References to the Camel K Operator channel need to change from "1.6.x"  to "latest"

Installing Camel K
modules/camel-k/getting-started-with-camel-k/proc-installing-camel-k.adoc

Upgrading the Camel K operator
modules/camel-k/getting-started-with-camel-k/proc-upgrading-camel-k-operator.adoc
This one might be more involved as the upgrade behavior might change with a "latest" channel.

Mention in the release notes
release-notes/modules/release-notes/ref-camel-k-relnotes.adoc