diff --git a/en_US.ISO8859-1/books/porters-handbook/versions/chapter.xml b/en_US.ISO8859-1/books/porters-handbook/versions/chapter.xml
index 437ec903e6..e6e1504bb7 100644
--- a/en_US.ISO8859-1/books/porters-handbook/versions/chapter.xml
+++ b/en_US.ISO8859-1/books/porters-handbook/versions/chapter.xml
@@ -419,8 +419,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r321369</revnumber></entry>
 	    <entry>July 22, 2017</entry>
 	    <entry>12.0-CURRENT after upgrade of copies of clang, llvm,
-	      lld, lldb, compiler-rt and libc++ to 5.0.0 (trunk r308421).
-	      (<revnumber>r321369</revnumber>).</entry>
+	      lld, lldb, compiler-rt and libc++ to 5.0.0 (trunk r308421).</entry>
 	  </row>
 
 	  <row>
@@ -428,8 +427,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r321688</revnumber></entry>
 	    <entry>July 29, 2017</entry>
 	    <entry>12.0-CURRENT after adding NFS client forced dismount
-	      support <command>umount -N</command>.
-	      (<revnumber>r321688</revnumber>).</entry>
+	      support <command>umount -N</command>.</entry>
 	  </row>
 
 	  <row>
@@ -437,8 +435,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r322762</revnumber></entry>
 	    <entry>August 21, 2017</entry>
 	    <entry>12.0-CURRENT after WRFSBASE instruction become
-	      operational on amd64.
-	      (<revnumber>r322762</revnumber>).</entry>
+	      operational on amd64.</entry>
 	  </row>
 
 	  <row>
@@ -446,8 +443,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r322900</revnumber></entry>
 	    <entry>August 25, 2017</entry>
 	    <entry>12.0-CURRENT after PLPMTUD counters were changed to
-	      use &man.counter.9;.
-	      (<revnumber>r322900</revnumber>).</entry>
+	      use &man.counter.9;.</entry>
 	  </row>
 
 	  <row>
@@ -455,8 +451,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r322989</revnumber></entry>
 	    <entry>August 28, 2017</entry>
 	    <entry>12.0-CURRENT after dropping x86 CACHE_LINE_SIZE
-	      down to 64 bytes.
-	      (<revnumber>r322989</revnumber>).</entry>
+	      down to 64 bytes.</entry>
 	  </row>
 
 	  <row>
@@ -464,8 +459,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r323349</revnumber></entry>
 	    <entry>September 8, 2017</entry>
 	    <entry>12.0-CURRENT after implementing poll_wait() in the
-	      LinuxKPI.
-	      (<revnumber>r323349</revnumber>).</entry>
+	      LinuxKPI.</entry>
 	  </row>
 
 	  <row>
@@ -482,8 +476,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry><revnumber>r323910</revnumber></entry>
 	    <entry>September 22, 2017</entry>
 	    <entry>12.0-CURRENT after adding support for 32-bit
-	      compatibility IOCTLs to LinuxKPI.
-	      (<revnumber>r323910</revnumber>).</entry>
+	      compatibility IOCTLs to LinuxKPI.</entry>
 	  </row>
 
 	  <row>
@@ -501,8 +494,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry>October 2, 2017</entry>
 	    <entry>12.0-CURRENT after hiding <literal>struct
 		socket</literal> and <literal>struct unpcb</literal>
-	      from userland.
-	      (<revnumber>r324227</revnumber>).</entry>
+	      from userland.</entry>
 	  </row>
 
 	  <row>
@@ -511,8 +503,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry>October 4, 2017</entry>
 	    <entry>12.0-CURRENT after adding the
 	      <literal>value.u16</literal> field to <literal>struct
-		diocgattr_arg</literal>.
-	      (<revnumber>r324281</revnumber>).</entry>
+		diocgattr_arg</literal>.</entry>
 	  </row>
 
 	  <row>
@@ -540,8 +531,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry>October 26, 2017</entry>
 	    <entry>12.0-CURRENT after fixing
 	      <function>ptrace()</function> to always clear the
-	      correct thread event when resuming.
-	      (<revnumber>r325028</revnumber>).</entry>
+	      correct thread event when resuming.</entry>
 	  </row>
 
 	  <row>
@@ -550,8 +540,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry>November 7, 2017</entry>
 	    <entry>12.0-CURRENT after changing <literal>struct
 		mbuf</literal> layout to add optional hardware
-	      timestamps for receive packets.
-	      (<revnumber>r325506</revnumber>).</entry>
+	      timestamps for receive packets.</entry>
 	  </row>
 
 	  <row>
@@ -560,8 +549,7 @@ is spelled &amp;, < is &lt; and > is &gt;.
 	    <entry>November 15, 2017</entry>
 	    <entry>12.0-CURRENT after changing the layout of
 	      <literal>struct vmtotal</literal> to allow for reporting
-	      large memory counters.
-	      (<revnumber>r325852</revnumber>).</entry>
+	      large memory counters.</entry>
 	  </row>
 	</tbody>
       </tgroup>