Update 2.1.-Installation.md

Author: ccbogel

docs/doc/en/2.1.-Installation.md

@@ -57,7 +57,7 @@ Remove the back ticks that surround the command line instructions ` as these are
 
 ### Debian / Ubuntu / Lubuntu / ZorinOS Linux
 
-There is an executable file in the releases page for Ubuntu 24.04 for the 3.6 release. Download and double click to run.
+There is an executable file in the releases page for Ubuntu 24.04 for the 3.8 release. Download and double click to run.
 
 Alternatively, run QualCoder from the source code: