There could ... but there probably won't be.
I'm pretty committed to not updating redistributables with the installer any more. There's no real need to do so, and updating them has really
always been beyond Sigil's purview. If there's one installed that it can use, it should use it. If not, it should install one it
can use. Simple. Doing anything else is over-complicating the process and introducing a potential failure point (as RbnJrg can attest to) for no real gain.