Firmware upgrade from 3.6 to 4.5 Is it needed?

[RDBandit]

Has anyone sent their Bel 995 back to Bel for upgrade from Firmware vers. 3.6 to vers. 4.5? I got mine off eBay Version 3.6, FCC Id# QL4G1S7 ( I know I should have gotten from Roy, but i did not know about Roy when I bought it.) and was wondering if it would be worth $85 to upgrade.
Was there a noticable difference:

For instance:
Falseing- Laser and POP?
Better Filtering- door openers?
Detection Range?

Please let me know... I am looking to send it back shortly if I feel the need to.

[SmaartAasSaabr]

For $85 I probably wouldn't unless it started giving clear performance issues, random falsing, Self Cal's...

For just the cost of shipping I would.

[compu44]

There is a decrease in POP falsing betwee 3.6 and 4.5, but that's pretty much it.