Table of Contents
The goal of the Cash Improvement Proposal (CHIP) process is to coordinate upgrades to Bitcoin Cash without a central authority by developing proposals in a collaborative, public process.
CHIP maintainers are expected to actively seek out stakeholders and demonstrate widespread ecosystem approval.
This includes approval from node and virtual machine implementations, wallets, and other open source software projects, educational institutions and community initiatives, and industry actors like exchanges, miners, services, and other businesses.
Standard Approval Request Template
Subject: Nov 14 deadline: 2025 BCH upgrade approval
Hello,
This is a formal request for approval from {{Organization}} regarding the May 2025 upgrade of Bitcoin Cash (BCH).
"CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits" and "CHIP-2024-07 BigInt: High-Precision Arithmetic for Bitcoin Cash" have achieved the Cash Improvement Proposal (CHIP) milestones required to be locked in on November 15, 2024 and activated on May 15, 2025.
The CHIP contributors believe {{Organization}} is an important stakeholder in the Bitcoin Cash ecosystem. Please respond by 12:00 UTC on November 14, 2024; non-responses will be considered "Abstain (Neutral)".
Does {{Organization}} approve of activating "CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits" and "CHIP-2024-07 BigInt: High-Precision Arithmetic for Bitcoin Cash" in the May 2025 Upgrade to Bitcoin Cash (BCH)?
- Yes (Approve)
- No (Disapprove), or
- Abstain (Neutral)
Separate responses may also be given for each CHIP. To make a public statement explaining this decision, please provide it here (required for disapprovals):
For reference:
- VM Limits CHIP: https://github.com/bitjson/bch-vm-limits
- BigInt CHIP: https://github.com/bitjson/bch-bigint
Please let me know if you have any questions.
Thank you,
Jason Dreyzehner
VM Limits CHIP & BigInt CHIP Maintainer
Responses to this standard communication are recorded for all organizations that have been contacted. If an organization has not yet rendered an opinion, their response is marked as Pending. Stakeholders may update their response by either contacting the CHIP Maintainer or directly submitting a pull request.
Responses from open source node and Virtual Machine (VM) implementations that support Bitcoin Cash.
| Implementation | As of Version | Approve | Disapprove | Neutral |
|---|---|---|---|---|
| BCHD | v3.1.1 |
✅ | ||
| Bitcoin Cash Node | v3.1.1 |
✅ | ||
| Bitcoin Unlimited | v3.1.1 |
➖ | ||
| Bitcoin Verde | v3.1.1 |
✅ | ||
| Flowee | v3.1.1 |
❌ | ||
| Libauth | v3.1.1 |
✅ | ||
| Knuth | v3.1.1 |
✅ |
Responses from wallets that support Bitcoin Cash.
| Wallet | As of Version | Approve | Disapprove | Neutral |
|---|---|---|---|---|
| Amagi Wallet | v3.1.1 |
✅ | ||
| Atomic Wallet | v3.1.1 |
➖ | ||
bchwallet |
v3.1.1 |
✅ | ||
| Bitcoin.com Wallet | v3.1.1 |
✅ | ||
| BitPay Wallet | v3.1.1 |
➖ | ||
| Bitpie | v3.1.1 |
➖ | ||
| BlockParty Wallet | v3.1.1 |
➖ | ||
| Cashonize | v3.1.1 |
✅ | ||
| CashAddress.org | v3.1.1 |
✅ | ||
| Cashual Wallet | v3.1.1 |
✅ | ||
| Cake Wallet | v3.1.1 |
➖ | ||
| Coin Wallet | v3.1.1 |
➖ | ||
| CoinEx Wallet | v3.1.1 |
➖ | ||
| Coinomi | v3.1.1 |
➖ | ||
| Crypto.com DeFi Wallet | v3.1.1 |
➖ | ||
| Cwallet | v3.1.1 |
➖ | ||
| Edge | v3.1.1 |
➖ | ||
| Electron Cash | v3.1.1 |
➖ | ||
| Ellipal Wallet | v3.1.1 |
➖ | ||
| Exodus | v3.1.1 |
➖ | ||
| Flowee Pay | v3.1.1 |
❌ | ||
| FullStack.Cash | v3.1.1 |
➖ | ||
| Guarda | v3.1.1 |
➖ | ||
| imToken | v3.1.1 |
➖ | ||
| KeepKey | v3.1.1 |
➖ | ||
| Komodo Wallet | v3.1.1 |
➖ | ||
| Ledger | v3.1.1 |
➖ | ||
| Melis | v3.1.1 |
✅ | ||
| MetaMask | v3.1.1 |
➖ | ||
| Neutrino Wallet | v3.1.1 |
➖ | ||
| Opal Wallet | v3.1.1 |
✅ | ||
| Payperless | v3.1.1 |
➖ | ||
| Paytaca | v3.1.1 |
✅ | ||
| SafePal | v3.1.1 |
➖ | ||
| Satochip | v3.1.1 |
➖ | ||
| Selene Wallet | v3.1.1 |
✅ | ||
| Stack Wallet | v3.1.1 |
➖ | ||
| Tangem | v3.1.1 |
➖ | ||
| TotalSig | v3.1.1 |
➖ | ||
| Trezor | v3.1.1 |
➖ | ||
| Trust Wallet | v3.1.1 |
➖ | ||
| Trustee Plus | v3.1.1 |
➖ | ||
| Unstoppable Wallet | v3.1.1 |
➖ | ||
| Verde Wallet | v3.1.1 |
✅ | ||
| West Wallet | v3.1.1 |
➖ | ||
| XDEFI Wallet | v3.1.1 |
➖ | ||
| XO.cash | v3.1.1 |
✅ | ||
| Zapit | v3.1.1 |
✅ |
Responses from open source libraries, indexers, educational resources, and community initiatives.
