Metermaid patch

On 2006-06-27 the post at the folowing link
asterisk.org/node/97
Says that the metermaids patch was commited to SVN trunk…

Now please bear with me, as I an still new to this…
If I am runnign asterisk 1.2.12.1, do I still need to load the metermaid patch, or because I am running a version released after 2006-06-27, am I ok?

Or does all of this mean that metermaid is being added to 1.4? Or, am I just flat out wrong on all of this?

Sorry for being such a noob…