In Texis version 8, the --translate-from-version option was added to the Vortex texis executable. This option attempts to translate a script from the given version (e.g. 7) to the executable's version (i.e. 8 if run by a version 8 texis). It can be used to help transition scripts to new syntax, as a more permanent upgrade than using the syntaxversion pragma, since older versions' syntax will eventually no longer be supported by either method. See here for details.