Responses from exchanges, miners, services, and other businesses.
| Organization | As of Version | Approve | Disapprove | Neutral |
|---|---|---|---|---|
| 3xpl | v3.1.1 |
➖ | ||
| 58 Opals | v3.1.1 |
✅ | ||
| A Fifth of Gaming | v3.1.1 |
➖ | ||
| Alagoria | v3.1.1 |
➖ | ||
| Alfacoins | v3.1.1 |
➖ | ||
| Amagi Finance | v3.1.1 |
✅ | ||
| Antpool | v3.1.1 |
➖ | ||
| Anycoin Direct | v3.1.1 |
➖ | ||
| AnyHedge | v3.1.1 |
✅ | ||
| Aptissio | v3.1.1 |
✅ | ||
| APMEX | v3.1.1 |
➖ | ||
| Atani | v3.1.1 |
➖ | ||
| ArzPaya | v3.1.1 |
➖ | ||
| AscendEX | v3.1.1 |
➖ | ||
| Azbit | v3.1.1 |
➖ | ||
| Bake | v3.1.1 |
➖ | ||
| Ballet Global | v3.1.1 |
✅ | ||
| BasicSwap | v3.1.1 |
➖ | ||
| B2BinPay | v3.1.1 |
➖ | ||
| BCH BULL | v3.1.1 |
✅ | ||
| BCH Guru | v3.1.1 |
✅ | ||
| BCH.games | v3.1.1 |
✅ | ||
| bchportal.cash | v3.1.1 |
✅ | ||
| BenSwap | v3.1.1 |
➖ | ||
| BEQUANT | v3.1.1 |
➖ | ||
| Binance | v3.1.1 |
➖ | ||
| BiggestLab | v3.1.1 |
➖ | ||
| Bibox | v3.1.1 |
➖ | ||
| BingX | v3.1.1 |
➖ | ||
| BISON | v3.1.1 |
➖ | ||
| Bit.com | v3.1.1 |
➖ | ||
| Bitauth.com | v3.1.1 |
✅ | ||
| Bitbuy | v3.1.1 |
➖ | ||
| Bitbank | v3.1.1 |
➖ | ||
| BitCats Heroes Club | v3.1.1 |
✅ | ||
| Bitcoin.com | v3.1.1 |
✅ | ||
| Bitcoin.de | v3.1.1 |
➖ | ||
| BitcoinVN | v3.1.1 |
✅ | ||
| Bitcoin Group SE | v3.1.1 |
➖ | ||
| Bitcoin India | v3.1.1 |
➖ | ||
| Biconomy | v3.1.1 |
➖ | ||
| Bitdeer | v3.1.1 |
➖ | ||
| Bitexen | v3.1.1 |
➖ | ||
| BitFlyer | v3.1.1 |
➖ | ||
| Bitfinex | v3.1.1 |
➖ | ||
| BitGet | v3.1.1 |
➖ | ||
| BitGo | v3.1.1 |
➖ | ||
| BitGlobal | v3.1.1 |
➖ | ||
| Bitgree | v3.1.1 |
➖ | ||
| Bithumb | v3.1.1 |
➖ | ||
| BitIRA | v3.1.1 |
➖ | ||
| Bitjson.com | v3.1.1 |
✅ | ||
| Bitkub | v3.1.1 |
➖ | ||
| BitMart | v3.1.1 |
➖ | ||
| BitMEX | v3.1.1 |
➖ | ||
| BitOasis | v3.1.1 |
➖ | ||
| BitoPro | v3.1.1 |
➖ | ||
| Bitpanda | v3.1.1 |
➖ | ||
| BitPay | v3.1.1 |
➖ | ||
| Bitso | v3.1.1 |
➖ | ||
| Bitstamp | v3.1.1 |
➖ | ||
| Bitrue | v3.1.1 |
➖ | ||
| Bitvavo | v3.1.1 |
➖ | ||
| Blockchain Poker | v3.1.1 |
➖ | ||
| Blockchain.com | v3.1.1 |
➖ | ||
| Blockchair | v3.1.1 |
➖ | ||
| BlockNG | v3.1.1 |
➖ | ||
| Blockonomics | v3.1.1 |
✅ | ||
| BNS | v3.1.1 |
➖ | ||
| BTC Markets | v3.1.1 |
➖ | ||
| BTCBOX | v3.1.1 |
➖ | ||
| BTCC | v3.1.1 |
➖ | ||
| BTCPOP | v3.1.1 |
➖ | ||
| Buda.com | v3.1.1 |
➖ | ||
| Bullish | v3.1.1 |
➖ | ||
| Buy Hodl Sell | v3.1.1 |
✅ | ||
| BVOX | v3.1.1 |
➖ | ||
| Bybit | v3.1.1 |
➖ | ||
| BYDFi | v3.1.1 |
➖ | ||
| Cash-Ninjas | v3.1.1 |
✅ | ||
| Cashrain | v3.1.1 |
➖ | ||
| Cauldron | v3.1.1 |
✅ | ||
| CEX.IO | v3.1.1 |
➖ | ||
| Chaintip | v3.1.1 |
➖ | ||
| Changelly | v3.1.1 |
➖ | ||
| ChangeHero | v3.1.1 |
➖ | ||
| ChangeNOW | v3.1.1 |
➖ | ||
| CheapAir | v3.1.1 |
➖ | ||
| CheckBook.cash | v3.1.1 |
➖ | ||
| Choice | v3.1.1 |
➖ | ||
| Circle | v3.1.1 |
➖ | ||
| Clementine's Nightmare | v3.1.1 |
➖ | ||
| CloverPool | v3.1.1 |
➖ | ||
| Code Valley | v3.1.1 |
✅ | ||
| Coin ATM Radar | v3.1.1 |
➖ | ||
| Coin Dance | v3.1.1 |
➖ | ||
| Coinbase | v3.1.1 |
➖ | ||
| Coinbooth | v3.1.1 |
✅ | ||
| CoinCarp | v3.1.1 |
➖ | ||
| Coincheck | v3.1.1 |
➖ | ||
| CoinCodex | v3.1.1 |
➖ | ||
| CoinCola | v3.1.1 |
➖ | ||
| CoinEx | v3.1.1 |
➖ | ||
| CoinGate | v3.1.1 |
➖ | ||
| CoinGecko | v3.1.1 |
➖ | ||
| Coinhub | v3.1.1 |
➖ | ||
| Coinify | v3.1.1 |
➖ | ||
| CoinLedger | v3.1.1 |
➖ | ||
| CoinLoan | v3.1.1 |
➖ | ||
| Coinone | v3.1.1 |
➖ | ||
| Coinmama | v3.1.1 |
➖ | ||
| Coinmerce | v3.1.1 |
➖ | ||
| Coinmetro | v3.1.1 |
➖ | ||
| CoinNexus | v3.1.1 |
➖ | ||
| CoinPayments | v3.1.1 |
➖ | ||
| CoinRabbit | v3.1.1 |
➖ | ||
| CoinRemitter | v3.1.1 |
➖ | ||
| CoinSpot | v3.1.1 |
➖ | ||
| Coinsquare | v3.1.1 |
➖ | ||
| Coinstash | v3.1.1 |
➖ | ||
| CoinStats | v3.1.1 |
➖ | ||
| CoinSwitch | v3.1.1 |
➖ | ||
| CoinTracker | v3.1.1 |
➖ | ||
| CoinTracking | v3.1.1 |
➖ | ||
| CoinW | v3.1.1 |
➖ | ||
| CoinZoom | v3.1.1 |
➖ | ||
| Cointree | v3.1.1 |
➖ | ||
| Criptan | v3.1.1 |
➖ | ||
| Crypto.com | v3.1.1 |
➖ | ||
| CryptoCompare | v3.1.1 |
