During January 2025, Abit Frosty enhanced domain blocking functionality in the MHSanaei/3x-ui repository by implementing support for Russian domain extensions, specifically .su and .рф (xn--p1ai). This work involved updating the BlockDomainsOptions and DomainsOptions components using HTML and front-end development skills to ensure the new extensions were properly recognized and managed. The feature was delivered as a single, traceable commit linked to issue #2635, aligning with product requirements and maintaining clear documentation. While the scope was focused and no bugs were reported or fixed, the update addressed a targeted need for expanded domain filtering capabilities.