Has Lubeguard ATF Treatment Moved Away from Esters

I noticed on the bottle of ATF additive that LubeGuard makes... a statement like (Old Formula-Esters) and uses words like (Organic Friction Modifiers). Could this indicate that Esters as we knew them in ATF applications are being replaced with Organic Friction Modifiers?
 
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CA.
Hasn't Lubeguard been around a long time with their current formula? The product works well in a transmission. I used it with good results in an old clunker I had that delayed going into Reverse. About a month after a tranny pan drop and filter replacement, I decided to do a tranny line flush. I added Lubeguard at that time and eliminated the delay going into Reverse. AD
 
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