From c6d37ba58c505ead46a3e939b3d38236dbd20aa5 Mon Sep 17 00:00:00 2001
From: Erlang/OTP <otp@erlang.org>
Date: Tue, 27 Dec 2011 15:20:44 +0100
Subject: Prepare release

---
 erts/doc/src/notes.xml | 29 +++++++++++++++++++++++++++++
 erts/vsn.mk            |  2 +-
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index cfee978bde..d7967212b1 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -30,6 +30,35 @@
   </header>
   <p>This document describes the changes made to the ERTS application.</p>
 
+<section><title>Erts 5.9.0.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    A feature test for the <c>lwsync</c> instruction
+	    performed on PowerPC hardware at runtime system startup
+	    got into an eternal loop if the instruction was not
+	    supported. This bug was introduced in erts-5.9/OTP-R15B.</p>
+          <p>
+	    Own Id: OTP-9843</p>
+        </item>
+        <item>
+          <p>
+	    I/O events could potentially be delayed for ever when
+	    enabling kernel-poll on a non-SMP runtime system
+	    executing on Solaris. When also combined with
+	    async-threads the runtime system hung before completing
+	    the boot phase. This bug was introduced in
+	    erts-5.9/OTP-R15B.</p>
+          <p>
+	    Own Id: OTP-9844</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Erts 5.9</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/erts/vsn.mk b/erts/vsn.mk
index 1b3cd67947..e773fcb81d 100644
--- a/erts/vsn.mk
+++ b/erts/vsn.mk
@@ -17,7 +17,7 @@
 # %CopyrightEnd%
 # 
 
-VSN = 5.9
+VSN = 5.9.0.1
 SYSTEM_VSN = R15B
 
 # Port number 4365 in 4.2
-- 
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