Stellar announces Bell, Protocol 30 upgrade with quantum-safe and faster-ledger work

What sources claim

• Stellar's blog post says Bell (Protocol 30) is the next Stellar upgrade, adding muxed contract addresses for smart accounts, post-quantum signature verification in smart contracts and millisecond ledger timing.
• The Stellar blog says Bell is designed to make smart accounts ready for businesses at scale and to begin work on two longer-term goals: quantum-safe signatures and faster ledgers.
• Stellar's upgrade guide says it is designed to help businesses and developers prepare for Bell, Protocol 30, with key dates, release information, preparation steps and a summary of breaking changes.

Still unresolved

• What exact activation date Protocol 30 will take effect on the Stellar mainnet, and confirmation from validators or the Stellar Development Foundation.
• Which breaking changes the upgrade guide lists for SDKs and infrastructure operators, and how they are expected to affect existing smart-account deployments.

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