To fully migrate to v0.147.9 you should follow the following steps (if you did not already do so): move everything from the _default directory to the root of the layouts folder remove the _default folder rename all single.html files to page.html rename all list.html files to section.html move everything from the layouts/page folder to the root of the layouts folder remove the page folder rename the config.yaml (or toml/json) file to hugo.yaml (or toml/json) replace :filename to :contentbasena...