Not really. HIV vaccine candidates as well as trials for them have existed for decades. One of the earlier ones: https://en.wikipedia.org/wiki/AIDSVAX

The issue is just that the trials have all failed. Since the earliest vaccines, a lot has been learned about HIV and its interactions with humans, which allows advanced approaches like this one, targeting parts of the virus that we know are highly conserved.

I've been hearing about upcoming cures to horrible diseases two or three times a month for several decades and the number that pan out is a rounding error. The only noteworthy development I can think of over the past decade is a 'cure' for peanut allergies (and when I looked into it closer, it turns out it's not even a complete cure). There's apparently neither any incentive nor stomach for humanity to be realistic about how much progress we really make, which, though considerable, is not breathtaking.