From nobody Fri Sep 25 12:58:37 2020 Return-Path: X-Original-To: quic@ietfa.amsl.com Delivered-To: quic@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 71FB03A0869; Fri, 25 Sep 2020 12:58:32 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.796 X-Spam-Level: X-Spam-Status: No, score=-3.796 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.695, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=apple.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id M4PwAjQOHn9P; Fri, 25 Sep 2020 12:58:30 -0700 (PDT) Received: from ma1-aaemail-dr-lapp03.apple.com (ma1-aaemail-dr-lapp03.apple.com [17.171.2.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 99FB03A0853; Fri, 25 Sep 2020 12:58:30 -0700 (PDT) Received: from pps.filterd (ma1-aaemail-dr-lapp03.apple.com [127.0.0.1]) by ma1-aaemail-dr-lapp03.apple.com (8.16.0.42/8.16.0.42) with SMTP id 08PJvYQu035050; Fri, 25 Sep 2020 12:58:29 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=apple.com; h=from : content-type : mime-version : subject : message-id : date : to; s=20180706; bh=J+k5qc+SPtdoHleSbPXDIZpovnsCQ81+G24gPwS+sKo=; b=pzhZCz/Q5UyJMFm0n7NIrKdyNlB/DVkSvG7lbGnKifny3dNn4hq8/lL7ma1AnckVXGJw uyWt16Ryfcl6eS0YuOPGwXFfsZh0jperDK87YhD6cvKoaIWGIXxy/oEbdMDK/bl2qJPj pDok1yVeeNyAbUG9a4FAL/MtFGQbuprSv8XN9rEenUGixoh0qrDyunUroMvU6224c2Hs gTznfOVVQvL3p5gliy/xnSOK1O9CRdahPf8N9LDE2kcL6YWnZcBLg6qNEoE5X4AsPxBj W1Q0n/hx0HuFsWTvIuD8KEzKcTrbKn0rPDjp57A4wGLraDglGnkbQ19NCsdst+pr7aE5 DQ== Received: from rn-mailsvcp-mta-lapp01.rno.apple.com (rn-mailsvcp-mta-lapp01.rno.apple.com [10.225.203.149]) by ma1-aaemail-dr-lapp03.apple.com with ESMTP id 33ngywagy7-6 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Fri, 25 Sep 2020 12:58:29 -0700 Received: from rn-mailsvcp-mmp-lapp01.rno.apple.com (rn-mailsvcp-mmp-lapp01.rno.apple.com [17.179.253.14]) by rn-mailsvcp-mta-lapp01.rno.apple.com (Oracle Communications Messaging Server 8.1.0.6.20200729 64bit (built Jul 29 2020)) with ESMTPS id <0QH800R05CTEQYC0@rn-mailsvcp-mta-lapp01.rno.apple.com>; Fri, 25 Sep 2020 12:58:28 -0700 (PDT) Received: from process_milters-daemon.rn-mailsvcp-mmp-lapp01.rno.apple.com by rn-mailsvcp-mmp-lapp01.rno.apple.com (Oracle Communications Messaging Server 8.1.0.6.20200729 64bit (built Jul 29 2020)) id <0QH800700C7WMF00@rn-mailsvcp-mmp-lapp01.rno.apple.com>; Fri, 25 Sep 2020 12:58:28 -0700 (PDT) X-Va-A: X-Va-T-CD: 65bc0c648f62ce2e65cfa78577075f51 X-Va-E-CD: c42843ba1a3af769be80248338857213 X-Va-R-CD: 93129b97177b7332238dac8ebc9e30bf X-Va-CD: 0 X-Va-ID: 18d264d7-66c4-4a5c-a342-cc609edf5f21 X-V-A: X-V-T-CD: 65bc0c648f62ce2e65cfa78577075f51 X-V-E-CD: c42843ba1a3af769be80248338857213 X-V-R-CD: 93129b97177b7332238dac8ebc9e30bf X-V-CD: 0 X-V-ID: 4b1cebb1-66d0-46c8-afb6-8a1ee618557b X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-09-25_17:2020-09-24, 2020-09-25 signatures=0 Received: from localhost.localdomain (unknown [17.234.68.71]) by rn-mailsvcp-mmp-lapp01.rno.apple.com (Oracle Communications Messaging Server 8.1.0.6.20200729 64bit (built Jul 29 2020)) with ESMTPSA id <0QH800Z67CTEX300@rn-mailsvcp-mmp-lapp01.rno.apple.com>; Fri, 25 Sep 2020 12:58:27 -0700 (PDT) From: Tommy Pauly Content-type: multipart/alternative; boundary="Apple-Mail=_E1492263-AF85-42EF-B6BB-43DD5D65BEA6" MIME-version: 1.0 (Mac OS X Mail 14.0 \(3654.0.3.2.26\)) Subject: DNS HTTPS/SVCB record type support in iOS 14 Message-id: <6694476E-A51B-44AD-AE53-A31D705B9DC4@apple.com> Date: Fri, 25 Sep 2020 12:58:26 -0700 To: dnsop WG , QUIC WG X-Mailer: Apple Mail (2.3654.0.3.2.26) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-09-25_17:2020-09-24, 2020-09-25 signatures=0 Archived-At: X-BeenThere: quic@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Main mailing list of the IETF QUIC working group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Sep 2020 19:58:33 -0000 --Apple-Mail=_E1492263-AF85-42EF-B6BB-43DD5D65BEA6 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hello DNSOP & QUIC, I wanted to provide an update that the production version of iOS 14, = which shipped last week, includes support for sending HTTPS (SVCB) DNS = queries (RR type 65) for applications using our system networking APIs. The implementation status has been updated here: = https://github.com/MikeBishop/dns-alt-svc/blob/master/svcb-implementations= .md = For those with HTTP/3 QUIC deployments, this means that (when HTTP/3 = experimental support is enabled) iOS will use the ALPN indication in the = HTTPS record to enable HTTP/3 prior to receiving an Alt-Svc indication. = As previously noted on the DNSOP list, Cloudflare is already supporting = publishing these records, and we=E2=80=99d encourage other server = deployments that support QUIC to do the same. To note, this behavior is the same in the betas of macOS 11. Best, Tommy= --Apple-Mail=_E1492263-AF85-42EF-B6BB-43DD5D65BEA6 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hello= DNSOP & QUIC,

I = wanted to provide an update that the production version of iOS 14, which = shipped last week, includes support for sending HTTPS (SVCB) DNS queries = (RR type 65) for applications using our system networking = APIs.

The = implementation status has been updated here: https://github.com/MikeBishop/dns-alt-svc/blob/master/svcb-impl= ementations.md

For those with HTTP/3 QUIC deployments, this means that (when = HTTP/3 experimental support is enabled) iOS will use the ALPN indication = in the HTTPS record to enable HTTP/3 prior to receiving an Alt-Svc = indication. As previously noted on the DNSOP list, Cloudflare is already = supporting publishing these records, and we=E2=80=99d encourage other = server deployments that support QUIC to do the same.

To note, this behavior = is the same in the betas of macOS 11.

Best,
Tommy
= --Apple-Mail=_E1492263-AF85-42EF-B6BB-43DD5D65BEA6--