SF2281 TRIM support firmware by Sandisk that actually works? When?

BTW FYI way back in May 2012 yours truly flagged a potential TRIM issue right here on this forum: http://forums.sandisk.com/t5/SanDisk-Extreme-SSD/Extreme-SSD-120GB-No-TRIM-support-for-latest-Linux-150-wasted/td-p/269935 Soon after I received and installed my Sandisk Extreme SSD I posted that all seemed fine. Perhaps I was premature in my assessment? (The prevailing wisdom back then was that Intel had exhaustively eliminated SF firmware glitches over a 12-month testing process before confidently releasing SF-driven SSDs of their own, and therefore SF was a safe bet given Intel’s QC regime…)