Chang Upgrade #1 readiness

This page outlines the engineering and ecosystem readiness for the Chang hardfork.

Chang #1 hard fork successfully occurred 1st September 2024 on Cardano Mainnet.

This page is an attestation of readiness reported at that time, which was used by the hard fork working group to make the recommendation to hard fork.

Please note that the evidence and attestations below are no longer up to date, further releases or versions could now be available - please check with the provider of any tool, product or service prior to use.

Hard fork recommendation

The following information was reviewed by the hard fork working group and seen as sufficient evidence to recommend enacting the Chang #1 hard fork on Mainnet

• The hardfork working group met on 2024-08-28 to discuss the Go / No Decision, the group unanimously agreed to proceed with the hardfork mainnet on 1st September.

  • The hardfork action was subsequently signed by the genesis keys and submitted to chain: see transaction via cardanoscan.

• By Stake, over 92% of SPOs on 9.1.0 - the desired hard fork threshold for SPOs has been reached 🎉
• By Liquidity, over 92% of Exchanges on 9.1.0 - the desired hard fork threshold for exchanges has been reached 🎉
• TVL by top 20 DApp projects are over 83% ready, with steady progress and testing on PreProd from August 24.

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Core Infrastructure Components

Core infrastructure encompasses all technologies included within the Cardano Node, as well as key tools.

High-level status: Ready

Name	Status
Ledger	Ready
Consensus	Ready
Network	Ready
Plutus Core	Ready
Cardano CLI	Ready
DB-Sync	Ready
End to End Testing	Ready
Performance and Tracing	Ready

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Environments

Cardano has a range of network environments, and each will require a Hard Fork, below we compare the prevalence of Cardano blocks created by Node versions within the last 8 hours. 75%+ will indicate readiness for the Hard Fork to Conway ( Protocol 9.0)

High-level status: Ready

Network	9.1.0 Blocks (%)	Ledger Era	Governance
MainNet	92%	Babbage	N/A
PreProd	95%	Conway	Bootstrapping Phase
Preview	84%	Conway	Bootstrapping Phase
SanchoNet	100%	Conway	Full (post-bootstrapping)

For live numbers please visit Cexplorer/versions

Total Stake Pools	Stake Pools Ready	Stake Ready %
3097	1163	92.46 %

For the latest numbers please visit: cardanoscan

Section maintained by IOG Core Tech Team

Last Updated; 2024-08-27

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Exchange Readiness

Exchange readiness is tracked against the top exchanges by ADA liquidity (as reported by Cexplorer/hfs).

For the latest info on Exchanges by Liquidity please visit: Cardanoscan (source) and Cexplorer.

Exchange	Status
AscendEX (BitMax)	Ready
Azbit	Ready
Binance	Ready
Binance US	Ready
BingX	Ready
BitBNS	Ready
Bitfinex	Ready
Bithumb	Ready
Bitkub	Ready
BitMart	Ready
Bitrue	Ready
Bitvavo	Ready
Blockchain.com	Ready
BTSE	Ready
Bybit	Ready
CEX.IO	Ready
Changelly PRO	Ready
Coinbase Exchange	Ready
CoinEx	Ready
Crypto.com Exchange	Ready
EXMO	Ready
FMFW.io	Ready
Gate.io	Ready
HitBTC	Ready
HTX	Ready
Indodax	Ready
Kraken	Ready
KuCoin	Ready
LATOKEN	Ready
LBank	Ready
LCX Exchange	Ready
Mercado Bitcoin	Ready
MEXC	Ready
OKCoin Japan	Ready
OKX	Ready
P2B	Ready
Poloniex	Ready
TokoCrypto	Ready
Upbit	Ready
WhiteBIT	Ready
WOO X	Ready
Bitbank	In Progress
Bitstamp	In Progress
Coinstore	In Progress
DigiFinex	In Progress
Paribu	In Progress
XT.COM	In Progress

Section maintained by Cardano Foundation

Last Updated; 2024-08-29

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Tooling Readiness

Tooling readiness is supported from version Node 9.1.0 compatible releases and reported by each team.

High-level status: In Progress

Low-Level Tooling

We define Low-Level Tooling, as tools which are required by higher-level tools, dApps, and wallets.

