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diff --git a/lib/compiler/doc/src/notes.xml b/lib/compiler/doc/src/notes.xml
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@@ -31,94 +31,6 @@
<p>This document describes the changes made to the Compiler
application.</p>
-<section><title>Compiler 6.0</title>
-
- <section><title>Fixed Bugs and Malfunctions</title>
- <list>
- <item>
- <p>
- The compiler optimizes away building of terms that are
- never actually used. As a result, the compiler in OTP 18
- may produce more warnings for terms that are built but
- not used than the compiler in OTP 17.</p>
- <p>
- Own Id: OTP-12453</p>
- </item>
- <item>
- <p>
- Using a map could incorrectly suppress warnings for
- unused variables.</p>
- <p>
- Own Id: OTP-12515</p>
- </item>
- <item>
- <p>
- The compiler now properly reports unknown parse
- transforms. That is, <c>undef</c> exceptions coming from
- the parse transform itself is reported differently from
- the absence of the parse transform.</p>
- <p>
- Own Id: OTP-12723</p>
- </item>
- </list>
- </section>
-
-
- <section><title>Improvements and New Features</title>
- <list>
- <item>
- <p>
- The <c>cerl</c> and <c>cerl_trees</c> modules in the
- <c>compiler</c> application are now documented.</p>
- <p>
- Own Id: OTP-11978</p>
- </item>
- <item>
- <p>
- The deprecated '<c>asm</c>' option has been removed.</p>
- <p>
- *** POTENTIAL INCOMPATIBILITY ***</p>
- <p>
- Own Id: OTP-12100</p>
- </item>
- <item>
- <p>
- Support variables as Map keys in expressions and patterns</p>
- <p>Erlang will accept any expression as keys in Map
- expressions and it will accept literals or bound
- variables as keys in Map patterns.</p>
- <p>
- Own Id: OTP-12218</p>
- </item>
- <item>
- <p>
- Infer Map type information in beam_type compiler
- optimization pass.</p>
- <p>
- Own Id: OTP-12253</p>
- </item>
- <item>
- <p>
- Compiler optimizations have been improved.</p>
- <p>
- Own Id: OTP-12393</p>
- </item>
- <item>
- <p>
- Five undocumented functions in the module <c>core_lib</c>
- have been deprecated and will be removed in the next
- major release. The functions are: <c>get_anno/{1,2}</c>,
- <c>is_literal/1</c>, <c>is_literal_list/1</c>, and
- <c>literal_value</c>. Use the appropriate functions in
- the <c>cerl</c> module instead.</p>
- <p>
- Own Id: OTP-12497</p>
- </item>
- </list>
- </section>
-
-</section>
-
<section><title>Compiler 5.0.4</title>
<section><title>Fixed Bugs and Malfunctions</title>