+<tag>4.4, 5.6.15</tag>
+ <item>The required format for the date in a changelog entry and in the
+ Date control field is now precisely specified.
+ </item>
+<tag>5.1</tag>
+ <item>A control paragraph must not contain more than one instance of a
+ particular field name.
+ </item>
+<tag>5.4, 5.5, 5.6.24</tag>
+ <item>Document and recommend the <tt>Checksums-Sha1</tt>
+ and <tt>Checksums-Sha256</tt> fields in <file>*.dsc</file>
+ and <file>*.changes</file> files.
+ </item>
+<tag>5.6.2</tag>
+ <item>The syntax of the <tt>Maintainer</tt> field is now must rather
+ than should.
+ </item>
+<tag>5.6.3</tag>
+ <item>The comma separating entries in <tt>Uploaders</tt> is now must
+ rather than should.
+ </item>
+<tag>5.6.8, 7.1, 11.1.1</tag>
+ <item>Architecture wildcards may be used in addition to specific
+ architectures in <file>debian/control</file> and <file>*.dsc</file>
+ Architecture fields, and in architecture restrictions in build
+ relationships.
+ </item>
+<tag>6.3</tag>
+ <item>Maintainer scripts are no longer guaranteed to run with a
+ controlling terminal and must be able to fall back to noninteractive
+ behavior (debconf handles this). Maintainer scripts may abort if there
+ is no controlling terminal and no reasonable default for a high-priority
+ question, but should avoid this if possible.
+ </item>
+<tag>8.4</tag>
+ <item>All shared library development files are no longer required to be
+ in the <tt>-dev</tt> package, only be available when the <tt>-dev</tt>
+ package is installed. This allows the <tt>-dev</tt> package to be split
+ as long as it depends on the additional packages.
+ </item>