go-ethereum v1.17.9

This release enables the Amsterdam fork 🦩 on the Hoodi testnet at block timestamp 1793036568 (Mon, 26 Oct 2026 17:42:48 UTC).

It also contains changes to the EVM to improve the performance significantly.

This release is recommended for all users running their nodes on the Hoodi testnet.

Geth

• Blsync now supports the Gloas beacon chain fork and had some bug fixes (#35956, #35385, #35957)
• When running an archive node, you can now configure the transaction index history using --history.transactions flag. (#35907)

Core

• Amsterdam fork is set to activate at block timestamp 1793036568. (#35974)
• EVM interpreter opcode dispatching became 16% faster due to a new inlined switch implementation. (#35638)
• Several fixes for database corruption on power failure (#35939, #35936)
• Bug fix in trie database related to concurrent state reading (#35978)
• RPC call concurrent with block processing could result in BAL corruption. (#35905)
• State history committing is moved to the background, making newPayload 2% faster. (#35949)
• Key-value database settings changed for improved write performance (#35691)
• Fixed log index under history pruning beyond the checkpoint (#35875)

Networking

• Fixed snap/2 restart issue by checking for pivot block reorg in the header chain (#35930, #35982)
• Added metrics to discovery listeners (#35673)
• Fixed mempool corruption with tip below base fee (#35988)

RPC

• eth_simulateV1 spec compliance fixes (#35841, #35842, #35953)
• eth_call and similar methods will reject fields which are not aligned with forks
• eth_fillTransaction always chooses AccessList transaction when accessList is provided by user. (#35969)
• eth_newFilter now accepts earliest in toBlock. (#35933)
• eth_sendTransaction rejects invalid yParity value in 7702 transactions. (#35761)
• In debug_traceTransaction, debug_traceCall, omit storage on halted SLOAD/SSTORE steps. (#35961)
• Pending block access was fixed on the Amsterdam fork transition block. (#35968)
• Historical RPC calls will reject transaction features which have not yet activated. (#35914, #35928)

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For a full rundown of the changes please consult the Geth 1.17.9 release milestone.

As with all our previous releases, you can find the:

• Pre-built binaries for all platforms on our downloads page.
• Docker images published under ethereum/client-go (use “stable” tag).
• Ubuntu packages in our Launchpad PPA repository.
• macOS packages in our Homebrew Tap repository.

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Source ethereum/go-ethereum · v1.17.9 · 2026-10-21 · upstream release

Mirrored verbatim for indexing. All rights belong to the upstream project.