➖ | ||
| CryptoKnights.games | v3.1.1 |
➖ | ||
| Cryptomus | v3.1.1 |
➖ | ||
| CryptoR.AT | v3.1.1 |
➖ | ||
| CryptoTaxCalculator | v3.1.1 |
➖ | ||
| CryptoWoo | v3.1.1 |
➖ | ||
| Currency.com | v3.1.1 |
➖ | ||
| Daylight Freedom Foundation | v3.1.1 |
➖ | ||
| Deepcoin | v3.1.1 |
➖ | ||
| Deribit | v3.1.1 |
➖ | ||
| DigiFinex | v3.1.1 |
➖ | ||
| Digital Currency Group | v3.1.1 |
➖ | ||
| Digital Surge | v3.1.1 |
➖ | ||
| EasyBit | v3.1.1 |
➖ | ||
| Emirex | v3.1.1 |
➖ | ||
| eGifter | v3.1.1 |
➖ | ||
| eToro | v3.1.1 |
➖ | ||
| Emerald DAO | v3.1.1 |
✅ | ||
| EXMO | v3.1.1 |
➖ | ||
| F2Pool | v3.1.1 |
➖ | ||
| Fastex | v3.1.1 |
➖ | ||
| Fex Cash | v3.1.1 |
➖ | ||
| Foxbit | v3.1.1 |
➖ | ||
| FMFW.io | v3.1.1 |
➖ | ||
| Flexa | v3.1.1 |
➖ | ||
| Forward Financial | v3.1.1 |
✅ | ||
| Foundry | v3.1.1 |
➖ | ||
| FundMe.cash | v3.1.1 |
✅ | ||
| Gambling Apes Club | v3.1.1 |
✅ | ||
| Gate.io | v3.1.1 |
➖ | ||
| GateHub | v3.1.1 |
➖ | ||
| Guardarian | v3.1.1 |
➖ | ||
| Gemini | v3.1.1 |
➖ | ||
| General Protocols | v3.1.1 |
✅ | ||
| Goblins.cash | v3.1.1 |
➖ | ||
| GoCrypto | v3.1.1 |
➖ | ||
| Godex.io | v3.1.1 |
➖ | ||
| GoUrl.io | v3.1.1 |
✅ | ||
| Grayscale Investments | v3.1.1 |
➖ | ||
| Haveno | v3.1.1 |
➖ | ||
| HitBTC | v3.1.1 |
➖ | ||
| Hotcoin | v3.1.1 |
➖ | ||
| Houdini Swap | v3.1.1 |
➖ | ||
| HTX | v3.1.1 |
➖ | ||
| ICONOMI | v3.1.1 |
➖ | ||
| Independent Reserve | v3.1.1 |
➖ | ||
| INDODAX | v3.1.1 |
➖ | ||
| InstaCrypto | v3.1.1 |
➖ | ||
| IPFS-BCH | v3.1.1 |
✅ | ||
| Karsha Exchange | v3.1.1 |
➖ | ||
| Keys4Coins | v3.1.1 |
➖ | ||
| Koinly | v3.1.1 |
➖ | ||
| Korbit | v3.1.1 |
➖ | ||
| Kraken | v3.1.1 |
➖ | ||
| KuCoin | v3.1.1 |
➖ | ||
| Lamassu | v3.1.1 |
➖ | ||
| Launchpad IP | v3.1.1 |
➖ | ||
| LBank | v3.1.1 |
➖ | ||
| LetsExchange | v3.1.1 |
➖ | ||
| Life Labs HTMA | v3.1.1 |
✅ | ||
| Living Room of Satoshi | v3.1.1 |
➖ | ||
| LMAX Digital | v3.1.1 |
➖ | ||
| Luno | v3.1.1 |
➖ | ||
| Lykke | v3.1.1 |
➖ | ||
| Matrixport | v3.1.1 |
➖ | ||
| MAX Exchange | v3.1.1 |
➖ | ||
| Memo Technology, Inc. | v3.1.1 |
➖ | ||
| Menufy | v3.1.1 |
➖ | ||
| Mercado Bitcoin | v3.1.1 |
➖ | ||
| Mercuryo | v3.1.1 |
➖ | ||
| MERCATOX | v3.1.1 |
➖ | ||
| MEXC | v3.1.1 |
➖ | ||
| Mining-Dutch | v3.1.1 |
➖ | ||
| MistSwap | v3.1.1 |
➖ | ||
| MoonPay | v3.1.1 |
➖ | ||
| Moria | v3.1.1 |
✅ | ||
| Mudrex | v3.1.1 |
➖ | ||
| Mullvad | v3.1.1 |
➖ | ||
| N.exchange | v3.1.1 |
➖ | ||
| Namecheap | v3.1.1 |
➖ | ||
| Ndax | v3.1.1 |
➖ | ||
| Netcoins | v3.1.1 |
➖ | ||
| Newegg | v3.1.1 |
➖ | ||
| Newton | v3.1.1 |
➖ | ||
| Nexo | v3.1.1 |
➖ | ||
| nft.storage | v3.1.1 |
➖ | ||
| NFTRarity.cash | v3.1.1 |
➖ | ||
| NiceHash | v3.1.1 |
➖ | ||
| Noise.app | v3.1.1 |
✅ | ||
| Nominex | v3.1.1 |
➖ | ||
| NovaDAX | v3.1.1 |
➖ | ||
| NOWPayments | v3.1.1 |
➖ | ||
| OKX | v3.1.1 |
➖ | ||
| ONUS | v3.1.1 |
➖ | ||
| P2B | v3.1.1 |
➖ | ||
| Pagcripto | v3.1.1 |
➖ | ||
| Panmoni | v3.1.1 |
✅ | ||
| Paribu | v3.1.1 |
➖ | ||
| PassimPay | v3.1.1 |
➖ | ||
| Paxos | v3.1.1 |
➖ | ||
| Paybis | v3.1.1 |
➖ | ||
| PayPal | v3.1.1 |
➖ | ||
| Pepi | v3.1.1 |
✅ | ||
| Phemex | v3.1.1 |
➖ | ||
| Pionex | v3.1.1 |
➖ | ||
| Plisio | v3.1.1 |
➖ | ||
| Plus500 | v3.1.1 |
➖ | ||
| Poolin | v3.1.1 |
➖ | ||
| Poolside Puffers | v3.1.1 |
➖ | ||
| Poloniex | v3.1.1 |
➖ | ||
| PrimeXBT | v3.1.1 |
➖ | ||
| Prompt.Cash | v3.1.1 |
✅ | ||
| ProBit | v3.1.1 |
➖ | ||
| PROHASHING | v3.1.1 |
➖ | ||
| Publish0x | v3.1.1 |
➖ | ||
| Purse | v3.1.1 |
➖ | ||
| Read.cash | v3.1.1 |
✅ | ||
| Reku | v3.1.1 |
➖ | ||
| Revolut | v3.1.1 |
➖ | ||
| RamNode | v3.1.1 |
➖ | ||
| Riften Labs | v3.1.1 |
✅ | ||
| Robinhood | v3.1.1 |
➖ | ||
| Rocketr | v3.1.1 |
➖ | ||
| SatoshiDice | v3.1.1 |
✅ | ||
| SBICrypto Pool | v3.1.1 |
➖ | ||
| ShapeShift | v3.1.1 |
➖ | ||
| SideShift.ai | v3.1.1 |
➖ | ||
| SIGMAPOOL | v3.1.1 |
➖ | ||
| SimpleFX | v3.1.1 |
➖ | ||
| SimpleSwap | v3.1.1 |
➖ | ||
| SolomonPierce | v3.1.1 |
➖ | ||
| SouthXChange | v3.1.1 |
➖ | ||
| Spice NFT Series | v3.1.1 |
➖ | ||
