Switch to side-by-side view

--- a/website/release-1.21.html
+++ b/website/release-1.21.html
@@ -59,9 +59,16 @@
       <ul>
         <li>1.21.4:
           <ul>
+            <li>Show confirmation dialog when opening a temporary file
+              (to warn the user about possible lost edits). The dialog
+              has a 'disable' checkbox.</li>
             <li>Fixed bug which would crash the GUI when clicking an
               Open link after modifying the indexing configuration
               through the GUI tool.</li>
+            <li>Fix not showing results with paths over 1000
+              characters.</li>
+            <li>Fix Show subdocs: too many docs were shown in some
+              cases, and the Preview button in the dialog was inactive.</li>
           </ul>
         <li>1.21.3: 
         <ul>