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Alpenglow

Solana-Approves
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Solana Approves Alpenglow Upgrade to Boost Network Speed

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The Solana network has voted to approve the new Alpenglow consensus protocol. The proposal, known as SIMD-0326, passed with 98.27% support, far exceeding the required 66.67% threshold. 

According to a post by Solana Status on X, “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.” This shows strong validator participation and overwhelming support for the changes.

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

Alpenglow Introduces Votor and Rotor

The Alpenglow protocol, developed by infrastructure firm Anza, will replace Solana’s current systems: Proof-of-History and TowerBFT. Currently, Proof-of-History timestamps transactions to keep them in order, while TowerBFT manages the voting process for consensus.

The upgrade unveiled on Monday introduces two powerful components — Votor and Rotor. Votor will slash transaction finality times from over 12 seconds to just 150 milliseconds, giving users near-instant confirmations.

Rotor, which will launch later, will reduce data transfers between validators, making it ideal for high-demand sectors like DeFi and blockchain gaming.

Kyle Samani, Managing Partner at Multicoin Capital, highlighted the importance of the upgrade. “Alpenglow is the most significant rewrite of the Solana protocol to date. Its passage today paves the way for faster processing and finality, and for internet capital markets to emerge,” he said.

He added, “Alpenglow will be an important mile marker on our way to 1 million transactions per second.”

Market Impact and Next Steps

As Solana prepares to roll out the upgrade, its price has seen slight movement. According to CoinMarketCap, at the time of writing, Solana is valued at $201.38. A 0.89% dip was witnessed over the last 24 hours, with the trading volume reaching $3.69 billion.

The upcoming Alpenglow upgrade for Solana aims to enhance its speed and scalability. Hence, Solana can compete with top networks and draw in high-volume applications.

Also Read: Fonte Capital Launches First Solana ETF with Staking on AIX





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Large open bank vault door symbolizing secure bitcoin storage
GameFi Guides

Solana Community Approves Alpenglow Upgrade

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Welcome to The Protocol, CoinDesk’s weekly wrap of the most important stories in cryptocurrency tech development. I’m Margaux Nijkerk, a reporter at CoinDesk.

In this issue:

  • Solana Set for Major Overhaul After 98% Votes to Approve Historic ‘Alpenglow’ Upgrade
  • Ethereum Foundation to Unload Another 10K ETH Following SharpLink Deal
  • ‘OP_CAT Isn’t My Invention. It’s Satoshi’s,’ Says Bruce Liu as OPCAT_Labs Pushes to Reboot Bitcoin’s Code
  • Ethereum to Close Its Largest Testnet, Holesky, After Fusaka Upgrade

Network News

ALPENGLOW APPROVED BY SOLANA COMMUNITY: The Solana community voted overwhelmingly in favor of the long-awaited Alpenglow upgrade, bringing the network one step closer to the most significant technical transformation in its history. According to Solana Status on X, 98.27% of SOL stakers that voted approved the proposal, with only 1.05% voting against and 0.36% abstaining. In total, 52% of the network’s stakers participated in the vote. The upgrade introduces a new consensus protocol designed to dramatically improve transaction finality and network efficiency. At the heart of Alpenglow are two new components, Votor and Rotor, which will replace Solana’s existing systems, Proof-of-History and TowerBFT. Currently, Proof-of-History timestamps transactions to preserve their order without slowing the network, while TowerBFT handles the voting process among validators. Alpenglow will overhaul both systems. Votor will slash transaction finality times from over 12 seconds to around 150 milliseconds, delivering near-instant confirmation for users. Rotor, scheduled for a later rollout, will minimize data transfers between validators, a crucial improvement for high-demand applications such as decentralized finance (DeFi) and blockchain-based gaming.With approval secured, Solana is now preparing to implement the upgrade, a milestone expected to unlock greater speed, resilience, and scalability across its ecosystem. — Margaux Nijkerk Read more.

EF TO SELL 10K ETH OVER NEXT FEW WEEKS: The Ethereum Foundation (EF) shared in a post on X on Tuesday that it plans to sell 10,000 ETH through centralized exchanges over the next several weeks to support work toward research & development, ecosystem grants and related donations. According to CoinMarketCap, the ETH will amount to roughly $43 million at Tuesday’s prices. “Conversions will take place over multiple smaller orders, rather than as a single large transaction,” the EF wrote in the post on X.The news follows the EF’s rollout of a new treasury policy in June that caps annual operational spending (opex) at 15%, establishes a multiyear reserve buffer and sets a gradual pace toward even leaner spending long-term. The foundation sold an additional 10,000 ETH to SharpLink Gaming in July, making the online casino marketing firm the first publicly traded company to buy ETH from a key firm in the network’s ecosystem. — Margaux Nijkerk Read more.