| SpiderPool | v3.1.1 |
➖ | ||
| Stake | v3.1.1 |
➖ | ||
| StealthEX | v3.1.1 |
➖ | ||
| Swapin | v3.1.1 |
➖ | ||
| SwapSpace | v3.1.1 |
➖ | ||
| SwapSwop | v3.1.1 |
➖ | ||
| Swapzone | v3.1.1 |
➖ | ||
| Sweet | v3.1.1 |
➖ | ||
| SWFT Blockchain | v3.1.1 |
➖ | ||
| Swissquote | v3.1.1 |
➖ | ||
| Switchere | v3.1.1 |
➖ | ||
| Swyftx | v3.1.1 |
➖ | ||
| TangoSwap | v3.1.1 |
➖ | ||
| Tapbit | v3.1.1 |
➖ | ||
| TapSwap | v3.1.1 |
✅ | ||
| Tether | v3.1.1 |
➖ | ||
| THORSwap | v3.1.1 |
➖ | ||
| The Giving Block | v3.1.1 |
➖ | ||
| The Real Bitcoin Club | v3.1.1 |
➖ | ||
| The Reapers | v3.1.1 |
✅ | ||
| Tidex | v3.1.1 |
➖ | ||
| Tokocrypto | v3.1.1 |
➖ | ||
| TRASTRA | v3.1.1 |
➖ | ||
| Travala.com | v3.1.1 |
➖ | ||
| Trijo | v3.1.1 |
➖ | ||
| TruBit | v3.1.1 |
➖ | ||
| TxStreet | v3.1.1 |
➖ | ||
| Upbit | v3.1.1 |
➖ | ||
| Uphold | v3.1.1 |
➖ | ||
| Uptick | v3.1.1 |
➖ | ||
| Venmo | v3.1.1 |
➖ | ||
| ViaBTC | v3.1.1 |
➖ | ||
| Visionati | v3.1.1 |
✅ | ||
| Wayex | v3.1.1 |
➖ | ||
| WazirX | v3.1.1 |
➖ | ||
| Wealth99 | v3.1.1 |
➖ | ||
| Wealthsimple | v3.1.1 |
➖ | ||
| WebMoney | v3.1.1 |
➖ | ||
| WEEX | v3.1.1 |
➖ | ||
| WhalesHeaven | v3.1.1 |
➖ | ||
| WhiteBIT | v3.1.1 |
➖ | ||
| Wirex | v3.1.1 |
➖ | ||
| WOO X | v3.1.1 |
➖ | ||
| XeggeX | v3.1.1 |
➖ | ||
| XT | v3.1.1 |
➖ | ||
| XULU.TECH | v3.1.1 |
✅ | ||
| Youhodler | v3.1.1 |
➖ | ||
| Zaif | v3.1.1 |
➖ | ||
| ZebPay | v3.1.1 |
➖ |
The following public statements have been submitted in response to this CHIP.
The following articles have been published in support of this CHIP:
- Bitjson.com: "2025 Bitcoin Cash Improvement Proposals" (October 1, 2024)
- FiendishCrypto: Statement via x.com (October 4, 2024)
- Brunopbch: Statement via x.com (October 4, 2024)
- Nurain: Statement via x.com (October 4, 2024)
- minisatoshi: Statement via x.com (October 4, 2024)
- Life Labs HTMA: Statement via x.com (October 4, 2024)
- BitcoinOutLoud: Statement via x.com (October 4, 2024)
- Jonathan Silverblood: Statement via x.com (October 5, 2024)
- HelpMe.Cash: Statement via x.com (October 5, 2024)
- Kallisti.cash: Statement via x.com (October 6, 2024)
- Forward Financial: Statement via x.com (October 8, 2024)
- Bitcoin Verde: Statement via x.com (October 9, 2024)
- General Protocols: "GP on the VM-Limits and BigInt CHIPs: Statement and Recommendations for the Rest of the Ecosystem" (October 10, 2024)
- BCH Guru: Statement via x.com (October 11, 2024)
- Imaginary_username: Statement via x.com (October 14, 2024)
- Zapit: Statement via x.com (October 15, 2024)
- Mathieu Geukens: Statement via x.com (October 15, 2024)
- NeonDaThal: Statement via x.com (October 15, 2024)
- Taiwan Bitcoin Cash (台灣比特幣現金): Statement via x.com (October 15, 2024)
- Bitcoin Cash Argentina: Statement via x.com (October 16, 2024)
- bchportal.cash: Statement via x.com (October 16, 2024)
- Bitcoin Cash TV: Statement via x.com (October 17, 2024)
- BitcoinCash Nigeria: Statement via x.com (October 17, 2024)
- FullStack.Cash: Statement via x.com (October 18, 2024)
- Pantera Crypto: BitcoinCash 2025 Developments: VM-Limits and BigInt (October 21, 2024)
- CashScript: Statement via github.com (October 22, 2024)
- Bitcoin.com: A Major Improvement to Bitcoin Cash Will Smash Developer Bottlenecks (October 22, 2024)
- FutureBitcoin.cash: FBCH supports CHIP-2021-05 VM Limits (October 23, 2024)
- 2qx: Statement via memo.cash (October 23, 2024)
- Bitcoin Cash Podcast: CHIP Endorsement May 2025 (October 24, 2024)
- Bitcoin Cash Node: BCHN maintainers' opinion on the VM-Limits and Bigint upgrades for 2025 (October 25, 2024)
- Aptissio: Statement via x.com (October 30, 2024)
- A Fifth of Gaming: Statement via x.com (November 1, 2024)
- Knuth: Statement via x.com (November 6, 2024)
- CheapLightning: Cheapy Supports the VMLA and Big Int CHIPS (November 9, 2024)
- Bitcoin Cash Foundation: Statement via x.com (November 9, 2024)
- Riften Labs: Statement via x.com (November 11, 2024)
The following statements have been submitted in support of this CHIP.
