# Upgrade from 4.x to 5.0

* All services are using FQCN as service ID. 
* We use PSR-18 and PSR-17 instead of HTTPlug.
* Renamed `HttpClientInterface` to `AnalyticsClientInterface`
* Renamed `DataFetcher` to `AnalyticsDataFetcher`
* Updated return value of `AnalyticsDataFetcher::getPageViews` to support more flexible queries. 
* Added PHP7 type hints

# Upgrade from 3.2.2 to 4.0

* Class parameters has been removed to comply with the new Symfony best practices.
* Updated namespace from `Happyr\Google\AnalyticsBundle` to `Happyr\GoogleAnalyticsBundle`.
* Updated service names to include an underscore. Previous: `happyr.google.analytics.data_fetcher` Now: `happyr.google_analytics.data_fetcher`
* New method signature for `DataFetcher::getPageViews`
* We do now use PSR6 cache and Httplug for HTTP messaging.
* Use PSR-4
* Not dependent on Guzzle. We use HTTPlug instead.