Polkadot is being upgraded to a new version called runtime v9370. This upgrade has some specific details which can be found in the release notes.
The upgrade includes changes to the system, such as a new utility called System.setCode using Utility.withWeight.
There are also changes to the runtime, including improvements to pallet-assets and contracts, and the addition of Nfts 2.0.
This proposal is an external motion, which means that after the council approves it, the community will have the final say in a referenda queue.
Make sure to vote when the time comes!