# Apify Dataset Migration Guide ## Upgrading to 2.0.0 Major update: The old broken Item Collection stream has been removed and replaced with a new Item Collection (WCC) stream specific for the datasets produced by [Website Content Crawler](https://apify.com/apify/website-content-crawler) Actor. In a follow-up release 2.1.0, a generic item collection stream will be added to support all other datasets. After upgrading, users should: - Reconfigure dataset id and API key - Reset all streams ## Upgrading to 1.0.0 A major update fixing the data ingestion to retrieve properly data from Apify. Please update your connector configuration setup.