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BUIP094: BCH November upgrade - Re-enable Op Codes
Proposer: Andrew Clifford (@solex)
Submitted on: 2018-08-14
Status: passed

Motivation

Bitcoin Cash is advancing through decentralized development. Perhaps
this was easier early-on, but now the dust has settled from the fork and
a year has passed, there are many different voices pushing and pulling
development priorities. The upcoming 15 November 2018 general upgrade is
a major event, hence it would help if Bitcoin Unlimited, as an
organization, had an official position on the major elements of the
upgrade. This position is determined by the membership.

Objective

The purpose of the BUIP is to determine whether the BU membership
supports re-enabling the following op codes for the scheduled November
upgrade (this is a forking change).

Summary of Proposed Changes

Re-enabling op Codes:

  • OP_MUL
  • OP_LSHIFT
  • OP_RSHIFT
  • OP_INVERT

For further information, see
https://www.yours.org/content/use-cases-for-re-enabled-op-codes-8b150b6a0deb

Budget

N/A

Impact

BU does not desire unintended forks in the BCH blockchain, so the BU
client will remain compatible with the final specification of the
November upgrade.