Can I continue to use use CEP 6.0 with InDesign CC2018

In debug mode - using CEP 6.0 works okay, but ZXPInstaller is objecting to installing built version .zxp - claiming incompatibility.

My manifest's version reads looks like this:

<HostList>

   <Host Name="IDSN" Version="[11.0,13.9]" />

</HostList>

Thanks,

Pete