'''HTTP/2''' (awalnya dinamai dengan '''HTTP/2.0''') merupakan revisi besar dari protokol jaringan [[HTTP]] yang digunakan oleh [[World Wide Web]]. HTTP/2 berasal dari protokol [[SPDY]] eksperimental sebelumnya, yang awalnya dikembangkan oleh [[Google]].<ref>{{cite web|url=https://arstechnica.com/information-technology/2015/02/http2-finished-coming-to-browsers-within-weeks/|title=HTTP/2 finished, coming to browsers within weeks|author=Bright, Peter|date=February 18, 2015|website=Ars Technica}}</ref><ref name=":1">{{Cite news|last=Cimpanu|first=Catalin|title=HTTP-over-QUIC to be renamed HTTP/3 {{!}} ZDNet|language=en|work=ZDNet|url=https://www.zdnet.com/article/http-over-quic-to-be-renamed-http3/|access-date=2018-11-19}}</ref> HTTP/2 wasdikembangkan developedoleh byKelompok theKerja HTTP Working Group (alsojuga calleddisebut httpbis, wheredengan "{{linktext|bis}}" meansyang berarti "twicedua kali") of thedari ''[[Internet Engineering Task Force]]'' (IETF).<ref name=HTTPbis-draft>{{cite news|last1=Thomson|first1=M. (ed.), Belshe M. and R. Peon|title=Hypertext Transfer Protocol version 2: draft-ietf-httpbis-http2-16|url=https://tools.ietf.org/html/draft-ietf-httpbis-http2-16|newspaper=Ietf Datatracker|publisher=HTTPbis Working Group|access-date=February 11, 2015}}</ref><ref name="charter"/><ref>{{Cite web|url=https://httpwg.org/|title=IETF HTTP Working Group|website=IETF HTTP Working Group|language=en|access-date=2019-12-15}}</ref> HTTP/2 adalah versi baru HTTP pertama semenjak HTTP/1.1, yang dibakukan dalam {{IETF RFC|2068}} pada tahun 1997. Kelompok Kerja mempresentasikan HTTP/2 kepada [[Kelompok Pengarah Teknik Internet]] (IESG) untuk dipertimbangkan sebagai Usulan Standar pada bulan Desember 2014,<ref name="http2hist">{{cite web|title=History for draft-ietf-httpbis-http2-16|url=https://datatracker.ietf.org/doc/draft-ietf-httpbis-http2/history/#history-404477|access-date=January 3, 2015|publisher=IETF|quote="2014-12-16 IESG state changed to Publication Requested"}}</ref><ref name="ms1">{{cite web|url=https://msopentech.com/blog/2014/08/06/wait-for-it-http2-begins-working-group-last-call/|archive-url=https://web.archive.org/web/20141006091749/https://msopentech.com/blog/2014/08/06/wait-for-it-http2-begins-working-group-last-call/|title=Wait for it – HTTP/2 begins Working Group Last Call!|last=Raymor|first=Brian|date=August 6, 2014|publisher=Microsoft Open Technologies|archive-date=October 6, 2014|access-date=2018-10-17}}</ref> dan IESG menyetujuinya untuk diterbitkan sebagai Standar yang Diusulkan pada 17 Februari 2015 (dan diperbarui pada Februari 2020 sehubungan dengan [[TLS 1.3]]).<ref name="approval">{{cite mailing list|url=https://lists.w3.org/Archives/Public/ietf-http-wg/2015JanMar/0478.html|title=Protocol Action: 'Hypertext Transfer Protocol version 2' to Proposed Standard (draft-ietf-httpbis-http2-17.txt)|date=February 17, 2015|author=The IESG|access-date=February 18, 2015|mailing-list=httpbis}}</ref><ref name="approval2">{{cite web|url=https://www.ietf.org/blog/2015/02/http2-approved/|title=HTTP/2 Approved|author=Mark Nottingham|publisher=[[Internet Engineering Task Force]]|website=ietf.org|date=February 18, 2015|access-date=March 8, 2015}}</ref> Spesifikasi HTTP/2 diterbitkan sebagai {{IETF RFC|7540}} pada tanggal 14 Mei 2015.<ref name="rfc7540">{{cite journal|url=https://tools.ietf.org/html/rfc7540|title=RFC 7540 - Hypertext Transfer Protocol Version 2 (HTTP/2)|publisher=IETF|date=May 2015|doi=10.17487/RFC7540 |access-date=May 14, 2015|last1=Belshe |first1=M. |last2=Peon |first2=R. |last3=Thomson |first3=M. |editor-first1=M |editor-last1=Thomson |doi-access=free }}</ref>
