Geth v1.10.21 released today - merge configured on Goerli testnet

Geth v1.10.21 is a maintenance release, adding built-in configuration for the merge fork on the Goerli testnet and the mergeNetsplitBlock for the Sepolia testnet.

Specifically, this release

• defines a terminal total difficulty for Goerli as 10_790_000 (#25324) and

• defines the mergeNetsplitBlock as 1735371 for Sepolia. (#25372)

Command changes

• The --netrestrict option is now also applied for discv5. (#25304)

• DNS discovery is now enabled for the Sepolia testnet. (#25288)

• puppeth can no longer deploy parity and pyethapp because these clients are unmaintained. (#25329)

• abigen now has a workaround for parameter names which are also Go keywords. (#25307)

• A few minor regressions in geth CLI argument handling are fixed. (#25234)

RPC API changes

• In block-based RPC methods like eth_getBlockByNumber, the safe block specifier can now be used to refer to the "safe" block post-merge. (#25165)

• The baseFee can now be overridden in block tracing. (#25219)

• RPC methods returning transaction objects now return the chainId for legacy transactions. (#25244)

• In eth_sendTransaction, the chainId parameter now verified even for legacy transactions. (#25157)

• eth_call, eth_estimateGas no longer add tx fees to the coinbase account. (#25214)

• A new built-in tracer, revertReasonTracer, has been added. (#25265)

Merge changes

• The engine API can no longer perform block insertion while the client is snap-syncing. (#25210)

• When trying to set bad blocks retrieved via sync as canon, the API now returns INVALID. (#25190)

• The engine API endpoint ('authrpc') is now enabled by default. (#25152, #25394)

• Several other engine API bugs found during #TestingTheMerge are fixed. (#25230, #25136, #25236)

Go Library Changes

• The snap sync implementation has been updated in preparation for 'path-based state storage'. (#24898)

• The HTTP RPC server will no longer hang on shutdown even with very busy connections. (#25258)

• Package signer/core/apitypes now provides a function to calculate the EIP-712 typed data hash. (#25283)

Build changes

• We have reverted to an older version of goleveldb because recent versions have buggy compaction and manifest handling. (#25413)

• This release is built with Go 1.18.4 (#25247, #25293)

• Release tarballs have proper directory timestamps. (#25290)

For a full rundown of the changes please consult the Geth 1.10.21 release milestone

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