recommend ipp-usb in case there are devices which support IPP-over-USB

cups.spec

@@ -15,7 +15,7 @@ Summary: CUPS printing system
 Name: cups
 Epoch: 1
 Version: 2.4.1
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: ASL 2.0
 Url: https://openprinting.github.io/cups/
 # Apple stopped uploading the new versions into github, use OpenPrinting fork
@@ -114,6 +114,8 @@ Recommends: nss-mdns
 %endif
 # avahi is needed for mDNS discovery and sharing queues
 Recommends: avahi
+# for IPP-over-USB device support
+Recommends: ipp-usb
 
 # We ship udev rules which use setfacl.
 Requires: acl
@@ -648,6 +650,9 @@ rm -f %{cups_serverbin}/backend/smb
 %{_mandir}/man7/ippeveps.7.gz
 
 %changelog
+* Wed Feb 16 2022 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.4.1-2
+- recommend ipp-usb in case there are devices which support IPP-over-USB
+
 * Mon Feb 07 2022 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.4.1-1
 - 2047665 - cups-2.4.1 is available