The generateNewTektonPipelines() function in our pipeline generation script currently contains a legacy fallback path for generating pipelines using a sed-based approach. This block is only intended to support older versions (1.10 and below) and should be removed once 1.10 is fully released to simplify maintenance and reduce confusion.

The relevant section is clearly marked in the code:

else
# Fallback to old sed-based approach if create-new-version.sh doesn't exist
# TODO remove this once we no longer need the old way of building things in 1.10
echo " > Using legacy sed-based pipeline generation"
for y in ${regex}*.yaml; do
...
done
fi