Cardano entered the Conway era as the Chang hard fork went live

Cardano activated its Chang #1 hard fork at 21:44:51 UTC on September 1, 2024, moving the mainnet into the Conway ledger era and placing the first stage of its new on-chain governance system into operation.

The transition was a consequential protocol event because it began replacing Cardano’s founding-entity-led update mechanism with governance defined in Cardano Improvement Proposal 1694. It did not, however, transfer every decision immediately to ADA holders. September 1 opened a technical bootstrapping phase with deliberately limited powers; full participation by delegated representatives and treasury withdrawals remained outside the active framework.

From governance keys to on-chain actions

Before Chang, CIP-1694 described Cardano’s principal governance actions as requiring authorization from five of seven governance keys. That arrangement could authorize protocol-parameter changes and movements involving reserves or treasury funds, but it did not provide ADA holders with an active on-chain voting role.

CIP-1694 proposed three governance bodies for the replacement system: delegated representatives, or DReps; stake-pool operators; and a constitutional committee responsible for assessing whether actions complied with the governing constitution. ADA holders could delegate voting power to DReps rather than voting on every proposal personally.

Chang #1 installed the ledger machinery for that model but activated only its bootstrap configuration. The Cardano Foundation’s immediate post-event account said the interim constitutional committee could oversee governance while stake-pool operators retained approval responsibilities for protocol-parameter changes and hard-fork initiations. Information actions could also be recorded on-chain.

DReps could register and ADA holders could begin delegating voting power, but DRep participation in binding governance decisions was not yet enabled. Treasury withdrawals, motions of no confidence, constitutional replacement and the broader set of governance actions depended on a second upgrade. Describing Cardano as fully governed by token holders on September 1 would therefore overstate what the first fork delivered.

Readiness was broad but self-reported

Intersect announced the activation date after an August 28 meeting of the hard-fork working group, whose participants included Intersect, EMURGO, the Cardano Foundation and Input Output. Intersect reported that stake-pool readiness had reached 92% by active stake, exchange readiness exceeded 90% by liquidity and decentralized-application readiness covered more than 50% of total value locked.

Those figures were contemporaneous operational indicators, not audited market statistics. Intersect did not publish enough underlying venue, application or valuation detail in the announcement to independently reconstruct the percentages. They nevertheless showed why the working group believed the network had reached the critical mass needed to proceed.

Cardano used its hard-fork combinator for the transition. The design joins successive protocol eras into one chain history rather than creating a competing asset through a persistent chain split. Users therefore did not receive a separate “Chang” coin, and the event did not itself change the number of ADA held in an address.

What September 1 established

The verified achievement was narrower—and more technically significant—than the broadest claims about instant decentralization. Cardano successfully changed ledger eras and activated a constitutional, transaction-based governance framework without abandoning its existing chain history.

The longer-term distribution of influence remained unresolved on September 1. Registration counts, delegated voting concentration, constitutional-committee behavior, voter participation and the eventual activation of the remaining governance powers would determine whether the machinery produced decentralized outcomes in practice.

No ADA price, trading-volume or market-return claim is included because protocol activation does not by itself establish a causal market response. The event-day record supports a successful governance infrastructure upgrade, not a conclusion about adoption, token value or the performance of the system’s later stages.