telegram-desktop.x86_64: W: invalid-desktopfile /usr/share/applications/org.telegram.desktop.desktop file contains key "SingleMainWindow" in group "Desktop Entry", but keys extending the format should start with "X-"
.desktop file is not valid, check with desktop-file-validate

telegram-desktop.src: W: no-version-in-last-changelog
telegram-desktop.x86_64: W: no-version-in-last-changelog
The latest changelog entry doesn't contain a version. Please insert the
version that is coherent with the version of the package and rebuild it.

2 packages and 0 specfiles checked; 0 errors, 3 warnings.