Mount Milgrom (v1.9.17)

Geth v1.9.17 is a small maintenance release (trying to get back onto the biweekly schedule), though it does pack a few punches as well!

• Enable historical garbage collection for light clients (#19570).
• Apply --rpc.txfeecap to a few missed endpoints (#21231).
• Drastically reduce allocations in the transaction pool (#21328).
• Drastically reduce allocations on certain EVM opcodes (#21222).
• Raise the default gas limit in --dev mode to 12 million (#21323).
• Fix ethstats reconnect issue and fix constant Görli drops (#21347).
• Fix gas estimation if balance / price overflown uint64 (#21346).

For a full rundown of the changes please consult the Geth 1.9.17 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.