Polkadot has implemented a significant upgrade to its token issuance model, capping the maximum supply of its native DOT token at 2.1 billion. This update, announced on X, includes a permanent reduction of the DOT issuance rate by approximately 53%, with plans for further gradual decreases. The changes, proposed by the community and approved through the OpenGov governance mechanism, aim to limit long-term token issuance while maintaining network incentives. This move is expected to provide a more transparent and predictable token issuance path for the market, with about 80% of the total DOT supply already issued.