Title: Update – Support environment-variable based sandbox/cli (batch) container detection Author: WordPress VIP Documentation Published: March 25, 2021 Last modified: August 5, 2025 --- 1. [Changelog](https://docs.wpvip.com/changelog/) 2. [VIP MU plugins [Production]](https://docs.wpvip.com/changelog/vip-mu-plugins-production/) 3. Update – Support environment-variable based sandbox/cli (batch) container detection # Update – Support environment-variable based sandbox/cli (batch) container detection --- 25 March 2021 21:04:40 GMT+0000 [ VIP MU plugins [Production] ](https://docs.wpvip.com/changelog/vip-mu-plugins-production/) [ Permalink ](https://docs.wpvip.com/changelog/vip-mu-plugins-production/update-support-environment-variable-based-sandbox-cli-batch-container-detection/) Switches to the new Environment class for determining sandbox and CLI container status, which can now come from environment variables in addition to the hostname. [https://github.com/Automattic/vip-go-mu-plugins/pull/2042](https://github.com/Automattic/vip-go-mu-plugins/pull/2042)