Changes overview

• TAPv1 receipt aggregation functionality is maintained
• Adds endpoint for TAPv2 receipt aggregation
• Receipts cannot be mixed
  • TAPv1 receipts aggregate into TAPv1 vouchers
  • TAPv2 receipts aggregate into TAPv2 vouchers

Upgrade procedure

• Upgrade to version: see Graph Horizon: environment resources
• Update configuration
  • Removed: TAP_DOMAIN_NAME, TAP_DOMAIN_VERSION
    • These are now inferred from tap_core crate.
  • Added:
    • TAP_DOMAIN_VERIFYING_CONTRACT_V2: this is GraphTally Collector address, for value see Graph Horizon: environment resources
  • Ensure
    • TAP_PRIVATE_KEY contains the private key for the gateway’s signer account, not the sender/payer