A CHAT WITH BRUCE LIU ON OP_CAT: Without OP_CAT, Bruce Liu says Bitcoin is as “useful as a jumbo jet without wings” capable of much more than it’s allowed to do, but stuck on the ground while Ethereum and Solana soar. Liu, the founder of OPCAT_Labs, says a single opcode, OP_CAT, could transform bitcoin from static digital gold into programmable money that rivals other layer-1 chains. OP_CAT is a long-disabled opcode in Bitcoin’s code that, if re-enabled, would allow developers to concatenate data in scripts and unlock new possibilities, from vaults and covenants to decentralized exchanges and zero-knowledge proofs. The Bitcoin blockchain, if OP_CAT was re-enabled, would be as programmable as Ethereum or Solana, said Liu. “OP_CAT is not new code. It was never deleted, just commented out and disabled. We are not adding my opcode or somebody else’s. It’s Satoshi’s,” Liu told CoinDesk during an interview on the sidelines of BTC Asia in Hong Kong. — Sam Reynolds Read more.

HOLESKY SUNSET IS COMING AFTER FUSAKA UPGRADE: A fresh slate of Ethereum testnets is replacing Holesky, the once-massive staging ground now set for shutdown after two years of service.The wind-down will occur two weeks after the Fusaka upgrade is finalized later this year, at which point client and infrastructure teams will cease providing support. Fusaka is set to make Ethereum rollups cheaper and faster by spreading out the “data storage work” more evenly across validators. Holesky went live in 2023 to stress-test Ethereum’s proof-of-stake machinery at scale. It quickly became the largest public testnet, providing thousands of validators with a platform to trial upgrades before they were deployed on the mainnet. Major milestones, such as the Dencun and Pectra upgrades — which lowered transaction costs and upgraded validator efficiency, among other features — were run through Holesky first. However, cracks began to appear as the network aged. Holesky encountered “inactivity leaks” after Pectra’s activation in early 2025, a term referring to validators going offline in large numbers, which created a significant backlog for those attempting to exit. The result was months-long queues that made it impractical to test the full validator lifecycle. For developers needing fast feedback loops, Holesky had become more of a roadblock than a tool. — Shaurya Malwa Read more.

In Other News

  • Digital asset investment firm Galaxy Digital (GLXY) is bringing its stock onto blockchain rails as equity tokenization gains steam.The Nasdaq-listed company is working with blockchain firm Superstate to make its Class A common stock available as tokens on the Solana network through Superstate’s Opening Bell platform. The arrangement preserves the full rights of SEC-registered equity while allowing investors to hold and transfer shares on-chain, the firms said. Tokenization of traditional assets has gained traction across the financial sector as firms experiment with moving equities, bonds and money-market funds onto blockchain infrastructure. A slew of tokenized equity products hit the market in the past few months predominantly for EU investors, including by Robinhood, Gemini with Dinari and xStocks by Kraken and Backed Finance. However, some offerings drew concerns such as limited shareholder rights and fragmented regulations. Unlike synthetic or wrapped tokenized stocks that operate without issuer involvement, Galaxy’s shares are issued directly on-chain and tracked by Superstate as a transfer agent, recording changes to the shareholder register instantly as tokens move between verified wallets. This approach seeks to combine compliance with blockchain features such as fast settlement, transparency and around-the clock-availability, the firms said. — Kristzian Sandor Read more.
  • Ondo Finance launched its tokenized equity platform dubbed Ondo Global Markets, offering non-U.S. investors access to more than 100 U.S. stocks and exchange-traded funds (ETFs) on-chain. The tokenized equities, first announced in February, have gone live on Ethereum and are backed by securities held by U.S.-registered broker-dealers, the firm said.The offering includes crypto token versions of Apple (AAPL), Nvidia (NVDA) and the QQQ ETF among others. Investors in Asia-Pacific, Europe, Africa and Latin America can mint and redeem shares around the clock during trading days, with access to underlying exchange liquidity. The service is not available for U.S. users. The tokens are designed to move freely between wallets, exchanges and decentralized finance (DeFi) protocols. The firm has also partnered with BitGo, Ledger, Chainlink and other infrastructure providers to support the rollout.— Kristzian Sandor Read more.