Libraries

Library	Status
Cardano Serialization Library	Ready
Cardano Multiplatform Library	Ready
Cardano JavaScript SDK	Ready
Pallas	Ready
Cardano Transaction Library	Ready
MeshSDK	Ready
Aiken	In Progress

Tools

Tools	Status
cardano-wallet	Ready
Rosetta	Ready
GraphQL	Ready
cntools (guild-operators)	In Progress
SPO Scripts (@gitmachtl)	Ready
Ogmios	Ready

Indexers

Indexers	Status
Kupo	In Progress
Oura	Ready
Scrolls	In Progress
DB-Sync	Ready
Carp	Ready

Higher Level Tooling

Tools	Status
Blockfrost	Ready
Koios	Ready (telegram announcement here)
Maestro	Ready

Section maintained by Cardano Foundation

Last updated; 2024-08-28

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Wallets Readiness

Wallet readiness is tracked against their integration against Cardano Node versions, as well as self-reported readiness.

High-level status: In Progress

Light Wallets

Wallet	Highlevel Status	Preview Network
Begin	Ready (no governance features)	Ready (no governance features)
Eternl	Ready	Ready
Eternl (mobile)	Ready	Ready
Lace	Ready	Ready
Nami	Ready (no governance features)	Ready (no governance features)
Nufi	Ready	Ready (no governance features)
Vespr	Ready	Ready
Vespr (Mobile)	Ready	Ready
Tokeo	Ready (no governance features)	Ready (no governance features)
Yoroi	Ready	Ready (via nightly)
Yoroi (Mobile)	Ready	Ready (no governance features)
Gero	In Progress	In Progress
Gero Mobile	In Progress	In progress
Typhon	In Progress	In progress
Flint	Won't progress (X post)	Won't progress (X post)

Key

• no governance features: Indicates that a wallet has updated their infrastructure to be able to survive the hardfork. But they have not added any new features to be able to interact with on-chain governance.

Hardware Wallets

Wallet	Readiness
Trezor	Ready
Ledger (Nano S+, Nano X, Stax)	Ready
Ledger (Nano S)	Ready (see announcement)
Keystone	Ready

Full Node / CLI Wallets

Wallet	Readiness
Daedalus	Ready
AdaLite	Ready
CNTools	Ready

Section maintained by the Wallets Working Group

Last updated; 2024-08-30

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DApp Project Readiness

DApp and project readiness is tracked against self reported readiness, dApp developers do need to prepare as Conway will change costing around the use of reference scripts.

Please see Ref Script Cost Calculator from IOG Core Team.

High-level status: In Progress

Project	Status
Minswap	Ready (X post)
Indigo	Ready
Liqwid (finance)	Ready
Sundae Labs	Ready
Djed	Ready
Lenfi	Ready
Wingriders	Ready (X post)
MuseliSwap	Ready
VyFinance	Ready
Levvy Finance	Ready
Danogo	Ready
Astarter	Ready
Saturn Swap	Ready
CherryLend	Ready
Charli3	Ready
NEWM	Ready
Orcfax	Ready
Genius Yield	Ready
Iagon	Ready
NMKR	Ready
Summon	Ready
Optim	In Progress
Fluid Tokens	In Progress
Axo	In Progress
Spectrum	In Progress
Splash	TBC
TeddySwap	TBC
Cerra	TBC
21.co	TBC
Aada Finance	TBC
Book.io	TBC
Clarity	TBC
DexHunter	TBC
Encoins	TBC
JPG.Store	TBC
Lending Pond	TBC
Moneta	TBC
MyUSD	TBC
Revuto	TBC
Rosenbridge	TBC
USDM	TBC

TVL Numbers supplied via Defi Lama.

Section maintained by Anatasia Labs

Last updated; 2024-08-30

Supporting Governance Initiatives - Readiness

The Chang #1 hardfork will introduce governance to Cardano, specific tooling is being developed to support the governance model.

Whilst having governance tools prepared for mainnet hardfork is ideal, these tools should not block mainnet hardfork.

Governance Tooling

High-level status: In Progress

Tool	Status
GovTool	In Progress
Constitutional Committee Portal	In Progress
DRep Campaign Platform	In Progress

Section maintained by the Governance Tools Working Group

Last Updated; 2024-08-30

Interim Constitutional Committee Readiness

Interim Constitutional Committee readiness is tracked against training module completion as well as on-chain mainnet cold credential creation.

High-level status: Ready

Member	Readiness
Cardano Atlantic Council	Ready
Cardano Japan	Ready
Cardano Foundation	Ready
Eastern Cardano Council	Ready
Emurgo	Ready
Intersect	Ready
Input Output	Ready

Section maintained by IOG Voltaire Team

DRep Pioneer Program

DRep Pioneer Program readiness is tracked against total number of participants who have gone through a DRep pioneer program workshop. Learn more and get involved: DRep Pioneer Program Overview.

High-level status: Ready

Total DRep Training Completed	Status
50	Ready
75	Ready
100	Ready
150	Ready
300	Ready

Section maintained by Intersect DRep Pioneer Program lead

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More information on the Major Release Process is also available, as well as a frequently asked questions page.