Yes, Toyota has changed the interval from engines with 5w-30 and 5w-20 to 5000 miles/8000km or 6 months whichever comes first with synthetic or conventional. I believe it was because of the oil sludge issues with some of the engines.
I would use a Napa proselect. Cheaper than Gold. You dont need a Gold filter for 8000km interval. I been using pro selects regularly and they are built excellent. Also, you wont find a cheaper better filter in canada for the price. They sell for 3-4$. The Gold is 10-12$..which id only consider for longer runs.
+1. It's a 99 Camry and your in Canada. Napa filters will be fine. Personally I would buy a few filters at rockauto at a time to save on shipping.
If your trans filter was anything like my 98 Sienna it's called a strainer and Toyota doesn't recommend you change it. I changed the tranny filter on the Sienna 3 times over the course of 285,000 km and used a Wix or whatever the parts store had in stock. Used Mobil 1 ATF at first and then switched to maxlife ATF later.