TL;DR: The 4.5.0, 4.5.1, and 4.5.1-1
zcashd nodes will attain Finish of Service on or about January tenth, 2022. Previous to that point, miners should improve to 4.6.0-1 and all different testnet and mainnet nodes ought to improve to both 4.6.0 or 4.6.0-1.
getblocktemplate regression repair
We added assist for the NU5 consensus guidelines in v4.5.0, which alters the block header to comprise a
hashBlockCommitments worth as an alternative of the chain historical past root. Nevertheless, the output of
getblocktemplate wasn’t returning this worth; as soon as NU5 activated, the
blockcommitmentshash subject was being set to “null” (all-zeroes).
In v4.6.0 we added full NU5 assist to
getblocktemplate, by including a
defaultroots subject that gave default values for
hashBlockCommitments and the parts required to derive it. Nevertheless, in doing so we launched a regression within the (now-deprecated) legacy fields, the place previous to NU5 activation they contained nonsense.
This launch fixes the output of
getblocktemplate to have the meant semantics for all fields:
defaultrootsat the moment are omitted from block templates for heights earlier than NU5 activation.
- The legacy fields now all the time comprise the default worth to be positioned into the block header (regaining their earlier semantics).