Skip to content

Loop SDK – Release Notes

Release Resources

The release notes below highlight only the major updates. Refer to the links above for the complete changelog.

v0.12.2

  • Browser SDK: add provider.estimateGas(payload) so browser / WalletConnect dApps can inspect expected network gas before submission.
  • SDK: add optional deduplicationPeriod support to submitTransaction, submitAndWaitForTransaction, and transfer.
  • SDK: continue accepting caller-provided commandId on the transaction payload so integrators can safely retry the same logical command.
  • Server SDK: fix the node-forge import path used by the server signer.

v0.12.1

  • Server SDK: add estimateGas(payload) so integrators can inspect expected network gas before submitting a transaction.

v0.12.0

  • Upgrade required for Server SDK: integrators should update to @fivenorth/loop-sdk@0.12.0 or later to support the new after-execution network gas flow.
  • Server SDK transactions now use an after-execution network gas model. If a previous transaction created unpaid network gas, the next transaction attempt may fail with PaymentRequiredError.
  • Add checkDueGas(trackingId?) and payGas(trackingId) helpers so integrators can check for pending network gas before submitting a transaction and pay it first if present.
  • Surface 402 Payment Required as PaymentRequiredError as a fallback when unpaid network gas is detected during submission.

v0.11.2

  • SDK: stop auto-closing request-signing popup/tab on request completion (wallet UI controls close behavior).
  • SDK: include wallet reject message and code in RejectRequestError.

v0.11.1

  • SDK: fix server-side SDK to not bundling and just compile TS -> JS

v0.11.0

  • SDK: add server-side signing entrypoint. Backend authenticates with the user's private key, prepares a transaction, signs the returned hash, and submits without a wallet popup (headless flow).
  • Demo: add server demo (demo/server.ts) showing end-to-end headless signing.
  • Breaking: TransactionPayload no longer includes execution_mode or estimate_traffic. Use submitTransaction options (executionMode, estimateTraffic) instead.
  • Docs: clarify server SDK custody requirements and add headless usage examples.

v0.10.0

  • Add memo to the transfer helper payload and store it as transfer metadata.
  • Add estimateTraffic option to return estimated traffic in submit responses.
  • Docs: add installed DAR versions list for Canton nodes.

v0.9.0

  • Add execute-and-wait connect execution path (selectable via options) that returns transaction results or failures immediately for dapp integrations.

v0.8.0

  • onTransactionUpdate now returns update_id and update_data in the update payload. update_data is the ledger transaction tree (includes eventsById, workflowId, effectiveAt, etc.).

v0.7.6

  • Add getConnectUrl method to get link to wallet connect.

v0.7.5

  • Fix not able to re-connect when aborting a connection half way without complete the handshake.

v0.7.4

  • Improve style of the Loop connect modal.
  • Fix bug connect modal not showing up when calling connect again after hiding it and resume the connect flow.

v0.7.3

  • Add autoConnect and logout methods to enhance user experience on auto login on page load and control wallet logout flow

v0.7.2

  • Expose has_preapproval, has_merge_delegation and usdc_bridge_access to account object for dapp to check and ensure an account is setup to avoid UTXO size growing up.
  • Add a new method getAccount on provider to allow dapp to refresh these status.

v0.7.1

  • Custom wallet prompt message: pass message to transactions to show dApp-provided text in the wallet UI.
  • Add optional requestSigningMode (defaults to 'popup') to auto-open wallet dashboard (popup/tab) for signing/transaction requests and auto-close the popup when the wallet responds.
  • Add internal request lifecycle hooks on Provider to allow the SDK core to react to signing and transaction requests.

v0.7.0

  • Auto-reconnect websocket before sending requests to reduce Not connected errors after idle timeouts.
  • Add USDC withdraw helper: wallet.extension.usdcBridge.withdrawalUSDCxToEthereum (with withdraw alias), move USDC types/logic under the extension, and update the demo helper UI.

v0.6.5

  • Adjust HANDSHAKE_REJECT behavior so popup closing is fully controlled by the Wallet Connect UI.

v0.6.4

  • Added per-transfer requestTimeout option (defaults to 5 minutes), exported DEFAULT_REQUEST_TIMEOUT_MS, and updated demo UI to accept a timeout value.

v0.6.3

  • Added embedded CodePen demo to the docs under the Demo section for interactive examples.

v0.6.2

  • Version bump release; package metadata updated to 0.6.2.

v0.6.1

  • Increased wallet request/transaction timeout to 5 minutes.
  • Display instrument admin info when fetching holdings.
  • Docs moved under the loop-sdk package directory.

v0.6.0

  • Added loop.wallet.transfer helper that builds and submits transfers (optional instrument admin/id overrides).
  • Demo updated with transfer UI fields.

v0.5.0

  • Added id/class to the overlay container and wrapped QR/link in a content div for easier styling/hooks.

v0.4.0

  • BREAKING: openMode and redirectUrl now live under the options object in loop.init().
  • Added email to verifySession() response by extending the Account return type.
  • Added UUID polyfill fallback for environments without crypto.randomUUID.

v0.3.0

  • Added popup-based wallet connect flow and auto-close after acceptance.

v0.2.1

  • Cleared invalid cached loop_connect session when ticket is missing/expired to prevent stale reconnect errors.

v0.2.0

  • Added email to handshake_accept payload and exposed provider.email to dApps.