The VM Limits CHIP retargets Bitcoin Cash's Denial-of-Service limits to extend compute for real contracts by more than 100x while reducing worst-case node compute usage by 50%. By reducing overhead, the retargeted limits simplify contracts, reduce transaction sizes, streamline contract audits, and improve overall security.
By improving contract efficiency, this upgrade also makes important use cases more practical, including post-quantum cryptography, stronger escrow and settlement strategies, zero-knowledge proofs, homomorphic encryption, and other crucial innovations for the future security and competitiveness of Bitcoin Cash.
Finally, this upgrade raises the bar by contributing new tooling and a cross-implementation benchmarking methodology to continuously verify node performance. Beyond empirically verifying the safety and correctness of the upgrade, these tools will simplify development of new production-ready implementations, prevent regressions in existing implementations, and reduce the cost of verifying implementation-specific software updates.
I'm confident in the extensive cross-implementation testing and verification performed for this CHIP, and I recommend activation in Bitcoin Cash's 2025 upgrade.
—Jason Dreyzehner (@bitjson), Bitauth IDE, Chaingraph, Libauth
I, Calin Culianu, believe the VM Limits and BigInt CHIPs should be included in the BCH upgrade for May 2025.
I was excited about the VM Limits CHIP from at least February of 2024 and began considering it and trying out toy implementations of the earlier version of the CHIP since then. I subsequently worked with Jason a great deal with lots of back and forth in order to evolve the design, and I'm very confident in the final VM Limits CHIP design and rationale. I believe it will unlock a lot of extra capabilities for smart contracts on BCH, as well as plug some performance holes in terms of worst-case performance.
In short: As a result of working on the VM Limits implementation for BCHN, I came to deeply understand its design and rationale and definitely endorse it. I think it is very well thought out and the idioms and costing concepts it invents give us new "knobs" to turn should we decide to turn up the script execution engine limits in the future. It is the right design, and it can take us into the future.
Additionally – The BigInt CHIP came up as an offshoot of the VM Limits work. I believe bringing ~80k-bit integers to BCH script is a huge step forward as it unlocks many previously-impossible contract capabilities. While working on a proof of concept implementation of this CHIP, I was shocked at how fast BigInts are and how low the performance cost for allowing them truly is. It's a no-brainer in my mind to add this additional BigInt CHIP. What's more, VM Limits + BigInt work perfectly together and the costing scheme involved in VM Limits keeps the BigInt changes constrained, so no contract can abuse BigInts to create "poison" transactions or blocks that overuse CPU or memory when validating.
As a Bitcoin Cash developer with many years of experience in this space, I endorse both the VM Limits and BigInt CHIPs for the upcoming May 2025 upgrade to BCH.
—Calin Culianu, Bitcoin Cash Node contributor, Fulcrum lead developer, Electron Cash contributor
The re-targeted VM Limits CHIP solves a real, pressing problem for BCH smart contract developers while also improving the network's security by preventing some worst-case malicious contracts. The research and testing that went into this CHIP is of outstanding quality and sets a standard for future proposals to aspire to.
—Mathieu Geukens, Cashonize creator, CashScript developer, Tokenaut creator
I fully support the
CHIP-2021-05-vm-limits: Targeted Virtual Machine Limitsproposal for Bitcoin Cash. This upgrade enables more advanced, efficient smart contracts by removing outdated restrictions while maintaining safeguards, allowing contract authors to focus on application logic rather than working around the limits.The increased stack element size, revised operation cost system, and targeted hashing limits are well-reasoned improvements enhancing BCH's capabilities without compromising security or performance, and the extensive rationale, benchmarks, and risk assessment provide confidence in its design.
This upgrade is a crucial step in BCH's evolution as a powerful, flexible cryptocurrency platform, and I'm looking forward to designing contract systems leveraging these new features!
—bitcoincashautist, Bitcoin Cash researcher & developer, CHIP-2023-04 Adaptive Blocksize Limit Algorithm Owner
I'm excited about all the possibilities that the VM Limits and BigInt CHIPs enable. Additionally, the simplified contract development is a significant advantage, as it makes it easier for new talent to start building. I approve of activating these CHIPs in 2025.
— OPReturnCode, BCHD lead developer, Electron Cash contributor
BCH has always been smart internet money. Bitcoin Verde supports the bch-bigint and bch-vm-limit CHIPs for the Bitcoin Cash 2025 upgrade. This upgrade enables smart contracts like never seen before on BCH.
—Josh Green (@joshmgreen), Bitcoin Verde
This proposal will unlock the next generation of smart contracts on Bitcoin Cash. Incredibly it unlocks Ethereum-level complexity with no sacrifice at the alter of global state. This will be a huge competitive advantage for Bitcoin Cash in the coming years. The conservative approach to the new limits along with the thorough benchmarking, risk assessment and documentation leave no doubt that we can safely adopt this CHIP in May, and I support doing so.
While the VM Limits proposal unlocks Ethereum-level complexity on Bitcoin Cash, our developer experience (DX) must aim for simplicity. That includes straightforward manipulation of numbers, regardless of their size and without a need for libraries or extra operations. This BigInt proposal will deliver a simple and powerful DX with no compromise on security or performance and I therefore support its adoption."
—Richard Brady, Coinbooth
As a BCH builder and CashScript developer, I wholeheartedly support the VM limits and big integer upgrades proposed by Jason Dreyzehner. These changes are crucial for expanding Bitcoin Cash's smart contract capabilities and improving overall network efficiency.
