HTTP/2 protocol

- OTHER

Networking protocol for low-latency transport of content over the web. Originally started out from the SPDY protocol, now standardized as HTTP version 2.

IE

  1. 5.5 - 10: Not supported
  2. 11: Partial support

Edge

  1. 12 - 18: Supported
  2. 79: Supported
  3. 80: Supported

Firefox

  1. 2 - 35: Not supported
  2. 36 - 52: Supported
  3. 53 - 72: Supported
  4. 73: Supported
  5. 74 - 75: Supported

Chrome

  1. 4 - 40: Not supported
  2. 41 - 50: Supported
  3. 51 - 79: Supported
  4. 80: Supported
  5. 81 - 83: Supported

Safari

  1. 3.1 - 8: Not supported
  2. 9 - 10.1: Partial support
  3. 11 - 12.1: Supported
  4. 13: Supported
  5. TP: Supported

Opera

  1. 9 - 27: Not supported
  2. 28 - 37: Supported
  3. 38 - 65: Supported
  4. 66: Supported

iOS Safari

  1. 3.2 - 8.4: Not supported
  2. 9 - 13.1: Supported
  3. 13.2: Supported
  4. 13.3: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 80: Supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 46: Supported

Chrome for Android

  1. 80: Supported

Firefox for Android

  1. 68: Supported

IE Mobile

  1. 10: Not supported
  2. 11: Not supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4: Supported
  2. 5 - 9.2: Supported
  3. 10.1: Supported

QQ Browser

  1. 1.2: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: 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.

Resources:
Wikipedia article about HTTP/2
Browser support test