That's generally not what Debian users do. You can "pin" only specific packages from Debian testing. It's not guaranteed to work, but for end user facing softw

That's generally not what Debian users do. You can "pin" only specific packages from Debian testing. It's not guaranteed to work, but for end user facing software that nothing else links to, like Wireshark, it's likely to be completely fine. But no guarantees. The search term is probably "apt pinning" but it's also in the Debian Wiki. If you find that you'd rather rebuild the latest source package, you can rebuild the latest source package (apt build-dep will even install the build environment for you) and all the Debian specific patches will be included.