The density-based limits and removal of arbitrary number size restrictions will enable more complex on-chain applications, benefiting projects like TokenStork.com and opening new possibilities for CashScript development. The rigorous testing and community-driven approach to these upgrades instill confidence in their implementation.
I believe these enhancements will significantly contribute to Bitcoin Cash's growth as a versatile and powerful Web3 network, aligning well with the goals of increased Bitcoin adoption and usability that drive projects like BitcoinCashSite.com.
—George Donnelly, Panmoni, TokenStork, BCH Works, BCH Latam
As an ecosystem supporter and Fulcrum server operator, I wholly endorse CHIP 2021-05 Targeted Virtual Machine Limits and CHIP 2024-07 BigInt. I have no concern with my node's ability to keep operating effectively, and expect that projects I contribute to will be able to take full advantage of these improvements.
Though a long period of discussion, it appears all major concerns I've seen have been addressed. Frankly, from all I've read, these limits are rather conservative!
The massive work put in by Jason Dreyzehner, Calin Culianu, and bitcoincashautist is inspiring. The attention to detail, time put into addressing concerns, running massive testing suites, etc. I hope to see both CHIPs locked in November, and activated in 2025!
—Alex (@minisatoshi), minisatoshi.cash, Fulcrum server operator
The VM Limits & BigInt CHIPs expand the power of Bitcoin script within BCH with minimal, if any downside. It's exciting to think about how it could potentially unlock new DeFi applications, and I appreciate the thorough risk assessment documentation that went into the CHIPs. Great work!
—Jonald, Electron Cash developer
Super excited by the new upgrades. VM Limits improvements and Big Integers are going to change the game completely. I have so many ideas for things we can do with these once live. Plus the prep work and test harnesses are top notch. Amazing what happens when devs work together.
—Josh Ellithorpe (@zquestz), bitcoincash.org, BCHN contributor, Electron Cash contributor, Fulcrum server operator
I express my sincere support towards implementation and activation of improved VM limits and bigint support in BCH.
Through divine intuition, I Luke Pryor The High Rabbi Of Bcash ($bch) support these two chips for the 2025 upgrade Cycle.
—Luke Pryor (@thelukepryor), Life Labs HTMA
On behalf of Bitcoin Out Loud, I’m endorsing CHIP-2021-05 VM Limits and CHIP-2024-07 BigInt for 2025 activation on the Bitcoin Cash network.
From my point of view as a mildly technical enthusiast, each is a big step towards Bitcoin Cash taking the lead in decentralized finance.
Based on the significant benefits these two CHIPs offer the Bitcoin Cash network and decentralised p2p cash, both of these CHIPs have my full endorsement for implementation for the May 2025 BCH upgrade.
—FiendishCrypto (@FiendishCrypto)
As a software developer in the #BitcoinCash ecosystem I have reviewed and endorse both VM Limits and the BigInt changes for activation in May 2025. All concerns I have raised have been adequately addressed and I believe the value provided clearly outweigh the cost and risks.
—Jonathan Silverblood (@monsterbitar), BCH BULL co-founder, General Protocols co-founder
I support the VM Limit and BigInt CHIPs for Novemeber lock-in. MOAR scripting capability!
—Sayoshi Nakamario (@SayoshiHelpMe), HelpMe.Cash, badgers.cash, FundMe.Cash, CasualBCH Podcast
I formally support activation of the following two CHIPs for the Bitcoin Cash (#BCH💚) 2025 upgrade cycle:
- CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits
- CHIP-2024-07 BigInt: High-Precision Arithmetic for Bitcoin Cash
These two CHIPs dramatically increase the power of the BCH Script engine, while also making it significantly more efficient.
The VM Limits CHIP implements a new script budgeting system that maximizes the resources available to a script without introducing any new worst-case scenarios or DoS vectors.
This allows contract developers to reduce the complexity of their scripts while also affording them increased power and flexibility. Despite the increased flexibility, these scripts do not negatively affect the BCH economic model, as the budgeting system is measured against a standard P2PKH transaction as a baseline for worst-case validation times.
The companionate BigInt CHIP enables the script engine to operate on integers of any magnitude (hundreds or thousands of digits). This allows contract and wallet developers access to bleeding-edge crypto technology such as quantum-resistant wallets, zero-knowledge-proof verification, and on-chain encryption.
The benchmarking suite that was developed to R&D this CHIP is also quite impressive: it thoroughly tests every possible combination of arithmetic opcodes in order to prove that worst-case transaction validation times are not negatively impacted by the changes proposed in this CHIP.
Overall, this CHIP (which started research in 2021, with the BigInt CHIP ending up as a "freebie" thanks to the new budgeting system) has a very clear analysis of benefits, risks, and implementation costs. On behalf of myself, Selene Wallet, bch.ninja, and XULU.TECH LLC, I couldn't be more excited to endorse activation of these two CHIPs for the November lock-in.
—Kallisti.cash (@kzkallisti), Selene Wallet, bch.ninja, XULU.TECH LLC
I support BigInt and VM Limits CHIPs. It had me on stronger escrow contracts and post-quantum cryptography. BCH is making it nearly impossible for other coins to compete.
—Bruno (@brunopbch), translation (Brazilian Portuguese), merchant onboarding
I'm often humbled by the big brains in the #BitcoinCash space. When asked to submit my 0.00006 #BCH on the proposed 2025 CHIP for VMLimits & BigInt, I thought; I'm in no way qualified to weigh in on such matters. From a tech/dev perspective, I truly am not!
Then, I realized that it's not JUST about the tech...it's also about timing, striking while the iron is hot and doubling-down on the #BitcoinCash momentum we're seeing happen right now! This is something I DO know a lot about, having single-handedly built a business from the ground up and seizing opportunities in a timely manner when they presented themselves.
It might just be me, but I can't help feeling like we're at the dawn of some really big things with #BitcoinCash. For that reason, and FWIW, I fully support the 2025 CHIP for VMLimits & BigInt (bonus👊). I think NOT capitalizing on this opportunity (that's been three years in the making) will come with bigger opportunity costs than the low-risk of moving ahead NOW with this thoroughly vetted CHIP in May of 2025!
We all stand on the shoulders of giants in one way or another and I take comfort knowing we have some of the biggest giants, brains and heavyweights in all of Crypto!
Let's add rocket-fuel to the #BCH Script Engine!🚀 Bring on the smart contract and #BCH DApp goldush!⛏️ Release the horde of new developers, users and converts!🤯
VMLimits & BigInt FTW! 👊💚💪
—Steve Thurmond (@stevethurmond), Forward Financial, LLC, CashStamps creative
The VM Limits and BigInt CHIPs sound great, I support activation in 2025. I think the cost for the network is that nodes have to implement high-precision arithmetic which will make accounting more accurate. I love to have more tests and benchmark so we can move forward with confidence.
