Different behavior of useUrlQueryParams after upgrading from v6 to v7.

[lukascivil]

After updating my application from v6("6.28.1") to v7("7.1.1"), I noticed a different behavior in my application, a useEffect with a dependency on urlQueryParams was no longer triggered.

// Using <HashRouter> Strategy
const [urlQueryParams] = useUrlQueryParams()

 useEffect(() => {
    // Works on v6 but not on v7
    console.log('Updated urlQueryParams', urlQueryParams)
  }, [urlQueryParams])

To solve the problem on v7 I need to add an event listener

  useEffect(() => {
    const onHashChange = (event: HashChangeEvent): void => {
      const eventHash = new URL(event.newURL).hash

      console.log('Updated urlQueryParams', eventHash)
    }

    window.addEventListener('hashchange', onHashChange)

    return () => window.removeEventListener('hashchange', onHashChange)
  }, [queryParamName])

Was this difference in behavior expected, if so why was it not documented in the migration document?