Techub News reports that Polkadot announced on X platform that its token issuance model upgrade will officially take effect on March 14. This protocol update will introduce several key adjustments, including setting the maximum supply of native token DOT at 2.1 billion, with approximately 80% of tokens currently issued. The issuance rate of DOT will be reduced by approximately 53% in a single adjustment on March 14 and is planned to continue gradually declining in the future. The above adjustments were proposed by the community and approved through the OpenGov governance mechanism, aiming to limit long-term issuance scale while maintaining network incentive mechanisms, and provide the market with a more transparent and predictable token issuance path.