—Damascene, Googol.cash Testnet Faucet, Hur project, Flipstarters on Bitcoin Cash
As a developer of Opal Wallet, I fully endorse the activation of CHIP-2024-07-BigInt and CHIP-2021-05-vm-limits in the upcoming 2025 Bitcoin Cash upgrade. These improvements are key to realizing Bitcoin Cash's vision as true electronic cash, optimizing contracts and transactions on-chain. For Opal Wallet, these CHIPs will directly enhance features such as:
- Batch Payments: Enabling businesses to make bulk payments more efficiently.
- Reduced Fees: Leveraging high-precision BigInt operations to reduce contract sizes and transaction fees for users.
- Improved UTXO Management: Expanding capabilities for handling complex UTXOs, enhancing user control, privacy, and efficiency.
These upgrades enhance BCH's scripting abilities without compromising speed or security, aligning with our mission to provide the best possible Bitcoin Cash experience to all users.
—Coda Beatrix (@codabeatrix), Developer at 58 Opals, Developer of SwiftFulcrum/Opal Base/Opal Wallet
I looked over the VM Limits and BigInt CHIPs, and I support activation in 2025. These proposals seem like a sensible thing to do, since most of these limits were set 10+ years ago, for hardware that would be considered barely functional today. Seems like these proposals should enable much more interesting use cases.
We at General Protocols hereby formally announce that we support CHIP-2021-05-vm-limits: Targeted Virtual Machine Limits per commit 6b87d517081f2fdba6a50b8e7fb9147321def609, and CHIP-2024-07-BigInt: High-Precision Arithmetic for Bitcoin Cash per commit d1406b6984c5528983a029c79111646e95286b8c for activation on mainnet BCH in May 2025.
As a native BCH smart contract focused company, we expect the two proposals to enable simpler, more secure and more powerful uses for BCH as programmable money, in line with a streak of useful BCH Script upgrades that started in 2022. We are already seeing infrastructure preparations to take advantage of this in the work such as Cashscript, and we expect more projects to come online in the months to come.
The Bigints proposal was announced later than most other CHIP precedents in a barebones form, which did cause concern for us as we expressed in our previous assessment. We are nonetheless impressed by the rapid pace of its progress and the rigorous discussions that has taken place since our last assessment. The Bigints proposal integrates well with the VM-Limits CHIP, and both proposals would be in poorer shape without the other. In our opinion both CHIPs have met the bars for rigor established in previous years, and are now in sufficiently good shape for inclusion together.
This endorsement shall not be taken as an endorsement for latecoming proposals in general: Circumstances around the Bigints CHIP was extraordinary, and correspondingly extraordinary efforts were made to secure it in time both technically and socially. We believe we have contributed our share in offering constructive scrutiny through the process, and would like to see the bar remain high in terms of robustness and timeliness for future CHIPs.
I support the CHIP-2021-05-vm-limits and CHIP-2024-07-BigInt upgrades for lock-in on November 2024 and activation in May 2025.
There is definitely more work to do, but I think they are in sufficiently good shape and opens sufficiently important usecases, they warrant my support.
—imaginary_username (@im_uname)
We at Guru Labs are thrilled about the work on the VM Limits! The 'Targeted VM Limits' CHIP will unblock a lot of smart contract development running into the current limits. Not only will the CHIP improve contract development on BCH, it will also improve network security against malicious contracts. The community reception, review and initial statements have been very reassuring. We look forward to experimenting with what new possibilities this enables for future Guru contracts!
For Guru contract development we were careful to be aware of all important gotchas with BCH smart contracts. The BigInt CHIP would remove one of those 'gotchas' by removing contract failures on integer overflows. Our enthusiasm about the VM Limits work extends to the BigInt CHIP, as they have been thoroughly tested together. Both CHIPs have our full support for 2025 activation!
After reviewing the latest #BCH CHIPs (BCH BigInt and BCH VM Limit) for the Bitcoin Cash 2025 upgrade, We fully support both as it upgrades BCH smart contract capabilities which are helpful to us and others to build better products.
Although my technical understanding of the 2 proposed CHIPS for 2025 upgrade is only superficial, I’ve followed the real time, lengthy discussions by those that are deep in the detail and am confident that they will expand the capabilities of BCH further & I endorse both CHIPS.
—Neon(Da)Thal (@neondathal)
After studying the latest CHIPs for the Bitcoin Cash 2025 upgrade (BCH BigInt and BCH VM Limit) and discussing with technical experts @Darkerduck.
As investors, business owners and promoters, we fully support both as it upgrades BCH Smart contract functionality.
—Taiwan Bitcoin Cash (台灣比特幣現金, @twbitcoincash)
Apoyamos plenamente ambos #BCH CHIPs (BCH BigInt & BCH VM Limit) para la actualización de 2025. Estas propuestas mejorarán las capacidades de los contratos inteligentes, permitiéndonos construir nuevos productos que amplíen el uso del efectivo electrónico peer-to-peer.
We fully support both #BCH CHIPs (BCH BigInt & BCH VM Limit) for the 2025 upgrade. These proposals will enhance smart contract capabilities, allowing us to build new products that expand the use of peer-to-peer electronic cash.
—Bitcoin Cash Argentina (@BCHArgentina)
Our absolute focus is to bring Bitcoin Cash to the world. The ABLA upgrade made Bitcoin Cash infinitely accessible with autonomously economic transactions and a 1000× efficiency advantage. VM Limits & BigInt make Bitcoin Cash not only the most accessible payments blockchain but the most future proofed in regards to overall security, speed and mathematical excellence at the DeFi level.
—CypherCat (@thecyphercat), bchportal.cash
I approve of the activation of the VM Limits and Bigint CHIPs and looking forward to helping realize some of the exciting possibilities that these upgrades enable.
—Joemar Taganna, Paytaca
The current VM Limits have been a sometimes difficult constraint for contract development on BCH. The new VM Limits proposed are sensibly calibrated such that it gives BCH far greater (and, very often, more efficient) scripting capabilities while ensuring no additional cost beyond the current worst-case scenarios already present in BCH's VM. Both the VM Limits CHIP and the BigInt CHIP have my full support for a May 2025 activation.
Big big thank you to Jason, Calin, BCA and others for all of their hard and brilliant work in researching, benchmarking and coordinating to make this happen!
