Announced in 2024/4, Join Accumulate Machine (JAM) is Polkadot's biggest update since the blockchain first became fully operational in 2021. It will bring major changes to the relay chain that underpins the project's ecosystem that supports all independent blockchains.
The proposed technical principles and goals of the JAM update are outlined in the JAM Gray document written by Gavin Wood, the creator of #Polkadot .
Polkadot relies on decentralized governance to determine the future of the project, and the proposed update was confirmed after a nearly unanimous vote of #DOT holders in 2024-2025.
Welcome to Decrypt's Polkadot Week, a regular roundup of the latest developments in the Polkadot ecosystem. The Join-Accumulate Machine (JAM) update, the next stage of Polkadot's technological evolution, was approved by a collective vote of Polkadot community members and almost unanimously approved by network validators. JAM, announced by Gavin Wood, founder of Polkadot, in Dubai on May 4 at Token2049, will be the most important update since...
What is jam?
JAM is an update to Polkadot's multi-chain network, which aims to replace the relay #chain with a "more modular and minimalist design. ""
The relay chain is the main chain of the Polkadot network, coordinating a parallel chain that processes transactions in parallel on the network. It is used to verify transaction addresses and standardize data so that every system can understand it, and is a chain in the Polkadot network.
According to Web3Foundation, Polkadot's founding organization, Jam allows Polkadot to "run a common 'service' that represents the logic of smart contracts that can process execution results in the core. "\n Unlike the existing Polkadot relay chain, JAM is essentially a no-solution and anyone can create a service based on it.
It is a departure from the complex and investment-intensive current system, where developers have to auction leases with the support of project backers who have set up dot tokens to assist in the bidding process.
Polkadot development continues with a candidate jam project for future iterations of Polkadot Relay.
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