Flexible Polymer Casing (v1.17.4)

This is a maintenance release with accumulated bug fixes and improvements, and is recommended for all users. It also continues the implementation work for the upcoming Amsterdam hardfork. One thing worth highlighting: Clef has been removed. The standalone clef signer has moved to https://github.com/ethereum/clef ( #35097 ). Fork Implementation (Amsterdam) EIP-7928: Block-Level Access Lists: the…