Dear Eric and Laurin, See below regarding the software interop topic of DNS SSR workstream. There are no remaining questions for this topic. Review Team volunteers: Eric, Laurin Workstream: DNS SSR Topic: Software interop: Testbed of software variants (NS / resolver / etc.) for regression testing Q: Has ICANN considered creating a testbed environment for testing purposes? If so, can you inform the team about your activities. If this has been considered and abandoned, please provide the team with your reasoning. A: ICANN’s Office of the CTO (OCTO) is actively working on such a testbed as part of the RSSAC Caucus Work Party<https://www.icann.org/resources/pages/rssac-caucus-work-parties-2017-06-20-e...> on resolvers (https://www.icann.org/en/system/files/files/rssac-sow-resolver-behaviors-07a...). The testbed is expected to be operational by mid-2019, and instructions on setting up the testbed are open to anyone interested. Best, Jennifer -- Jennifer Bryce Senior Reviews Coordinator Internet Corporation for Assigned Names and Numbers (ICANN) Email: jennifer.bryce@icann.org Skype: jennifer.bryce.icann www.icann.org