TLDR
Solana validators approved the Alpenglow upgrade with 98.27% support, reducing transaction finality from 12.8 seconds to 100-150 milliseconds SOL price jumped 6.5% to $209 following the upgrade approval, outperforming Bitcoin and Ethereum The upgrade replaces TowerBFT and Proof-of-History with new Votor and Rotor systems for faster processing Analysts project SOL could reach $215 by late September and $250 by year-end Net inflows of $14.06 million on September 2 show whale accumulation ahead of potential breakoutSolana validators have approved the Alpenglow upgrade, marking a major milestone for the blockchain network. The governance vote concluded Tuesday with overwhelming support from the validator community.
According to Solana Foundation data, 98.27% of validators voted in favor of the proposal. Only 1.05% opposed the upgrade, while 0.69% abstained from voting.
The community governance process for SIMD-0326: Alpenglow is complete. The proposal has passed:
98.27% voted Yes
1.05% voted No
0.69% voted Abstain
52% of stake cast a vote
— Solana Status (@SolanaStatus) September 2, 2025
The governance process exceeded the required 33% quorum threshold. Validators cast their votes on SIMD-0326, the Solana Improvement Proposal created by research firm Anza.
Revolutionary Speed Improvements
The Alpenglow upgrade will cut transaction finality times from 12.8 seconds to just 100-150 milliseconds. This represents a dramatic performance improvement for the network.
The upgrade introduces two new components: Votor and Rotor. These systems will replace the current TowerBFT consensus mechanism and Proof-of-History framework.
Votor operates as a direct-vote system that can finalize blocks through single or dual-round processes. Rotor handles validator timestamping and reduces data transfer requirements.
“The biggest difference users will feel right away will be a reduction in confirmation latency to approximately 150–200 milliseconds,” said Max Resnick, lead economist at Anza.
The new system eliminates bandwidth-heavy gossip traffic between validators. Instead, validators exchange votes directly through cryptographic aggregates.
This design reduces computational overhead while improving bandwidth efficiency. The upgrade also strengthens security guarantees across the network.
Economic Model Changes
Alpenglow modifies Solana’s economic structure by moving validator voting off-chain. Validators will no longer submit vote transactions for every slot.
Instead, each validator will pay a Validator Admission Ticket costing 1.6 SOL per epoch. This change removes voting-related fees and reduces bandwidth usage.
The new model maintains economic barriers that help secure the validator set. These barriers ensure network integrity while reducing operational costs.

SOL price climbed 6.5% to $209 following the upgrade announcement. This increase outperformed Bitcoin’s 2.1% gain and Ethereum’s 0.6% recovery during the same period.
Trading data from Coinglass shows $14.06 million in net inflows on September 2. This marks the strongest positive reading in several weeks.
SOL/BTC is lining up a golden cross!
This is the same setup that preceded 1,000%+ rallies in 2021 and 2023.
With $SOL holding above key EMAs and treasury demand adding ~$3B, charts point to $300.
Will Solana lead the next altseason leg? pic.twitter.com/BrFfKK93CH
— Onur 🍌🦍 (@0xc06) September 2, 2025
The inflow data suggests whale accumulation ahead of potential price movements. Large investors appear confident in Solana’s technical improvements.
Analysts at MEXC Research project SOL could reach $215 by late September. They also target $250 by year-end, citing technical improvements and growing institutional holdings.
Institutional treasury holdings have surpassed $1.7 billion according to recent data. This growing institutional presence supports longer-term price projections.
The Alpenglow upgrade will launch on testnet by December 2025 during the Solana Breakpoint conference. A full mainnet deployment is scheduled for the first quarter of 2026.
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