Subject: [quicwg/base-drafts] 0580d7: Unified ACK frame

From: Martin Thomson <[email-masked]>
Date: Mon, 27 Aug 2018 01:10:44 -0700

Branch: refs/heads/one-ack
  Home:   https://github.com/quicwg/base-drafts
  Commit: 0580d78fb6ed4ed06dd756e02ec401799a892b56
      https://github.com/quicwg/base-drafts/commit/0580d78fb6ed4ed06dd756e02ec401799a892b56
  Author: Martin Thomson <[email-masked]>
  Date:   2018-08-27 (Mon, 27 Aug 2018)

  Changed paths:
    M draft-ietf-quic-recovery.md
    M draft-ietf-quic-transport.md

  Log Message:
  -----------
  Unified ACK frame

This takes the design discussed on the list and enacts it.  This turns
out to be quite simple.  Lots of red in this change.

This treats ECT(1) as equivalent to unmarked, meaning that QUIC won't be
able to use ECT(1) without an extension or revision.  That keeps the
encoding simpler.

Closes #1439.

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