https://polkadot.subsquare.io/referenda/1546

Polkadot is planning to upgrade to version 1.5.0, which includes a new update called polkadot-sdk 2412-4. This update helps the network to grow and change easily, like a balloon that can stretch. After the upgrade, another step is needed to make a feature called Elastic Scaling work. You can learn more about the upgrade by reading the fellowship release notes. The upgrade will happen around May 14, 2025.