Defer PEP 426 again

pep-0426.txt

@@ -7,7 +7,7 @@ Author: Nick Coghlan <ncoghlan@gmail.com>,
         Donald Stufft <donald@stufft.io>
 BDFL-Delegate: Donald Stufft <donald@stufft.io>
 Discussions-To: Distutils SIG <distutils-sig@python.org>
-Status: Draft
+Status: Deferred
 Type: Informational
 Content-Type: text/x-rst
 Requires: 440, 508, 518
@@ -47,9 +47,9 @@ the core metadata format.
 Note on PEP Deferral
 ====================
 
-This PEP was deferred for an extended period, from December 2013 through to
-March 2017, as distutils-sig worked through a number of other changes. These
-changes included:
+This PEP was initially deferred for an extended period, from December 2013
+through to March 2017, as distutils-sig worked through a number of other
+changes. These changes included:
 
 * defining a binary compatibility tagging format in PEP 425
 * defining a binary archive format (``wheel``) in PEP 427
@@ -74,8 +74,18 @@ of publishing and distributing software to be moved out to PEP 459, a separate
 proposal for a number of standard metadata extensions that provide additional
 optional information about a release.
 
+As of September 2017, it has been deferred again, on the grounds that
+it doesn't actually help solve any particularly pressing problems:
+
+- JSON representation would be better handled through defining a
+  transformation of the existing metadata 1.2 fields
+- clarification of the additional fields defined in the past few
+  years and related changes to the spec management process would
+  be better covered in a `minor spec version update`_
+
 .. _packaging.python.org: https://packaging.python.org/
 .. _specifications: https://packaging.python.org/specifications/
+.. _minor spec version update: https://mail.python.org/pipermail/distutils-sig/2017-September/031465.html
 
 
 Purpose