Anza activates Alpenglow on community test cluster
Anza has activated the new consensus mechanism Alpenglow on a public community test cluster. Validators can sign up and test the protocol ahead of the mainnet rollout.
What happened
Anza has activated Alpenglow on a public community test cluster and is inviting more validators to participate. Signup runs through a form linked in the official Anza post on X.
Alpenglow is the new consensus mechanism that will replace TowerBFT and Proof-of-History. Background whitepaper and technical details are available in the Alpenglow announcement on the Anza blog.
What Alpenglow changes
The switch affects two core components:
- Votor replaces TowerBFT as the voting mechanism for block finality.
- Rotor replaces Proof-of-History as the mechanism for block distribution.
The target: block finality drops from around 12.8 seconds to 100–150 milliseconds. Deeper explanation of the mechanics in the pillar article Alpenglow: Solana’s New Consensus Mechanism Explained.
What the community tests deliver
The test cluster is the final phase before a potential mainnet rollout. Validators test:
- Stability of Votor under realistic validator distribution.
- Latency behaviour of Rotor at production-like block throughput.
- Edge cases: validator outages, network partitions, re-org behaviour.
Results from this phase feed into mainnet preparation. Anza has not announced a specific mainnet date.
Not financial advice. This article describes technical protocol tests.