HTTP/3 protocol

Third version of the HTTP networking protocol which uses QUIC as transport protocol. Previously known as HTTP-over-QUIC, now standardized as HTTP/3.

Spec	https://datatracker.ietf.org/doc/rfc9114/
Status	Other

IE	Edge	Firefox	Chrome	Safari	Opera
			108
		107	107	TP (4)
		106	106	16.1 (4)
11	105	105	105	16.0 (4)	91
10	104	104	104	15.6 (4)	90
9	103	103	103	15.5 (4)	89
8	102	102	102	15.4 (4)	88
Show all
7	101	101	101	15.2-15.3 (4)	87
6	100	100	100	15.1 (4)	86
5.5	99	99	99	15 (4)	85
	98	98	98	14.1 (4)	84
	97	97	97	14 (4)	83
	96	96	96	13.1	82
	95	95	95	13	81
	94	94	94	12.1	80
	93	93	93	12	79
	92	92	92	11.1	78
	91	91	91	11	77
	90	90	90	10.1	76
	89	89	89	10	75
	88	88	88	9.1	74
	87	87 (1)	87	9	73 (3)
	86 (3)	86 (1)	86 (3)	8	72
	85 (3)	85 (1)	85 (3)	7.1	71
	84 (2)	84 (1)	84 (2)	7	70
	83 (2)	83 (1)	83 (2)	6.1	69
	81 (2)	82 (1)	81 (2)	6	68
	80 (2)	81 (1)	80 (2)	5.1	67
	79 (2)	80 (1)	79 (2)	5	66
	18	79 (1)	78	4	65
	17	78 (1)	77	3.2	64
	16	77 (1)	76	3.1	63
	15	76 (1)	75		62
	14	75 (1)	74		60
	13	74 (1)	73		58
	12	73 (1)	72		57
		72 (1)	71		56
		71	70		55
		70	69		54
		69	68		53
		68	67		52
		67	66		51
		66	65		50
		65	64		49
		64	63		48
		63	62		47
		62	61		46
		61	60		45
		60	59		44
		59	58		43
		58	57		42
		57	56		41
		56	55		40
		55	54		39
		54	53		38
		53	52		37
		52	51		36
		51	50		35
		50	49		34
		49	48		33
		48	47		32
		47	46		31
		46	45		30
		45	44		29
		44	43		28
		43	42		27
		42	41		26
		41	40		25
		40	39		24
		39	38		23
		38	37		22
		37	36		21
		36	35		20
		35	34		19
		34	33		18
		33	32		17
		32	31		16
		31	30		15
		30	29		12.1
		29	28		12
		28	27		11.6
		27	26		11.5
		26	25		11.1
		25	24		11
		24	23		10.6
		23	22		10.5
		22	21		10.0-10.1
		21	20		9.5-9.6
		20	19		9
		19	18
		18	17
		17	16
		16	15
		15	14
		14	13
		13	12
		12	11
		11	10
		10	9
		9	8
		8	7
		7	6
		6	5
		5	4
		4
		3.6
		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
16.1
16.0	all	105	10	64	105	104	11	13.4	18.0	13.1	13.18	2.5
15.6		4.4.3-4.4.4	7	12.1			10		17.0
15.5		4.4		12					16.0
15.4		4.2-4.3		11.5					15.0
Show all
15.2-15.3		4.1		11.1					14.0
15.0-15.1		4		11					13.0
14.5-14.8		3		10					12.0
14.0-14.4		2.3							11.1-11.2
13.4-13.7		2.2							10.1
13.3		2.1							9.2
13.2									8.2
13.0-13.1									7.2-7.4
12.2-12.5									6.2-6.4
12.0-12.1									5.0-5.4
11.3-11.4									4
11.0-11.2
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

1. Can be enabled in Firefox via the network.http.http3.enabled pref in about:config.

2. Can be enabled in Chrome(Chromium) via the --enable-quic & --quic-version=h3-23 command line arguments.

3. Can be enabled in Chrome(Chromium) via the --enable-quic & --quic-version=h3-29 command line arguments.

4. Can be enabled in Safari on macOS 11 Big Sur and later in the "Experimental Features" developer menu.

Resources

• Wikipedia article about HTTP/3