generated: '2026-07-18'
method: searched
source: https://developer.bill.com/docs/why-upgrade-v3
docs: https://developer.bill.com/docs/environmental-differences
description: >-
  Lifecycle posture for the Divvy (BILL Spend & Expense) API on the BILL
  developer platform. BILL runs a major v3 API that supersedes the legacy v2
  API, and maintains a distinct sandbox environment separate from production.
versioning:
  scheme: uri-path major version
  current: v3
  previous: v2
  migration_docs: https://developer.bill.com/docs/why-upgrade-v3
  docs: https://developer.bill.com/docs/bill-v3-api-get-started
deprecation:
  policy_url: https://developer.bill.com/docs/why-upgrade-v3
  note: BILL v2 API is the prior major version; v3 is the current recommended version.
environments:
  sandbox: https://developer.bill.com/docs/api-sandbox-sign-up
  environment_differences: https://developer.bill.com/docs/environmental-differences
  detail: sandbox/divvy-sandbox.yml