turmoil2750 Yes the stable release of QKSMS dates back to 2021, but it still undergoes occasional development in the V branch, and QKSMS is just an open-source alternative for the stock messaging app on Android.
Not all apps require continuous updates to maintain the appearance of being up to date. For instance, if I were to develop a calculator app, I may not find it necessary to continuously update it solely for the sake of appearing up to date. As a calculator, its core functionality remains intact, and users may not expect frequent updates beyond occasional bug fixes.