With your active input, we’ve continued to make progress and Magento 2.1 Release Candidate 3 (RC3) is now available. Please upgrade to this new version and continue to test and submit any issues you find over the next week. You should also start upgrading your extensions to support Magento 2.1, if you haven’t done so already. Information about Community Edition RC3 software is available in the release notes and additional detail on breaking changes to API classes, database schema, and user interfaces between Magento 2.0 and 2.1 is provided in a technical bulletin.
You can access the software from GitHub (https://github.com/magento/magento2) or repo.magento.com. Any issues you discover should be filed on the GitHub repository.
Thank you in advance for helping to ensure that Magento Community Edition 2.1 is ready for release!