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canton-network-docs/Release NotesWallet SDK

0.17.0

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0.17.0

Released on November 14th, 2025
  • Wallet SDK has been updated to support 0.5.1 & Canton 3.4.7
previous versions are mostly compatible, however you might run into a previous safeguard against earlier versions of canton 3.4.X where external party onboarding was not supported.
  • wallet.localhost changed to localhost
with newer versions of splice we can now remove the need for adding parameters for /etc/hosts and use localhost directly for the examples.
  • Improved utxo selection when no utxos was provided
previously when perform a transfer and not providing utxos (as an empty array), then the sdk would automatically select all utxos to perform the transfer. This had various problems like adding more than 100 utxos or utxos not having enough funds, this has also been improved with better error messaging.
  • Better automation around token metadata
the token standard controller have two new methods: getInstrumentById & listInstruments, these uses the transferRegistryUrl provided to fetch relevant data from the original source making non-CC token integration more seamless. Likewise in certain cases the instrumentAdmin has been made optional since we can use the above to fetch these.
  • test improvements of snippets
test snippets used as part of the wallet integration guide was previously considered theoretical examples, the entire suite has been upgraded and now each snippets have been tested against a running validator to ensure it is correct in its completeness. This means we also had to change some of the values from using example naming the actual naming.
  • buy member traffic
new method added that allows the purchase of traffic for a specific validator using an external party. 

const [buyTrafficCommand, buyTrafficDisclosedContracts] =
    await sdk.tokenStandard!.buyMemberTraffic(
        sender?.partyId!, // buying party
        200000, // cc amount to purchase traffic for
        participantId!, // receiving participants
        [], // input utxos, if none is provided it will use smart utxo selection
        0 // migrationID, beware that this will be 0 for localnet,devnet & testnet while mainnet will have 3
    )

await sdk.userLedger?.prepareSignExecuteAndWaitFor(
    buyTrafficCommand,
    keyPairSender.privateKey,
    v4(),
    buyTrafficDisclosedContracts
)
  • made decodeTopologyTransaction static
toDecodedTopologyTransaction introduced in previous version has been moved as a static method on the ledgerController, this is primarily so it can be used in offline mode.
  • supported executeAs individual rights for reading
executeAs also grants read access, however this was not including in the filtering (this has no impact with executeAsAnyParty).