According to this article Mehmet, Turkiye upgraded the F-16s with kits supplied by LM. The original program too was designed by LM to upgrade the life of the F-16s with the USAF to 12000 hours.
Forbidden from receiving F-35s, and with its indigenous fighter far from ready, the venerable F-16 is set to soldier on in Turkish service.
www.twz.com
Moreover & this is very important, you cannot touch the F-16 for any modernization / upgradation whatsoever without US approval else they'd castrate you.
I ask you once again Mehmet, what's the rate of inbreeding in Turkiye? No country with > 15% in breeding has ever achieved huge scientific breakthroughs. That requires lot of brain power which in breeding diminishes.
However In breeding contributes significantly to creating ghazis fedaayen & shaheeds. Alhamdulillah!