diff --git a/cpdfcommand.ml b/cpdfcommand.ml
index 8784631..af54779 100644
--- a/cpdfcommand.ml
+++ b/cpdfcommand.ml
@@ -3,7 +3,7 @@ let demo = false
 let noncomp = false
 let major_version = 2
 let minor_version = 4
-let version_date = "(devel, 16th February 2020)"
+let version_date = "(18th June 2021)"
 
 open Pdfutil
 open Pdfio
diff --git a/mkinstall b/mkinstall
new file mode 100755
index 0000000..a1a0751
--- /dev/null
+++ b/mkinstall
@@ -0,0 +1,2 @@
+#!/bin/bash
+make clean; make; ocamlfind remove cpdf; make install