The latest version available is Scratch Text Editor 2.0.1, which will be used by default on Elementary OS 0.3 Isis.
In this article I will show you how to install Scratch Text Editor 2.0.1 on Ubuntu 14.04 Trusty Tahr, Linux Mint 17 Qiana and Pinguy OS 14.04
Because it is available via PPA, installing Scratch Text Editor 2.0.1 on the listed Ubuntu, Linux Mint, Pinguy OS and Elementary OS systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the scratch-text-editor package. Like this:
$ sudo add-apt-repository ppa:elementary-os/daily
$ sudo apt-get update
$ sudo apt-get install scratch-text-editor
Optional, to remove scratch, do:
$ sudo apt-get remove scratch-text-editor