According to official sources, Sui mainnet has now been upgraded to version V1.22.0, and the Sui protocol has been upgraded to version 42. The upgrade includes providing more accurate rounding calculations in the Deepbook accessor function (read-only), adding support for serialize-signed-transaction and serialize-unsigned-transaction flags, fixing an error where the sui client verify-bytecode-meter incorrectly returns the tick used by the last function to be verified as the tick used by the last module to be verified, and enabling EC (elliptic curve) operations in Move.
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