Update MATLAB and Octave versions compatibility for stable release

_includes/download-stable.html

@@ -14,10 +14,10 @@
 
   <section class="dynare_section" id="stable_content1">
     <p>
-      Compatible with Windows (7, 8.1, 10), MATLAB (R2007b and later) and
-      GNU Octave (4.4.1 only,
-      <a href="https://ftp.gnu.org/gnu/octave/windows/octave-4.4.1-w64-installer.exe">64-bit</a>
-      or <a href="https://ftp.gnu.org/gnu/octave/windows/octave-4.4.1-w32-installer.exe">32-bit</a>)
+      Compatible with Windows (7, 8.1, 10), MATLAB (R2009b and later) and
+      GNU Octave (5.2.0 only,
+      <a href="https://ftp.gnu.org/gnu/octave/windows/octave-5.2.0_1-w64-installer.exe">64-bit</a>
+      or <a href="https://ftp.gnu.org/gnu/octave/windows/octave-5.2.0_1-w32-installer.exe">32-bit</a>)
     </p>
     <p>Available as an executable installer, and as 7z and zip archives.</p>
     <p class="stable">
@@ -37,12 +37,10 @@
   <section class="dynare_section" id="stable_content2">
     <p>
       Compatible with macOS (10.11 and later, earlier versions may work but
-      have not been tested) and any 64-bit MATLAB. This package does NOT
-      support Dynare on Octave. To use Dynare with Octave on macOS, see the
-      <a href="http://www.dynare.org/DynareWiki/InstallOnMacOSX">Installation instructions for
-      macOS</a>. <b>NB</b>: This
-      package is unsigned; to run it, you need to right click on it and select
-      "Open" from the menu that pops up.
+      have not been tested), any 64-bit MATLAB, and GNU Octave (4.4.1 installed
+      via <a href="https://octave-app.org">https://octave-app.org</a>). <b>NB</b>:
+      This package is unsigned; to run it, you need to right click on it and
+      select "Open" from the menu that pops up.
     </p>
     <p class="stable">
       <i class="fas fa-file-download"></i>