Safari on iOS
- 3.2 - 8.4: Not supported
- 9 - 17.0: Supported
- 17.1: Supported
- 17.2: Supported
Samsung Internet
- 4: Supported
- 5 - 22: Supported
- 23: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 73: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 119: Supported
Firefox for Android
- 119: Supported
QQ Browser
- 13.1: Supported
Baidu Browser
- 13.18: 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.