--- a/scripts/help/__unimplemented__.m	Sun Apr 19 20:25:11 2020 +0200
+++ b/scripts/help/__unimplemented__.m	Tue May 19 17:44:24 2020 +0900
@@ -73,8 +73,8 @@
       txt = ["Octave provides lsode and ode15i, ode15s, ode23, ode23s, ", ...
              "and ode45 for solving differential equations.  For more", ...
              "information try @code{help lsode}, @code{help ode45}.  ", ...
-             "Matlab-compatible ODE functions are provided by the odepkg ", ...
-             "package.  See @url{https://octave.sourceforge.io/odepkg/}."];
+             "Further specialized ODE solvers are provided by the odepkg ", ...
+             "package.  See @url{https://wiki.octave.org/Odepkg}."];
 
     case "polarplot"
       txt = ["polarplot is not implemented.  Consider using polar."];