Uniswap has announced the rollout of v2 on various prominent chains, including Polygon, Arbitrum, Base, Optimism, Avalanche, and Binance Smart Chain. Users within the community can now enhance liquidity, establish pools, and execute swaps on their preferred chains using their favorite tokens via the Uniswap interface.

The introduction of v2 on major chains positions it alongside v3 in terms of prominence, despite v3's innovative features. The straightforward nature of v2 may appeal to users who lack technical expertise or prefer simplicity in their interactions.

Both versions, v2 and v3, coexist, offering greater flexibility to users. While v3 may cater more to active liquidity providers (LPs), v2 covers a broader pool range by default, alleviating the need for constant monitoring and management by LPs.

Notable benefits of v2 include reduced gas fees and minimal MEV (Miner Extractable Value). Uniswap has highlighted significant gas savings, with actual costs sometimes amounting to less than a dollar, a significant contrast to the average $35 fee for swaps on Ethereum.

Sequencers play a crucial role in mitigating MEV on layer 2, particularly for longtail assets susceptible to losses due to MEV. Uniswap leverages the capabilities of v2 to lower costs for users.

Users can access v2 through the official Uniswap website, selecting networks and tokens as needed. The Uniswap Interface automatically finds the most cost-effective swap for users.

In terms of gas efficiency, v2 streamlines the deployment of new pools by default, unlike v3 where it's listed as an option. The Pools tab on the Uniswap website offers three functions: Import Pools, Create Pools, and Add Liquidity.

Uniswap emphasizes security, particularly in light of recent exploits resulting in approximately $55 million in losses. Swapping on the Uniswap interface is safeguarded by the official v2 contracts, ensuring a secure environment for users.

The integration of v2 on major chains by the Uniswap Interface underscores its simplicity in pool creation, liquidity provision, and swap functionality, with a continued commitment to safeguarding funds from exploits and bugs. The community has responded positively to this development, viewing it as a significant step forward.