Don't do comprehensive E2E tests. Have a small set of E2E tests to verify the most critical functionality is working. Don't verify every single business rule.

Don't do comprehensive E2E tests. Have a small set of E2E tests to verify the most critical functionality is working. Don't verify every single business rule. There are other techniques that help you reduce risk: - Good unit and integration tests. - Effective Monitoring and alerting. - Canary releases or Blue/Green releases. - Continuous integration. - Continuous delivery. - Ability to safely rollback the more recent release.