Key Takeaways:
- Stellar validators vote July 8 on Protocol 27 Zipper upgrade
- Native authentication delegation enables social recovery and multisig improvements
- Security patch fixes replay vulnerability in Soroban smart contracts
Back
Stellar validators to vote on Protocol 27 Zipper upgrade July 8
Stellar network validators will vote July 8 on Protocol 27 Zipper, an upgrade introducing native authentication delegation and a security fix for Soroban smart contracts.
The feature allows one Stellar account to authorize another to act on its behalf directly at the network level, eliminating complex workarounds developers previously relied on, the Stellar Development Foundation said in its technical proposal.
The upgrade enables social recovery for wallets, letting users regain access to funds through pre-approved trusted accounts — a feature that could reduce incidents related to lost private keys. It also supports delegated signing permissions under configurable rules and simplifies multisig configurations by reducing intermediate transaction steps. The technical patch resolves a replay vulnerability in Soroban by implementing address-bound credentials, preventing valid authorizations from being copied and reused in different contexts.
Protocol 27 functions as a transition phase toward Protocol 28, which will introduce contract-based authentication for standard Stellar accounts. If validators approve the proposal, the change will execute immediately on testnet before general deployment, requiring developers building on Stellar to update nodes and software tools for compatibility with the new consensus rules. The vote represents the first major protocol change for Stellar since the Soroban smart contract platform launched on mainnet.
The simplification of the authorization process could reduce on-chain data size and lower operational costs per transaction, according to the proposal. Stellar's upgrade follows a broader push among L1 blockchains to improve account abstraction and developer tooling as competition for DeFi activity intensifies across Ethereum and Solana. XLM, the network's native token, has not yet shown a price reaction to the vote, with trading activity focused on the technical implications for developers building on the Stellar ecosystem.
This article is for informational purposes only and does not constitute investment advice.
