Netlify is introducing a new environment variable experience that includes stronger encryption, scopes to limit data availability, and contextual values for better flexibility. This improved system will be available on all sites starting February 20, 2023, with migration for existing teams beginning in early March, and Enterprise plan customers able to defer the change if needed. The update aims to provide better security and flexibility for developers, with minimal disruption to users, who can access their variables through Site Settings or Netlify CLI. While some changes are required, such as switching to new endpoints, most users won't need to take any action, and support will be available in case of issues.