According to @alice_und_bob, Polkadot Upgrade 2.0.5 is up for on-chain governance under Referendum 1828 on polkadot.subsquare.io, indicating a live vote on the network parameters. Source: @alice_und_bob; https://polkadot.subsquare.io/referenda/1828 The proposal specifies capping total DOT issuance at 2.1 billion, enabling Solidity smart contracts, and setting Hub block time to two seconds. Source: @alice_und_bob; https://polkadot.subsquare.io/referenda/1828