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diff --git a/lib/syntax_tools/doc/src/notes.xml b/lib/syntax_tools/doc/src/notes.xml
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--- a/lib/syntax_tools/doc/src/notes.xml
+++ b/lib/syntax_tools/doc/src/notes.xml
@@ -32,6 +32,32 @@
<p>This document describes the changes made to the Syntax_Tools
application.</p>
+<section><title>Syntax_Tools 2.0</title>
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>The abstract data type in <c>erl_syntax</c> is
+ augmented with types and function specifications.</p>
+ <p>The module <c>erl_prettypr</c> pretty prints types and
+ function specification, and the output can be parsed.</p>
+ <p>The types of record fields are no longer ignored. As a
+ consequence <c>erl_syntax_lib:analyze_record_field/1</c>
+ returns <c>{Default, Type}</c> instead of <c>Default</c>.
+ The functions <c>analyze_record_attribute</c>,
+ <c>analyze_attribute</c>, <c>analyze_form</c>, and
+ <c>analyze_forms</c> in the <c>erl_syntax_lib</c> module
+ are also affected by this incompatible change.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-12863</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Syntax_Tools 1.7</title>
<section><title>Improvements and New Features</title>