With version 5.0.0, router5 is now a monorepo: all repos have been imported into https://github.com/router5/router5. This will make maintenance and release of new versions easier.
Bug fixes
Not found state is now passed to middleware functions on start: if you use allowNotFound option and have custom middleware functions, make sure they still work.
Default options
router strictQueryParams option is now false by default: if you currently don't specify that option, you need to explicitely set it to true to keep the same behaviour.
browser plugin option preserveHash is now true by default
Packages renamed
router5.helpers package has been renamed to router5-helpers
router5.transition-path package has been renamed to router5-transition-path
