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Being prompted to install 2020.4.11 when it's already installed....

Do you have a service visit scheduled soon? Common for them to pre-stage a firmware update (even to the same version if the car is already current) so they can quickly redeploy after any parts replacements.

Yes. Dropping it off Monday to replace the contactors. Hadn't thought it would have resulted in any CANBUS parts needing firmware but I guess that makes sense. When I replaced my chargeport it was non functional until I installed the staged software to update it the chargeport firmware. Lucky I had software ready to install.