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To avoid potential security incidents, Tailscale requires testing of its software to ensure that it functions as expected.
This policy applies to code developed by Tailscale for its clients or run on its production servers.
Changes to production code which alter Tailscale’s product functionality should be tested by Tailscale’s continuous integration (CI) system prior to being merged. Testing should not be conducted locally in a development environment or in production.
Exceptionally, changes to production code may be merged without first testing them, such as to resolve an incident. See the Change management policy.
Changes to production code which do not alter product functionality, e.g., changes to documentation, may be but do not need to be tested.
When a new version of the Tailscale client is built, it should be tested prior to being released. This includes testing major product features on supported platforms.
New functionality should be released as part of an unstable track prior to being incorporated in stable client releases. New functionality may be released directly to a stable client to address an incident, such as a security issue.
Changes to Tailscale’s production infrastructure should be tested where possible.
Where possible, infrastructure should be implemented ‘as code’, so that it can be reviewed, approved, and tested as other code changes are.