GNU/Linux Ubuntu Installing Vala Compiler Guide
You Are Welcome! The linked Tutorials Show You Step-by-Step How to Install Vala Compiler in Ubuntu GNU/Linux Desktops.
And Vala for Ubuntu is new Programming Language that aims to bring modern programming language features to GNOME developers without imposing any additional runtime requirements and without using a different ABI compared to Apps and Libraries written in C.
Moreover, the Vala Compiler (valac) is a self-hosting Compiler that translates Vala Source Code into C Source and Header Files.
Finally, this guide includes detailed instructions about to Getting-Started with Vala Programming on Ubuntu.
Especially relevant, to setup the Latest Compiler you may see instead: Vala Source Installation.