What is the current status of TRIM on OS X?

Carl Hoefs <[email protected]> Fri, 13 Dec 2013 11:49:58 -0800
Newsgroups gmane.comp.macosx.admin
Message-ID <[email protected]>
What is the current status of TRIM (for spatially distributing writes to SSD drives so they last longer) on OS X? 

Is it still the case that OS X has TRIM enabled only for Apple-preinstalled SSDs?

Is it still necessary to utilize a "TRIM enabler" app if the boot HDD is swapped out for a third-party SSD?

Is enabling TRIM an option for external non-boot SSD drives?

-Carl