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diff --git a/lib/crypto/doc/src/notes.xml b/lib/crypto/doc/src/notes.xml
index 0a3f68ade2..eb958cbc14 100644
--- a/lib/crypto/doc/src/notes.xml
+++ b/lib/crypto/doc/src/notes.xml
@@ -31,6 +31,65 @@
   </header>
   <p>This document describes the changes made to the Crypto application.</p>
 
+<section><title>Crypto 4.5</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p> A new <c>rand</c> module algorithm, <c>exro928ss</c>
+	    (Xoroshiro928**), has been implemented. It has got a
+	    really long period and good statistical quality for all
+	    output bits, while still being only about 50% slower than
+	    the default algorithm. </p><p> The same generator is also
+	    used as a long period counter in a new <c>crypto</c>
+	    plugin for the <c>rand</c> module, algorithm
+	    <c>crypto_aes</c>. This plugin uses AES-256 to scramble
+	    the counter which buries any detectable statistical
+	    artifacts. Scrambling is done in chunks which are cached
+	    to get good amortized speed (about half of the default
+	    algorithm). </p>
+          <p>
+	    Own Id: OTP-14461 Aux Id: PR-1857 </p>
+        </item>
+        <item>
+          <p>
+	    Crypto's single C-file are splitted into multiple files.
+	    The different coding styles in the different parts are
+	    unified into a single one.</p>
+          <p>
+	    Own Id: OTP-14732 Aux Id: PR-2068, PR-2095 </p>
+        </item>
+        <item>
+          <p>
+	    Build configuration of the <c>crypto</c> application has
+	    been moved from the <c>erts</c> application into the
+	    <c>crypto</c> application.</p>
+          <p>
+	    Own Id: OTP-15129</p>
+        </item>
+        <item>
+          <p>
+	    Crypto internals is partly re-written to facilitate a
+	    planned new and possibly faster api for block and stream
+	    ciphers.</p>
+          <p>
+	    Own Id: OTP-15451</p>
+        </item>
+        <item>
+          <p>
+	    Adds two hash functions blake2b and blake2s (64 bit hash
+	    and 32 bit hash respectively). These are modern and
+	    standard hash functions used in blockchains and encrypted
+	    communication protocols. The hash functions are available
+	    in OpenSSL since version 1.1.1.</p>
+          <p>
+	    Own Id: OTP-15564 Aux Id: PR-2129 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Crypto 4.4</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>