According to CoinMeta, Helius launches on the Solana mainnet with a permission-free privacy protocol, Privacy Rings. This protocol supports SOL, SPL, and Token-2022 tokens. The types and amounts of assets transferred are encrypted, while wallet addresses remain publicly visible. Users can deposit assets into a private fund pool and initiate private transfers to any Solana wallet address, or withdraw assets back to their public balances. Transactions are executed and settled on the Solana mainnet. Developers can integrate this privacy feature into existing applications through API and SDK. Teams such as Jupiter, Backpack, and Dflow are currently integrating this protocol. A licensed version for institutions, Custom Rings, is undergoing auditing and is expected to be launched on the mainnet in the coming weeks. It will support selective disclosure, audit access, and a whitelist based on KYC. (Source: Solana Foundation)