During January 2025, this developer enhanced domain blocking functionality in the MHSanaei/3x-ui repository by implementing support for Russian domain extensions, specifically .su and .рф (xn--p1ai). The work involved updating the BlockDomainsOptions and DomainsOptions components to recognize and block these additional domains, addressing requirements outlined in issue #2635. Using front-end development skills and working primarily with HTML, the developer ensured that all changes were clearly documented and traceable through a single commit. No bugs were reported or fixed during this period, and the feature was delivered in alignment with the project’s product and planning standards.