Polkadot’s Biggest Upgrade Since Launch Is No Longer Theoretical

Polkadot has been discussing JAM as a potential successor to its current Relay Chain. That shift is now leaving the realm of research papers and sweeping technical aspirations. Polkadot developers released a production roadmap in September 2026 that provides a clearer timeline for the launch of JAM and outlines how Relay Chain responsibilities will be [...]

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