# Solana Alpenglow Test Cluster Completes Migration

> Solana's test cluster successfully migrates before Oct 21 mainnet switch.
- Title: Solana Alpenglow Test Cluster Completes Migration · TokenPost
- Summary: Solana's test cluster successfully migrates before Oct 21 mainnet switch. Solana's Alpenglow test cluster completed consensus migration with six resets and…
- Keywords: solana, alpenglow, consensus migration, mainnet handoff, october 21, validator cluster, crypto, finance, Test, Cluster, Completes, Migration
- Source: TokenPost — https://tokenpost.com/news/technology/36015
- Published: 2026-10-20T22:00:47+00:00
- Read time: 1 min
- Topics: solana, alpenglow, consensus migration, mainnet handoff, october 21, validator cluster, crypto, finance
## Test Cluster Migration
Solana's Alpenglow community test cluster completed consensus migration with six resets and rollbacks.
## Oct 21 Mainnet Handoff
Alpenglow consensus upgrade begins with feature gate at 9:20 a.m. ET on Oct 21.
## Consensus Changes
Validators exchange votes directly to determine block finality with 80% stake threshold.
## Migration Requirements
Validators need Agave v4.3.2 client and 0.8 SOL in vote accounts for Oct 21 handoff.
## Key takeaway

Solana's Alpenglow test cluster completed consensus migration with six resets and rollbacks ahead of Oct 21 mainnet handoff.