Stellar Core Protocol 13 introduces three major features: fee bumps for flexible transaction fee management, fine-grained asset authorization for regulated assets, and multiplexed accounts with built-in memos for custodial services. The public network will vote to upgrade on June 18, requiring all ecosystem participants to update their software.
The Stellar Development Foundation announced Protocol 13, a major upgrade to Stellar Core with three new features and two optimizations. Fee bumps allow apps to cover user transaction fees without re-signing or managing sequence numbers, enabling non-custodial wallets to subsidize fees and validators to adjust minimum fees dynamically. Fine-grained asset authorization lets issuers revoke authorization while maintaining orders on the books, supporting regulated asset tokenization through atomic multi-operation transactions. Multiplexed accounts add a 64-bit memo to account addresses, solving memo-related issues for exchanges and custodial services. Two protocol optimizations improve network efficiency. Validators will vote on June 18 to upgrade the public network; all Stellar Core, Horizon, and SDK users must update compatible software before the upgrade takes effect.
