In this release

This release includes the new and improved version of the Blockchain Updates extension. If you are not using the extension with your node, or if you prefer to continue using the previous version, you may skip this version.

• The new updates stream enhances StateUpdate messages with the before values (e.g. BalanceUpdate message has a new amount_before field which contains the address balance preceding update application).
• Additional TransactionMetadata is supplied for each transaction. This message contains resolved recipient addresses for transfers directed to aliases, function invocation details and some other data which can not be retrieved from the transaction itself.
• Rollback messages are enhanced with state updates and transaction IDs which are being reverted. These fields contains the data which helps consumers more easily handle rollbacks.
  For more information on the new extension, see documentation.

Update notes

Please note that this Blockchain Updates extension version is incompatible with the previous versions (consumers working with previous extension versions will not be able to connect to this version). You will need to re-generate client stubs from schemas version 1.2.11 to use the new stream. We will be updating our Mainnet pool to the new version on Monday, March 29th.

Please also note that updating your extension from previous versions requires re-importing blockchain. This requirement is caused by redesigned extension data storage which no longer stores blocks in its own LevelDB, using the ones stored by the node itself. This greatly reduces storage space requirement for this extension (by as much as raw blockchain size — almost 43GB for Mainnet as of height 2515000). The extension itself consumes 32GB of storage space, in addition to the node's 55GB.

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