Yes, the notice (NOTICE: New region restrictions on verifying Brave Rewards with Gemini) was posted May 10. Up until May, you were able to connect to Gemini. The only notice you would have received would have been the one posted by support staff in Brave Community. Since that time, Brave Help has also created a Help Center topic (linked above but posting again Supported regions for verifying Brave Rewards with a custodial wallet provider ). You can use those two links to track the status of Brave-Gemini supported countries.
So, basically, your country could be (not saying that is the case) supported by both Brave and Gemini, but you would still not be able to connect. Brave-Gemini verification is unavailable except for the countries listed in the notice. Your Rewards in Brave will become unverified if you are eligible to receive ads/earnings.