Do it old school and....scroll! You will be looking at early 2020-June 2020 threads, and annually from around March - June. There are alot of really good threads on all things inprocessing and fourth year related.
Last cycle is when the boots changed from the green to coyote brown. I would wait until the Class of 2025 Appointee Book comes out AND....join the Class of 2025 facebook page and watch for announcements from the Parent Liasion - not someone with an opinion - the PARENT LIASON or OFFICIAL announcement/posts. Last year, boot info was BEFORE the appointee book came out.
My advice: You will get familiar with brands like Nike, Rocky, Danner.....I suggest buying several and there is variance even between the same boot ordered multiple times. Wow did I have to keep up with returns! You can also ask for a military discount and specifically if a USAFA appointee can also get the military discount. My DD chose one pair Nike (not waterproof and lighter) and one pair Rockys that she took to BCT. After BCT, she requested I mail the Nikes for school use. At xmas, she brought home the issued boots since she had too many. I highly suggest having a replacement sneaker/running shoe as well - she also requested a 2nd pair be mailed.
Start ordering as soon as the information comes out, vendors will run out. Time your workouts so that you are doing a light walk in them at first, then build up to running. DO NOT run until you get a blister. It will just set you back. Again, start early and very light and then build up. You can also start buying all things blister related to have handy.