@bitcoincashnode 17 November 2021

Bitcoin Cash Upgrade 2022

November 15, 2021 Bitcoin Cash Upgrade 2022 On May 15th, 2022, Bitcoin Cash will undergo a technical upgrade to further expand its virtual machine (VM) contracting capabilities. The upgrade will enable a variety of new financial products and services by: **Supporting arithmetic operations on significantly larger numbers.** An expanded arithmetic range will allow contracts to manage very large balances with full precision, enabling contract-based treasuries and improving the efficiency of existing contract designs. Adding new operations, including **native introspection operations**. These new operations will enable the development of **far more secure wallets, efficient recurring payments, and more**. This upgrade has been discussed, developed and reviewed by a large consortium of companies, development teams, and independent developers - including all existing node software teams. As of November 15, 2021, deliberation has concluded without contest, and **the upgrade will activate on May 15, 2022 without a network split**. The Bitcoin Cash Node (BCHN) software will include support for the 2022 Bitcoin Cash upgrade in its upcoming release v24.0.0. Upgrade Schedule Sep 15, 2021 - The upgrade was activated on a public test network. Nov 15, 2021 - BCHN commits to upgrade scope and a November release of v24.0.0 Feb 15, 2022 - All ecosystem software is expected to have a stable release supporting the upgrade. May 15, 2022 - Upgrade is activated on the main network. Upgrade Preparation **For Bitcoin Cash users, this upgrade requires no preparation; payments can safely be made and accepted throughout activation.** Existing wallet software will continue to function without upgrades. Miners, exchanges and other node operators are advised to **upgrade node software before May 15, 2022 to avoid service disruptions.** The upgrade requires no downtime, and operations can proceed normally. Technical Details The May 15, 2022 upgrade includes the following consensus changes: CHIP-2021-03: Bigger Script Integers (Discussion) https://gitlab.com/GeneralProtocols/research/chips/-/blob/master/CHIP-2021-02-Bigger-Script-Integers.md https://bitcoincashresearch.org/t/chip-2021-03-bigger-script-integers/39 CHIP-2021-02: Native Introspection Opcodes (Discussion) https://gitlab.com/GeneralProtocols/research/chips/-/blob/master/CHIP-2021-02-Add-Native-Introspection-Opcodes.md https://bitcoincashresearch.org/t/chip-2021-02-add-native-introspection-opcodes/307 For more BCHN-related information about the May 15, 2021 network upgrade, please visit https://upgradespecs.bitcoincashnode.org/2022-05-15-upgrade/ Sincerely, The Bitcoin Cash Node team.