Apple have released a new build of macOS 11.0.1 Big Sur (20B50) blocking 13-inch MacBook Pro (Late 2013 / Mid 2014) from installation, they have also put out this support article acknowledging the issues with bricking we mentioned in our post earlier this week.
At this stage we are unsure if Apple will be able to release a fix that enables these models to upgrade again or whether they are forever excluded from macOS Big Sur.
