Blue Thessia (v1.9.2)

Geth v1.9.2 is a small maintenance release. It introduces some minor features, fixes some minor bugs and starts to lay the groundwork for the Istanbul hard fork.

Features added:

• Rework client tracking for light servers to better prioritize requests, making it fairer for everyone (#19745).
• Avoid retrieving full blocks for GraphQL queries on light clients if the query relies on headers (#19886).
• Support closing a simulated backends, avoiding a goroutine leak during log running tests (#19902).
• Support eth_call overriding chain state before execution, see API docs for details (#19917).
• Replace all user facing passphrase labels with password to avoid confusion (#19932).

Bugs fixed:

• Fix an RPC annoyance where inclusion info for pending transactions was 0, not null (#19901).
• Fix an RPC regression from v1.9.1 where the block size was not hex encoded (#19885).
• Fix the builder to extract commit hashes from detached git branches too (#18315).
• Fix storage trie value encoding when running geth dump (#19943).
• Fix console output coloring for Clef on Windows (#19889).

Istanbul changes (progress tracker):

• Refactor the internal chain configuration to allow enabling EIPs individually in tests (#19735).
• Implement EIP-1884: Repricing for trie-size-dependent opcodes (#19743).
• Implement EIP-1108: Reduce alt_bn128 precompile gas costs (#19904).
• Implement EIP-1344: ChainID opcode (#19921).

For a full rundown of the changes please consult the Geth 1.9.2 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.
• Ubuntu packages in our Launchpad PPA repository.
• OSX packages in our Homebrew Tap repository.