Polkadot has officially launched its upgraded issuance model on March 14, introducing significant changes to its protocol. The upgrade establishes a maximum supply cap of 2.1 billion DOT, with approximately 80% already issued. Additionally, the emission rate of DOT will be reduced by about 53% starting March 14, with plans for further reductions in the future. These changes, proposed by the community and approved by OpenGov, aim to limit long-term issuance, maintain incentives, and provide a transparent and predictable issuance schedule.