v1.7.0-beta.1 is the Baklava-only release of v1.7.0. After testing on the Baklava testnet, it will be followed by v1.7.0-stable which will be intended for both Mainnet and Alfajores networks.
Istanbul consensus fork #1937
Implements a consensus fork that is determined by a specific block number. From that sequence on, the messages Preprepare and RoundChange will be no longer used, and PreprepareV2 and RoundChangeV2 will be used instead. This is only relevant for validator nodes. This release already has set the Baklava activation for Block # 13612887.
RPC block representation changed #1957
An additional two fields have been added to the block representation returned by the RPC api, they are:
gasLimitbaseFeePerGas
Both fields previously existed as parameters of the system held in contract state. The reason for this change is to improve compatibility with existing ethereum tooling specifically Ethers.js which crashes if the gasLimit is not present on a block and is unable to send EIP-1559 transactions if baseFeePerGas is not present.
Note that the internal block representation has not been modified so these new fields should not be taken into account in block hashing or signing operations. Since these fields are not part of the internal block representation they need to be fetched from state when the RPC call is made, if the state for these fields is missing then they will not be present on the block response. Non archive full nodes retain state for only the last 128 blocks, so when interacting with a non archive full node blocks more than 128 below the head block or blocks older than about 10 minutes will not have these fields present. If you require these fields on all blocks then you will need to make your RPC requests to an archive node.
A new flag has been added which allows disabling the addition of the new fields as a measure to help ease the transition to the new RPC block representation, the flag will likely be removed in a future release.
Other changes
-
Enable Snap Sync (Note: to be able to use this sync, it requires to have nodes with this same version in the network) #1962
-
Various fixes in mycelo
Docker Images
Celo blockchain client: us.gcr.io/celo-org/geth:1.7.0-beta.1
Celo blockchain client and associated tools: us.gcr.io/celo-org/geth-all:1.7.0-beta.1