Bitcoin Cash TV supports adding the VM Limit & Big Int CHIPS to the 2025 BCH Upgrade. It will help BCH stay competitive & up to date in the Cryptocurrency space.
—Bitcoin Cash TV (@BitcoinCashTV)
We fully support both #BitcoinCash CHIP-2021-05-vm-limits and CHIP-2024-07-BigInt upgrades for 2025. These Chip proposals will enhance smart contract capabilities, allowing us to build new products that expand the use of peer-to-peer electronic cash.
—BitcoinCash Nigeria (@bch_nigeria), BCH Festival
I support the VM Limits and BigInt CHIPs, and I look forward to the possibilities they open up.
—Chris Troutner (@christroutner), FullStack.Cash, Permissionless Software Foundation contributor
Visionati approves of both CHIPs. We feel they will be an excellent addition to BCH and allow script writers much needed flexibility to extend BCH functionality.
The CashScript compiler has been one of the main tools through which BCH contract developers encounter the current, overly restrictive VM limits. The implementation of the 'Targeted VM Limits' CHIP will significantly reduce this pain point, providing much-needed flexibility without compromising the security or scalability of the network.
For BCH contract developers, the most immediate limit will shift from the current 201-opcode limit to the 1650-byte input size standard rule. This CHIP effectively expands the capacity of smart contracts to include approximately ~10x the number of opcodes or ~3x the byte size.
We are excited to eliminate the 201-opcode and 520-byte limits from the CashScript compiler, empowering BCH contract developers to experiment with and build more powerful and innovative smart contracts.
By enabling greater flexibility in smart contract design, BCH is positioning itself as a testbed for risk-on features, similar to how Litecoin led the way with Segwit before Bitcoin. It’ll be interesting to see how BCH developments are adopted in the crypto space.
—Corbin Fraser (via Bitcoin.com News), Bitcoin.com CEO
These proposals are net positives for Bitcoin Cash. By removing outdated restrictions, they’re giving developers the freedom to create the next generation of BCH dapps with greater efficiency and security. That’s obviously a win for users too.
—Andreas Larsson (via Bitcoin.com News), Bitcoin.com Director of Engineering
The VM-limit CHIP is a much better retooling of computation and cost trade-offs to safely expand the potential of the VM without impacting performance. Great work!
—2qx (via Memo.cash) Future Bitcoin Cash, Unspent, Unspent Phi, mainnet-js contributor, awesomebitcoin.cash
SatoshiDice fully supports both Proposals - Yes to both! We echo the sentiments of Bitcoin.com: https://news.bitcoin.com/a-major-improvement-to-bitcoin-cash-will-smash-developer-bottlenecks/
Let's keep building Bitcoin Cash into the currency of the future!
—SatoshiDice Admin Team
I support CHIP-2021-05 VM Limits and CHIP-2024-07 BigInt. Training wheels are always meant to come off when safe to do so. This is a safe, well vetted, power-enhancing and widely encouraged upgrade.
—Andrew#128, Bitcoin Cash Node contributor, Electron Cash contributor
The Bitcoin Cash Podcast is adding its support & approval for
CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits&CHIP-2024-07 BigInt: High-Precision Arithmetic, to lock in November 15 2024 & go live May 15 2025.—Bitcoin Cash Podcast (CHIP Endorsement May 2025, October 24, 2024)
Two Cash Improvement Proposals (CHIPs) are currently frontrunners for lock in on 15th November 2024, and activation on 15th May 2025: CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits and CHIP-2024-07 BigInt: High-Precision Arithmetic for Bitcoin Cash. Despite CHIP-2024-07-BigInt's late introduction, both of them have matured as of October 2024, and are receiving widespread support from the community.
The Bitcoin Cash Node team was intimately involved with implementing and testing both proposals. The maintainers can now confidently say that these CHIPs seem to be in sufficiently good shape, and worthy of our endorsement.
We have additionally erected a temporary server at https://index.imaginary.cash with Fulcrum port at 50006, which will serve as a testing ground for post-activation contracts until the proposals' likely activation on Chipnet this November. Anyone interested in preliminary tests is welcome to use this facility as well.
—Bitcoin Cash Node (BCHN maintainers' opinion on the VM-Limits and Bigint upgrades for 2025, October 25, 2024)
The BCHF endorses both CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits and CHIP-2024-07 BigInt: High-Precision Arithmetic for Bitcoin Cash, and wish to thank Jason Dreyzehner and everyone who worked tirelessly to make this happen.
I, Cheap Lightning endorse both CHIP-2021-05 VM Limits: Targeted Virtual Machine Limits and CHIP-2024-07 BigInt: High-Precision Arithmetic for Bitcoin Cash, and wish to thank Jason Dreyzehner and everyone who worked tirelessly to make this happen*
* https://read.cash/@CheapLightning/cheapy-supports-the-vmla-and-big-int-chips-3157c663
—Cheap Lightning (@CheapLightning), Bitcoin Cash Foundation, Flipwatch, Discover.cash
The following statements have been submitted from individuals and organizations that disapprove of this CHIP.
The ideas look very good and clearly intend to make the capabilities next gen, which is great. The proposal is lacking in the parts where we can understand the actual impact to scaling and operations.
There isn't any wall-clock analysis to that should be front and center on the risk-assessment side. Without putting in the hours ourselves it is nigh impossible to figure out how long it will take to validate transactions or blocks that push the boundaries of what is allowed.
We can't approve it without such basic analysis, but giving a vote of disapproval is also too far, the benefits are great. Maybe we'll see a report on actual impact (linking to data) before the May upgrade. That would be ideal.
Maintainer Response: Please see Tests & Benchmarks and also note the 10-100x node performance safety margin described in Risk Assessment: Expanded Node Performance Safety Margin.
The following statements have been submitted from individuals and organizations that abstained from approving this CHIP.
I validated the overall MR 1891 for the VM Limits and BigInt CHIPs with the updated LibAuth and benchmark scheme. I performed benchmarks and executed the test plan. After that I shared my results with the BCHN development team, everything looks good and results match expectation (and my CPU is apparently 30% faster than from Calin ^^).
Although I'm not the expert of the BCHN code source, everything does seems to work as expected eventually and compiling now also works without any warnings. Despite not having the deeper knowledge about the technical implementation of the CHIPs, better performance is always very welcome! Specifically in favour of the reduced transaction sizes; same for reduction of storage as well as CPU usage reduction. I'm running a full node after all. Disclaimer: I didn't yet run production or load testing with the latest CHIPs. If I find any regression, I will report it via GitLab / Slack.
—Melroy van den Berg, Melroy's BCH Explorer, Melroy.org