November 2020 Upgrade

ASERT Difficulty Adjustment Algorithm (aserti3-2d)

2020-NOV-15 Network Upgrade Specification

May 2020 Upgrade

2020-MAY-15 Network Upgrade Specification

Infrastructure Funding Plan Specification

2020-MAY-15 script SigChecks counting and limiting specification

OP_REVERSEBYTES Specification

November 2019 Upgrade

2019-NOV-15 Network Upgrade Specification

2019-NOV-15 minimal push and minimal number encoding rules

2019-NOV-15 Schnorr OP_CHECKMULTISIG specification

May 2019 Upgrade

2019-MAY-15 Segwit Recovery Specification

2019-MAY-15 Network Upgrade Specification

2019-MAY-15 Schnorr Signature specification

November 2018 Upgrade

2018 November 15 Network Upgrade Specification

OP_CHECKDATASIG and OP_CHECKDATASIGVERIFY Specification

May 2018 Upgrade

May 2018 Hardfork Specification

Restore disabled script opcodes, May 2018

January 2018 Upgrade

Address format for Bitcoin Cash

Block Spec for Bitcoin Cash ⚠️ out of date ⚠️

Transaction Spec for Bitcoin Cash ⚠️ out of date ⚠️

November 2017 Upgrade

November 13th Bitcoin Cash Hardfork Technical Details

August 2017 Upgrade

BCH JSON RPC Specification ⚠️ out of date ⚠️

UAHF Technical Specification

BUIP-HF Digest for replay protected signature verification across hard forks

UAHF Test Plan