NEO, also known as the "Chinese Ethereum," is a blockchain platform that aims to create a smarter economy by digitizing assets, automating the management of digital assets using smart contracts, and using digital identity to ensure trust in the system.

NEO's roadmap outlines its plans for achieving these goals over the next several years. Here's a breakdown of the major milestones in NEO's roadmap:

1. NEO 3.0: The next major version of NEO's blockchain, NEO 3.0, is currently under development and is expected to launch in 2022. NEO 3.0 will bring significant improvements to the platform, including increased transaction speed and capacity, enhanced security and stability, and improved smart contract functionality.

2. NEO N3: Along with the launch of NEO 3.0, NEO will introduce a new programming framework called NEO N3. This framework will make it easier for developers to build decentralized applications (dapps) on the NEO platform and will also provide new tools for developing and deploying smart contracts.

3. Interoperability: One of the key goals of NEO's roadmap is to achieve interoperability with other blockchain platforms. This will allow NEO to connect with other networks and expand its reach, making it easier for developers to build dapps that can communicate with other blockchains.

4. Digital Identity: NEO's digital identity solution, NeoID, is a critical component of its vision for a smarter economy. NeoID is designed to provide a secure, decentralized identity system that can be used to verify the identity of individuals, organizations, and assets on the NEO network.

5. Decentralized Finance (DeFi): NEO is also focused on building a robust DeFi ecosystem on its platform. This includes the development of new financial products and services, such as lending, borrowing, and trading platforms, that are powered by smart contracts.

In summary, NEO's roadmap outlines a vision for a smarter economy that is built on a secure, decentralized blockchain platform. With the launch of NEO 3.0 and the introduction of NEO N3, along with the continued development of its digital identity and DeFi solutions, NEO is well-positioned to achieve this vision and continue to grow in the years to come.