Review code and make sure there are no usages of deprecated string. Make sure the following regex returns empty: find . -path "*/en/*" -type f -exec grep -l -i "deprecated since 3.3" "{}" \; find . -path "*/en/*" -type f -exec grep -l -i "deprecated since Moodle 3.3" "{}" \; find . -path "*/en/*" -type f -exec grep -l -i "deprecated in 3.3" "{}" \; find . -path "*/en/*" -type f -exec grep -l -i "deprecated in Moodle 3.3" "{}" \;