Regulatory and Policy

  • European Central Bank (ECB) President Christine Lagarde urged European Union (EU) lawmakers to impose stringent requirements and safeguards on foreign stablecoins.
  • Lagarde argued they should comply with the bloc’s regulatory standards before operating on EU soil, she said in a speech at a European Systemic Risk Board (ESRB) conference in Frankfurt. The ECB president cautioned that during a stablecoin run, investors would be more likely redeem in jurisdictions with stronger protections, such as the EU, where Markets in Crypto-Assets (MiCA) regulation prohibits redemption fees, potentially depleting local reserves. “The risk of liquidity mismanagement across jurisdictions is one we have seen before. Banking groups, for example, are already required to ensure that reserves are available in the part of the group where and when they are needed,” Lagarde said. — Jamie Crawley Read More.
  • The U.S. government has begun using blockchains to disseminate key economic data, starting with the U.S. Department of Commerce’s release of gross-domestic product (GDP) numbers, which was described as a “proof of concept” for doing more in the future. “We are making America’s economic truth immutable and globally accessible like never before, cementing our role as the blockchain capital of the world,” Secretary of Commerce Howard Lutnick said in a statement that announced the new approach to distributing the data. In a deliberate effort not to pick blockchain favorites, the department put out last week’s data on Bitcoin, Ethereum, Solana, TRON, Stellar, Avalanche, Arbitrum One, Polygon PoS and Optimism, identifying the transaction hashes for each in its announcement. The agency said it also sent the data through Chainlink and Pyth and noted that exchanges Coinbase, Gemini and Kraken helped out.— Jesse Hamilton Read more.

Calendar

  • Sept. 22-28: Korea Blockchain Week, Seoul
  • Oct. 1-2: Token2049, Singapore
  • Oct. 13-15: Digital Asset Summit, London
  • Oct. 16-17: European Blockchain Convention, Barcelona
  • Nov. 17-22: Devconnect, Buenos Aires
  • Dec. 11-13: Solana Breakpoint, Abu Dhabi
  • Feb. 10-12, 2026: Consensus, Hong Kong
  • Mar. 30-Apr. 2: EthCC, Cannes
  • May 5-7, 2026: Consensus, Miami



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Solana’s Alpenglow upgrade vote passes with 98% approval
NFT Gaming

Solana’s Alpenglow upgrade vote passes with 98% approval

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The Solana community has approved Alpenglow, a highly anticipated upgrade designed to ramp up the blockchain network’s scalability.

Summary

  • Solana community has passed the governance vote for Alpenglow upgrade with 98.27% in favor.
  • Alpenglow is a consensus mechanism upgrade that will slash transaction finality from 12 seconds to 150ms.

Solana (SOL) stakers approved with over 98% of the vote the governance proposal dubbed Alpenglow, with the historic move setting in motion the journey towards a consensus algorithm overhaul for the network.

According to Solana Status, the community greenlit the Alpenglow proposal with 98.27% of the vote.

Onchain data show only 1.05% of the votes were against, while 0.69% abstained. In total, 52% of stake participated in the vote.

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

More about Alpenglow

The proposal, SIMD 326, has attracted a lot of bullish sentiment from ecosystem participants. 

Mainly, it’s down to Alpenglow’s key technical feature – a consensus mechanism aimed at bringing a 100x speed boost to transaction processing on Solana. If implemented, the upgrade will see Solana’s transaction latency drop from 12 seconds to 150ms.

Alpenglow seeks to achieve this via two consensus aspects – Votor and Rotor.

These will replace the current Proof-of-History and Tower Byzantine Fault Tolerance, or TowerBFT. On the Solana network, Proof-of-History allows for timestamping of transactions to ensure blockchain security and efficiency, while TowerBFT powers the validator process.

The Alpenglow upgrade will activate Votor to slash transaction finality times, replacing TowerBFT. Meanwhile, Rotor is set to replace PoH’s timestamping system, implementing a new data dissemination model that drastically cuts the time nodes take to agree on network status.

Anza, a Solana-focused development firm, unveiled the proposal in May 2025.

While a timeline for mainnet rollout is yet to be announced, the expectation is that as a major protocol upgrade, Alpenglow will catapult Solana to the next level of adoption across payments, trading, and gaming, among other use cases.





