HTTP/3 protocol

Upcoming version of the HTTP networking protocol, which is currently a draft. Previously known as HTTP-over-QUIC. Uses QUIC as its transport layer protocol.

Spec	https://tools.ietf.org/html/draft-ietf-quic-http-29
Status	Other

IE	Edge	Firefox	Chrome	Safari	Opera
			103
		100	102
		99	101	TP ⁽⁴⁾
11	99	98	100	15.4 ⁽⁴⁾	83
10	98	97	99	15.2-15.3 ⁽⁴⁾	82
9	97	96	98	15.1 ⁽⁴⁾	81
8	96	95	97	15 ⁽⁴⁾	80
Show all
7	95	94	96	14.1 ⁽⁴⁾	79
6	94	93	95	14 ⁽⁴⁾	78
5.5	93	92	94	13.1	77
	92	91	93	13	76
	91	90	92	12.1	75
	90	89	91	12	74
	89	88	90	11.1	73 ⁽³⁾
	88	87 ⁽¹⁾	89	11	72
	87	86 ⁽¹⁾	88	10.1	71
	86 ⁽³⁾	85 ⁽¹⁾	87	10	70
	85 ⁽³⁾	84 ⁽¹⁾	86 ⁽³⁾	9.1	69
	84 ⁽²⁾	83 ⁽¹⁾	85 ⁽³⁾	9	68
	83 ⁽²⁾	82 ⁽¹⁾	84 ⁽²⁾	8	67
	81 ⁽²⁾	81 ⁽¹⁾	83 ⁽²⁾	7.1	66
	80 ⁽²⁾	80 ⁽¹⁾	81 ⁽²⁾	7	65
	79 ⁽²⁾	79 ⁽¹⁾	80 ⁽²⁾	6.1	64
	18	78 ⁽¹⁾	79 ⁽²⁾	6	63
	17	77 ⁽¹⁾	78	5.1	62
	16	76 ⁽¹⁾	77	5	60
	15	75 ⁽¹⁾	76	4	58
	14	74 ⁽¹⁾	75	3.2	57
	13	73 ⁽¹⁾	74	3.1	56
	12	72 ⁽¹⁾	73		55
		71	72		54
		70	71		53
		69	70		52
		68	69		51
		67	68		50
		66	67		49
		65	66		48
		64	65		47
		63	64		46
		62	63		45
		61	62		44
		60	61		43
		59	60		42
		58	59		41
		57	58		40
		56	57		39
		55	56		38
		54	55		37
		53	54		36
		52	53		35
		51	52		34
		50	51		33
		49	50		32
		48	49		31
		47	48		30
		46	47		29
		45	46		28
		44	45		27
		43	44		26
		42	43		25
		41	42		24
		40	41		23
		39	40		22
		38	39		21
		37	38		20
		36	37		19
		35	36		18
		34	35		17
		33	34		16
		32	33		15
		31	32		12.1
		30	31		12
		29	30		11.6
		28	29		11.5
		27	28		11.1
		26	27		11
		25	26		10.6
		24	25		10.5
		23	24		10.0-10.1
		22	23		9.5-9.6
		21	22		9
		20	21
		19	20
		18	19
		17	18
		16	17
		15	16
		14	15
		13	14
		12	13
		11	12
		10	11
		9	10
		8	9
		7	8
		6	7
		5	6
		4	5
		3.6	4
		3.5
		3
		2

Safari on iOS	Opera Mini	Android Browser	Blackberry Browser	Opera Mobile	Android Chrome	Android Firefox	IE Mobile	Android UC Browser	Samsung Internet	QQ Browser	Baidu Browser	KaiOS Browser
15.4	all	99	10	64	100	98 ⁽¹⁾	11	12.12	16.0	10.4	7.12	2.5
15.2-15.3		4.4.3-4.4.4	7	12.1			10		15.0
15.0-15.1		4.4		12					14.0
14.5-14.8		4.2-4.3		11.5					13.0
Show all
14.0-14.4		4.1		11.1					12.0
13.4-13.7		4		11					11.1-11.2
13.3		3		10					10.1
13.2		2.3							9.2
13.0-13.1		2.2							8.2
12.2-12.5		2.1							7.2-7.4
12.0-12.1									6.2-6.4
11.3-11.4									5.0-5.4
11.0-11.2									4
10.3
10.0-10.2
9.3
9.0-9.2
8.1-8.4
8
7.0-7.1
6.0-6.1
5.0-5.1
4.2-4.3
4.0-4.1
3.2

Notes

Can be enabled in Firefox via the network.http.http3.enabled pref in about:config.
Can be enabled in Chrome(Chromium) via the --enable-quic & --quic-version=h3-23 command line arguments.
Can be enabled in Chrome(Chromium) via the --enable-quic & --quic-version=h3-29 command line arguments.
Can be enabled in Safari on macOS 11 Big Sur and later in the "Experimental Features" developer menu.

Resources

Wikipedia article about HTTP/3

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
https://caniuse.com/http3

Name	Support Tables
Version
Badge
Last Updated	2022-04-11T17:49:08Z