This is a maintenance release with accumulated bug fixes and improvements, and is recommended for all users. It continues the implementation work for the upcoming Amsterdam hardfork.

A few things worth highlighting:

• The default GOGC has changed from 20 to 50, trading a higher memory peak for less GC overhead. Set --gogc=20 to keep the old behavior.
• Pebble v2 is now supported as a key-value store backend. Pebble v2 is used when Geth is bootstrapped from scratch, and falls back to Pebble v1 for a pre-existing database. Run geth db pebble-upgrade to explicitly upgrade a legacy Pebble v1 database to v2.

Fork Implementation

• Several Amsterdam EIPs have been implemented or updated:
  • EIP-2780: Resource-based intrinsic transaction gas (#35212, #35318)
  • EIP-8037: State creation gas cost increase (#35173, #35318, #35301, #35342, #35279)
  • EIP-8038: State-access gas cost update (#35216)
  • EIP-8246: Remove SELFDESTRUCT burn (#35219)
  • EIP-8282: Builder execution requests (#35175, #35341)
  • EIP-7997: Deterministic factory contract (#35223, #35285)
  • EIP-7954: Increase maximum contract size (#35217)
  • EIP-7928: Block-level access lists (#35260, #35281, #35261, #35348, #35279)
• Improve Amsterdam fork test coverage (#35364)
• Introduce the --override.amsterdam flag (#35213)
• Remove named hardforks from the BPO schedule (#35029)
• Introduce the Bogota fork in the chain configuration (#34057)

Core

• Introduce a sparse blobpool to reduce blob transaction pool memory usage (#34047)
• Migrate legacy blobpool limbo entries to the new cell-based sidecar format on startup (#35209)
• Drop support for v0 blob sidecars in blobpool (#35191)
• Inline gas deduction to fix a performance regression (#35203)
• Fix eth/71 block-access-list empty marker decoding which wrongly disconnected peers (#35286)
• Disable snap sync mode once the pivot block is committed (#35402, #35405)
• Speed up debug_setHead and reject unrecoverable targets (#35252)
• Fix snap sync failing to backfill blocks with missing canonical-hash mappings (#35190)
• Reuse the chain's JUMPDEST cache in payload building (#35378)
• Support Pebble v2 as the database backend (#34009)
• Support .ere files in the era store (#34978)
• Introduce the trie.UpdateBatch API (#32448)
• Fix freezer truncation error on newly-added empty tables after unclean shutdown (#35258)
• Improve state recoverability reporting by considering sync status (#35400)
• Fix account prefetching for absent accounts (#35256)
• Various snap v2 fixes (#35321, #35323)
• Optimize block validation (#35403)
• Various allocation improvements (#35234, #35237, #35232)
• Continue binary trie development (#34772)
• Fix tx size calculation (#35406)

Networking

• Protect high-value peers from random dropping based on transaction-inclusion statistics (#34702)
• Keep invalid and unreachable nodes out of DNS discovery trees (#35312)
• Support a dual-stack discovery listener in devp2p, with several related fixes (#35220, #35298, #35243, #35206)

RPC

• Introduce the --rpc.http-body-limit flag to configure the maximum HTTP request body size (#35224)
• Reject gasPrice when combined with an authorizationList (#35320)
• Reject a block parameter with neither a number nor a hash (#35271)
• Match the authorization scheme case-insensitively (#35022)

Tracing

• Respect the configured log limit in the struct logger (#35349)
• Emit tracing frames in the EIP-2780 manner (#35396)
• Include the log index in ERC-7562 tracer output (#35200)
• Stop incorrectly capturing callcode transfers in the log tracer (#35248)

Engine API

• Pass TargetGasLimit via the engine API (#35372)
• Make the maximum reorg depth configurable (#35335, #35373, #35391)
• Return block access lists from engine_getPayloadBodiesV2 (#35347)
• Cap miner-configured MaxBlobsPerBlock to the protocol limit (#35295)

Geth & Tooling

• Introduce a --gogc flag and bump the default GOGC to 50 (#35363, #34851)
• Write block-level access lists in geth export (#35369)
• Preserve metrics tag values containing = (#35168)
• Update eels tests to v20.0.0 (#35283)

Accounts & ABI

• Forward the blob fee cap to external signers (#35167)
• Introduce a GetABI() method on abigen v2 generated contract bindings (#35221)
• Fix abigen v1 bindings to handle deployment of library dependencies (#32164)

Build

• Update the ckzg dependency (#35336)
• Upgrade the -dlgo bootstrap Go version to 1.25.12 (#35317)

For a full rundown of the changes please consult the Geth 1.17.5 release milestone.

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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