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SOL Futures Are More Popular Than Ever as U.S. Inflation Report Looms
Crypto Trends

Solana Set for Major Overhaul After 98% Votes to Approve Historic ‘Alpenglow’ Upgrade

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The Solana community voted overwhelmingly in favor of the long-awaited Alpenglow upgrade, bringing the network one step closer to the most significant technical transformation in its history.

According to Solana Status on X on Monday, 98.27% of SOL stakers that voted approved the proposal, with only 1.05% voting against and 0.36% abstaining. In total, 52% of the network’s stakers participated in the vote.

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 upgrade introduces a new consensus protocol designed to dramatically improve transaction finality and network efficiency. At the heart of Alpenglow are two new components, Votor and Rotor, which will replace Solana’s existing systems, Proof-of-History and TowerBFT.

Read more: What Is Block Finality?

Currently, Proof-of-History timestamps transactions to preserve their order without slowing the network, while TowerBFT handles the voting process among validators. Alpenglow’s enhancements will overhaul both systems.

Votor will slash transaction finality times from over 12 seconds to around 150 milliseconds, delivering near-instant confirmation for users. Rotor, scheduled for a later rollout, will minimize data transfers between validators, a crucial improvement for high-demand applications such as decentralized finance (DeFi) and blockchain-based gaming.

With the approval secured, Solana now prepares to implement the upgrade, a milestone expected to unlock greater speed, resilience, and scalability across its ecosystem.

Read more: Solana Targets Near-Instant Finality as Alpenglow Upgrade Heads to Vote





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DeFi Dev Corp lifts Solana treasury to $317m with new purchase
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Will Alpenglow upgrade spark rally?

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Summary

  • The Solana price prediction for today is impacted by the recent Alpenglow upgrade which will hasten block times.
  • A breakout above $215 would confirm bullish continuation, targeting $250 in the short term, with projections extending toward $300+ if momentum persists.
  • A failure below $180 would turn the outlook bearish, opening the way to $165–$170.

Solana (SOL) is trading under $200, consolidating within an ascending channel after weeks of consistent gains. The upcoming Alpenglow upgrade to the network has seen almost unanimous support from the community, leading to a positive short-term Solana price prediction.

The positive sentiment stems from the fact that the ugprade will shorten block times and hasten transaction throughput for Solana.

Solana price prediction based on current data

SOL is now trading jus a few cents below $200, with a fierce battle now underway in this crucial band of psychological support/resistance. The token is trading in an ascending channel, with support near $180 and resistance around $215.

SOL price levels on the 1D chart | source: crypto.news

While trading has cooled off a little, the Alpenglow consensus upgrade has contributed to positive sentiment for Solana due to the expectation of much faster block creation and transaction speed.

Alpenglow impact on Solana price

If Solana (SOL) breaks above $215, analysts see a path toward $250 by October. Technicals favor continuation higher, with whale accumulation and strong DeFi activity supporting the trend. Solana’s total value locked (TVL) has risen steadily in recent weeks, reflecting increasing capital flowing into its ecosystem.

The bullish case is also driven by sentiment around Alpenglow. If the upgrade delivers tangible improvements in performance and reliability, the market may view Solana as a stronger competitor to Ethereum, opening the door for extended gains beyond $250. In this scenario, longer projections point to a potential move toward $300–$350 as confidence builds.

Risk of failure for SOL

The key near-term risk is a breakdown of support at $180. Failure to hold this level could lead to a retracement deeper into the ascending channel, with downside targets near $165–$170. Broader market weakness, particularly if Bitcoin or Ethereum lose ground, would likely amplify selling pressure.

There is also the possibility of disappointment around Alpenglow if adoption and developer migration fail to meet expectations. Without meaningful follow-through, the upgrade may not be enough to sustain bullish momentum, leaving Solana vulnerable to further consolidation or correction.

Current Solana price prediction

For now, Solana’s key range is $180–$215.

  • A breakout above $215 would confirm bullish continuation, targeting $250 in the short term, with projections extending toward $300+ if momentum persists.
  • A failure below $180 would turn the outlook bearish, opening the way to $165–$170.

The current Solana outlook is cautiously bullish. The expectation is that volatility will rise around the Alpenglow upgrade, with direction hinging on whether technical improvements can outweigh broader market weakness.

Disclosure: This article does not represent investment advice. The content and materials featured on this page are for educational purposes only.



