Changelog

2026-09 — Current documented release

• Established the stable server integration endpoints POST /v1/invoices and GET /v1/invoices/:invoiceId with project secret-key authentication.
• Documented webhook protocol v2, including signed headers, raw-body HMAC input, timestamp freshness, retries, and event deduplication.
• Documented attribution-v3 exact-amount semantics: one exact transfer, permanent amount reservation, and no partial accumulation.
• Added Projects, integration readiness, account-level billing/treasury, and referral program documentation.
• Clarified the currently deployed TRON USDT product scope and Mainnet/Shasta isolation.

Future entries will call out changes to API fields, webhook signing or payloads, invoice matching, enabled networks/assets, migration steps, and breaking behavior. No undocumented historical releases are reconstructed here.