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diff --git a/lib/kernel/doc/src/notes.xml b/lib/kernel/doc/src/notes.xml
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@@ -30,6 +30,79 @@
</header>
<p>This document describes the changes made to the Kernel application.</p>
+<section><title>Kernel 4.0</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Fix error handling in <c>file:read_line/1</c> for Unicode
+ contents.</p>
+ <p>
+ Own Id: OTP-12144</p>
+ </item>
+ <item>
+ <p>
+ Introduce <c>os:getenv/2</c> which is similar to
+ <c>os:getenv/1</c> but returns the passed default value
+ if the required environment variable is undefined.</p>
+ <p>
+ Own Id: OTP-12342</p>
+ </item>
+ <item>
+ <p>
+ It is now possible to paste text in JCL mode (using
+ Ctrl-Y) that has been copied in the previous shell
+ session. Also a bug that caused the JCL mode to crash
+ when pasting text has been fixed.</p>
+ <p>
+ Own Id: OTP-12673</p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ New BIF: <c>erlang:get_keys/0</c>, lists all keys
+ associated with the process dictionary. Note:
+ <c>erlang:get_keys/0</c> is auto-imported.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-12151 Aux Id: seq12521 </p>
+ </item>
+ <item>
+ <p>
+ The internal group to user_drv protocol has been changed
+ to be synchronous in order to guarantee that output sent
+ to a process implementing the user_drv protocol is
+ printed before replying. This protocol is used by the
+ standard_output device and the ssh application when
+ acting as a client. </p>
+ <p>
+ This change changes the previous unlimited buffer when
+ printing to standard_io and other devices that end up in
+ user_drv to 1KB.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-12240</p>
+ </item>
+ <item>
+ <p>The <c>inflateInit/2</c> and <c>deflateInit/6</c>
+ functions now accepts a WindowBits argument equal to 8
+ and -8.</p>
+ <p>
+ Own Id: OTP-12564</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Kernel 3.2</title>
<section><title>Fixed Bugs and Malfunctions</title>