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99% In Favor Of Solana Alpenglow Upgrade Lowering TX Finality
Crypto Trends

99% In Favor Of Solana Alpenglow Upgrade Lowering TX Finality

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Solana’s Alpenglow proposal, which seeks to slash the blockchain’s transaction finality to around 150 milliseconds, is expected to proceed after 99% have voted in support of it, with just two days left for voting. 

The Alpenglow consensus protocol was unveiled in May by Anza — a Solana development firm spun out of Solana Labs — and has been described by ecosystem members as the biggest protocol upgrade in Solana’s history. 

It would slash the current finality from 12.8 seconds to just 150 milliseconds, a near 100-fold speed increase that could put it on par with current internet infrastructure.

The governance process for Alpenglow kicked off on Aug. 21, and over 99.6% of votes cast so far have said “yes” to the proposal, Staking Facilities data shows. 

Voting will close at epoch 842, which is expected to be complete on Tuesday at 1 pm UTC, according to Solanabeach.io. 

The quorum threshold of 33% of votes has also been reached, meaning Alpenglow is now almost certain to pass if the current voter trajectory remains the same. 

Voting breakdown for the Alpenglow consensus protocol proposal: Source: Staking Facilities

A successful implementation of Alpenglow would strengthen Solana’s case as one of the fastest layer-1 blockchains, surpassing Sui — which has transaction finality around 400 ms — and potentially even outperform standard Google searches, which return results in roughly 200 ms.

Transaction speed has been a key selling point for layer-1 blockchains seeking to compete with Bitcoin and Ethereum, the latter of which includes transactions in around 12 or 13 seconds but doesn’t reach finality until roughly 12 minutes later.

Alpenglow could expand Solana’s use cases far beyond payments, trading and gaming, Anza researchers Quentin Kniep, Kobi Sliwinski and Roger Wattenhofer said in May when the white paper was released.

“A median latency of 150 does not just mean that Solana is fast — it means Solana can compete with Web2 infrastructure in terms of responsiveness, potentially making blockchain technology viable for entirely new categories of applications that demand real-time performance.”

Alpenglow includes Votor and Rotor 

The first of Alpenglow’s key components is Votor, which would process voting transactions and block finalization logic, aiming to finalize blocks in a single round if 80% of the stake is participating, and in two rounds if only 60% of the stake is responsive. It would replace TowerBFT.

The second is Rotor, a data dissemination protocol that would replace Solana’s proof-of-history timestamping system and aim to reduce the time it takes for all nodes to agree on the network state.

1/ Rotor is Solana’s new block propagation protocol introduced in the Alpenglow upgrade. It’s a single layer of relayers that replaces Turbine’s multi-hop, delivering blocks faster and more uniformly across the network 🧵 pic.twitter.com/0KhpLuLe8u

— Anza (@anza_xyz) August 13, 2025

Alpenglow won’t fix Solana’s network outages

The project’s white paper noted that switching to Alpenglow wouldn’t completely shield Solana from the network outages that it has experienced in the past.

Related: Solana lobby group adds $500K to Roman Storm’s defense war chest

Solana currently only has one production-ready client, Agave, meaning any security vulnerability in Agave can disrupt the entire Solana network.

However, a new independent validator client called Firedancer is set to launch on Solana’s mainnet later this year, which will provide client diversification for the network.

Magazine: 3 people who unexpectedly became crypto millionaires… and one who didn’t





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Solana news
GameFi Guides

Solana Starts Community Voting Phase On Alpenglow

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Trusted Editorial content, reviewed by leading industry experts and seasoned editors. Ad Disclosure

The most ambitious consensus overhaul foe Solana to date—SIMD-0326, nicknamed “Alpenglow”—has officially moved into the community voting window, a three-epoch process that began at the start of Epoch 840 and will conclude at the end of Epoch 842.

The proposal rewrites Solana’s core consensus, replacing Proof-of-History plus TowerBFT with a modern architecture centered on a direct-vote finality engine (“Votor”). The authors say Alpenglow significantly reduces latency (from 12.8 seconds under TowerBFT to as low as 100–150 milliseconds) while eliminating heavy vote-gossip traffic through off-chain messaging and signature aggregation.

Solana Validators Begin Deciding Future Of Alpenglow

Governance mechanics for SIMD-0326 are unusually explicit. Vote tokens are claimable by validators according to captured stake weights, using a Merkle distributor tool; tokens may be sent to “Yes,” “No,” or “Abstain” accounts. Passage requires a supermajority: the sum of Yes votes is equal to or greater than 2/3 of the total sum of Yes + No votes,” with a quorum of 33% in which abstentions count toward quorum but not toward the Yes/No denominator.

