Attention! This release is for stagenet only! Not for mainnet/testnet.

In this release

Protocol Enhancements

• dApp-to-dApp invocation. A dApp callable function can invoke a callable function of another dApp, or another callable function of the same dApp, or even itself. All invoked functions are executed within a single Invoke Script transaction. The total complexity is limited. More about dApp-to-dApp invocation
• Continued сomputations.
  • Added support for dApp scripts with complexity over 4000. The execution of such a script is split into several stages. The first stage of calculations is performed within the Invoke Script transaction. The further stages are performed within Continuation transactions. More about continued сomputations
  • Implemented the new transaction type: Continuation. A block generator creates the Continuation transaction if there is an incomplete calculation sequence. A user cannot send a Continuation transaction.
  • Added version 3 for the Invoke Script transaction that can invoke a script with complexity over 4000.

Ride

• Issued version 5 of the Ride Standard library.

• Added the Invoke function for dApp-to-dApp invocation.

• Added strict variables that are evaluated before the next expression to ensure executing callable functions and applying their actions in the right order.

• Modified the callable function result by adding a return value.

• Added script actions that the callable function can perform:

  • Lease — leases WAVES.
  • LeaseCancel — cancels a specified lease.

  Using these actions, you can change the amount of the lease, in particular, withdraw a part of the leased funds. If you cancel a lease for a larger amount and create a new lease for a smaller amount with the same recipient in the same script invocation, the recipient's generating balance decreases by the difference. Otherwise, if you send two separate transactions: a Lease Cancel transaction and a Lease transaction, they can be added to a different blocks and therefore generating balance decreases by the amount of the canceled lease immediately and increases by the amount of the new lease after 1000 blocks.

• Added the function calculateLeaseId that calculates ID of the lease formed by the Lease structure.

• Added the following account data storage functions that allow the dApp script to read entries of its own data storage at any stage of the calculations:

  • getBinary(key: String): ByteVector|Unit
  • getBinaryValue(key: String): ByteVector
  • getBoolean(key: String): Boolean|Unit
  • getBooleanValue(key: String): Boolean
  • getInteger(key: String): Int|Unit
  • getIntegerValue(key: String): Int
  • getString(key: String): String|Unit
  • getStringValue(key: String): String

• Added an arbitrary data type — Any.

Node REST API

Breaking Changes

• Added the new transaction type: Continuation.

• A lease can be created both as a result of a Lease transaction and as a result of an Invoke Script transaction via a Lease script action. Therefore, the response of the following endpoints has been changed:

  • In the response of /transactions/address/{address}/limit/{limit} and /transactions/info/{id} endpoints for Lease Cancel transaction, the lease structure now contains lease parameters instead of Lease transaction fields.
  • /leasing/active/{address} returns an array of structures containing lease parameters instead of array of Lease transactions.
  Format

  "lease":
     {
       "leaseId": "4AZU8XPATw3QTX3BLyyc1iAZeftSxs7MUcZaXgprnzjk",
       "originTransactionId": "4AZU8XPATw3QTX3BLyyc1iAZeftSxs7MUcZaXgprnzjk",
       "sender": "3PC9BfRwJWWiw9AREE2B3eWzCks3CYtg4yo",
       "recipient": "3PMj3yGPBEa1Sx9X4TSBFeJCMMaE3wvKR4N",
       "amount": 1000000000000,
       "height": 2253315
     }

Semantic Changes

• For Invoke Script transaction version 3 the fields extraFeePerStep and continuationtransactionIds and the script_execution_in_progress value for the applicationStatus field added to the output of the endpoints providing transaction info.

• dApp-to-dApp invocation results are added as the invokes array to the stateChanges structure returned by the following endpoints:

  • /transactions/info/{id}
  • /transactions/address/{address}/limit/{limit}

  Each element of invokes array, in turn, also contains stateChanges.

  Format

  "stateChanges": {
    "data": [],
    "transfers": [],
    "issues": [],
    "reissues": [],
    "burns": [],
    "invokes": [
      {
        "dApp": "3PC9BfRwJWWiw9AREE2B3eWzCks3CYtg4yo",
        "payment": [
          {
            "amount": 50000000,
            "assetId": "DG2xFkPdDwKUoBkzGAhQtLpSGzfXLiCYPEzeKH2Ad24p"
          }
        ],
        "call": {
          "function": "swapNeutrinoToWaves",
          "args": [
            {
              "type": "string",
              "value": "EUR"
            },
            {
              "type": "integer",
              "value": 843699
            },
            {
              "type": "binary",
              "value": "base64:OK+armP11YmAyoQOwl8jLDLi2dK2sRc1Ue2QzZX1wgRmwGASLhllv1iKg2fRKS8cAlSDrfMYPb6374WMC9gFgA=="
            }
          ]
         },
        "stateChanges": {
           "data": [],
           "transfers": [],
           "issues": [],
           "reissues": [],
           "burns": [],
           "sponsorFees": [],
           "invokes": []
         }
      }
     ]
  }

• Results of the Lease and LeaseCancel script actions are added to the The stateChanges structure.

  Format

  "stateChanges": {
     "leases": [
       {
         "leaseId": "5fmWxmtrqiMp7pQjkCZG96KhctFHm9rJkMbq2QbveAHR",
         "recipient": "3PLosK1gb6GpN5vV7ZyiCdwRWizpy2H31KR",
         "amount": 500000
       }
     ],
     "leaseCancels": [
        {
           "leaseId": "4iWxWZK9VMZMh98MqrkE8SQLm6K9sgxZdL4STW8CZBbX"
        }
     ]
  }

• Results of Lease and LeaseCancel script actions are also added to the trace structure returned by the following endpoints:

  • /transactions/broadcast
  • /debug/validate
  Format

  "trace": [
     {
        "id": "3MosFNQAFGskNDnYzRBgMbfod6xXPdG96ME",
        "type": "dApp",
        "vars": [
           {
              "name": "amount",
              "type": "integer",
              "value": 12345
           }
       ],
       "result": {
           "leases": [
              {
                 "leaseId": "5fmWxmtrqiMp7pQjkCZG96KhctFHm9rJkMbq2QbveAHR",
                 "recipient": "3PLosK1gb6GpN5vV7ZyiCdwRWizpy2H31KR",
                 "amount": 500000
              }
           ],
           "leaseCancels": [
              {
                 "leaseId": "4iWxWZK9VMZMh98MqrkE8SQLm6K9sgxZdL4STW8CZBbX"
              }
           ]
        }
     }
  ]

SHA256 Checksums

69617f5ab0516957a4b75c3e59bbd7ed7f457418fe328d70becc0214ced80e57  grpc-server-stagenet-1.3.0.tgz
ae9c994f1a3adfab87b68e8ba2e406fb1292cc06edd0d0888975ea6b4ea93663  grpc-server-stagenet_1.3.0_all.deb
8dba1fc8b4cca59ebae68b46b2ad4e0ff471a2e7b2fd6d0bbf155fe8e66c6e8e  waves-all-1.3.0.jar
ef2f3e1de0af3927809d9d74970fb634c0d42000166545e9560d7c3b28e1d515  waves-stagenet_1.3.0_all.deb