On day one of the window (Epoch 840), early snapshots show modest—but distinctly positive—participation. Multiple market data posts report turnout near 11.5%, with roughly 11.3% of stake signaling “Yes” and negligible “No.” Because the overwhelming share of stake has not yet cast ballots, this should be treated as an initial reading rather than a trend. A public tally dashboard is being maintained by Staking Facilities.

SIMD-0326 vote status | Source: Staking Facilities

Alpenglow’s design changes go beyond speed. The protocol introduces certificate-based notarization and finalization, aggregates validator votes off-chain to reduce overhead, and rebalances incentives around voting. Notably, the proposal replaces per-slot on-chain vote fees with a fixed “Validator Admission Ticket” (VAT) currently set at 1.6 SOL per epoch and burned—an economic continuity measure intended to keep cost structures comparable to today’s while votes move off-chain.

“Before each epoch, each validator must pay a fixed fee—initially set to 1.6 SOL per epoch,” the authors write, adding that the figure mirrors roughly 80% of current on-chain voting costs. Forum participants have already begun debating whether a flat VAT raises entry barriers for smaller operators, underscoring that the governance discussion is as much about economics as it is about protocol mechanics.

Timing matters for operators and tokenholders following the vote. Solana epochs are approximately two days in length, so a three-epoch voting window implies about six days from start to finish. The network entered Epoch 840 on August 27, 2025, which places the expected end of the voting window around September 2, 2025, when Epoch 842 concludes.

If the supermajority threshold is reached, Alpenglow would clear governance, with subsequent activation depending on client readiness and the standard Solana release process. For now, the focus is on turnout. With ~90% of stake yet to be tallied in the opening snapshot, every validator ballot over the coming epochs will carry outsized weight in determining whether Solana pursues ~150-millisecond finality as its next consensus horizon.

At press time, SOL traded at $215.

SOL surpasses key resistance, 1-week chart | Source: SOLUSDT on TradingView.com

Featured image created with DALL.E, chart from TradingView.com

Editorial Process for bitcoinist is centered on delivering thoroughly researched, accurate, and unbiased content. We uphold strict sourcing standards, and each page undergoes diligent review by our team of top technology experts and seasoned editors. This process ensures the integrity, relevance, and value of our content for our readers.



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Shaurya Malwa
Crypto Trends

Solana Targets Near-Instant Finality as Alpenglow Upgrade Heads to Vote

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Solana developers are pushing a major consensus overhaul with the Alpenglow proposal, now in the validator voting stage.

Just over 10% of validators have backed the upgrade as of European morning hours on Thursday, a tracker shows, with over 88% of eligible participants yet to cast their choice.

If passed, it would replace Proof-of-History and TowerBFT with a faster, more resilient design centered on two new components: Votor and Rotor.

Proof of history is Solana’s existing consensus mechanism. It timestamps transactions, allowing validators to determine the correct order without wasting time on syncing (which creates a slower network). TowerBFT is the network’s voting system. Validators use previous votes as a guide, helping them quickly agree on the next block while resisting attacks.

The big draw in the new consensus proposal Votor, which would cut the time it takes for a transaction to be finalized from more than 12 seconds to around 150 milliseconds, making network confirmations feel effectively instant for users.

Rotor, planned for a later stage, aims to make the network more efficient by reducing the number of times data needs to be transferred between validators — an upgrade designed to support high-activity applications, such as DeFi and gaming.

Alpenglow also introduces a “20+20” resilience model, which promises to keep the chain running even if 20% of validators are adversarial and another 20% are offline.

The proposal frames this as a step toward achieving faster speeds while enhancing security and fairness for validators.



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Solana news Alpenglow
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New Solana Consensus ‘Alpenglow’ Enters Community Vote

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Trusted Editorial content, reviewed by leading industry experts and seasoned editors. Ad Disclosure

Solana core developers have pushed a sweeping consensus overhaul, “Alpenglow” (SIMD-0326), into the ecosystem’s formal governance track, setting up a validator vote that, if approved, would replace TowerBFT and re-architect finality and validator incentives on mainnet-beta. The proposal’s authors—Quentin Kniep, Kobi Sliwinski, and Roger Wattenhofer—describe Alpenglow as “a major overhaul of Solana’s core consensus protocol,” designed to supplant “the existing Proof-of-History and TowerBFT mechanisms” with a design that targets block finalization “as low as 100–150 milliseconds.”

Voting Process For Solana ‘Alpenglow’ Starts

The governance post lays out a three-phase timeline: discussion through epochs 833–838, stake-weight capture in epoch 839, and a binding vote across epochs 840–842 using claimable vote tokens sent to “Yes,” “No,” or “Abstain” accounts. Passage hinges on a supermajority threshold: Yes must be at least two-thirds of Yes+No, with a 33% quorum that counts abstentions. As of today, Solana is in epoch 834, making the discussion window active and the vote window scheduled several epochs out.

At the heart of Alpenglow is Votor, a direct-vote, leader-pipelined finality protocol that shifts Solana away from on-chain vote transactions and heavy gossip toward off-chain vote exchange with local signature aggregation. Validators vote to notarize or skip blocks; leaders aggregate those votes eight slots later and submit compact proofs. The authors argue this design cuts latency dramatically and reduces bandwidth, while a “20+20” liveliness model aims to tolerate up to 20% adversarial and 20% unresponsive validators without halting progress. “Alpenglow… enables much lower latency, improved fault tolerance, and generally greater protocol efficiency,” the post asserts.

The upgrade also rewires validator economics. Because voting moves off-chain, the SIMD introduces a Validator Admission Ticket (VAT), a fixed per-epoch fee “initially set to 1.6 SOL per epoch,” burned to maintain an economic barrier roughly comparable to today’s on-chain vote-fee regime. Validators are “required to cast exactly one valid vote per slot”; conflicting votes are detectable, and persistent non-participation renders a validator ineligible for rewards and at risk of removal from the active set.

Leaders receive compensation equal to the per-slot vote rewards of the votes they aggregate, plus a flat bonus when they include fast-finalization/finalization certificates. In a follow-up thread post, Wattenhofer explains the 1.6 SOL figure as approximately 80% of current vote costs to ensure no operator is worse off at the “AlpenSwitch.”

If adopted, Alpenglow would make a visible semantic change at the client layer: the authors note that optimistic confirmation would be superseded by actual finality at sub-second timescales. The stated aim is to bring confirmation latencies in line with Web2 user expectations while tightening safety guarantees that were harder to formalize under TowerBFT. The proposal’s documentation points readers to a 50+ page white paper and independent analyses, but emphasizes that the initial rollout focuses on finalization and voting; a new data dissemination protocol, Rotor, would follow in a separate SIMD.

Governance mechanics for the vote mirror Solana’s prior advisory processes but with higher stakes. Vote tokens will be claimable via an adapted Merkle distributor; validators then send those tokens to the designated choice accounts during the epoch-bounded window. The foundation’s governance post states, “If the sum of Yes votes is equal to or greater than 2/3 of the total sum of Yes + No votes, the proposal will pass,” and “Abstain” contributes to quorum but not to the supermajority tally. Stake weights and a public tally script will be published for independent verification.

Community feedback has quickly homed in on operational risk and rollout discipline. One validator-oriented response urges the SIMD authors to embed “a testing, deployment and fallback plan” before a mainnet decision, likening the scope of change to other industry-scale protocol transitions. Others probe specifics around the VAT level, transaction expiry in a post-PoH world, leader equivocation handling, and effects on MEV auctions and client UX when slices of a block are ignored under certain failure modes. These threads underscore that while the performance headline—150 ms finality—is eye-catching, the vote will likely hinge on the comfort level with safety proofs, incentive edge-cases, and the migration path.

At press time, SOL traded at $181.89.

SOL rejected at the 0.786 Fib, 1-week chart | Source: SOLUSDT on TradingView.com

Featured image created with DALL.E, chart from TradingView.com

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Solana validators vote on Alpenglow proposal to cut finality

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Solana’s validator community has begun voting on SIMD-0326, the Alpenglow proposal, a upgrade designed to replace the current TowerBFT consensus mechanism with a faster, simpler, and more resilient system. 

Summary

  • Solana validators are voting on SIMD-0326, the Alpenglow upgrade.
  • Proposal cuts block finality from 12.8s to 100–150ms using off-chain voting.
  • Community split on the 1.6 SOL Validator Admission Ticket and testing risks.

If approved, Alpenglow proposal would reduce block finality from 12.8 seconds to as little as 100–150 milliseconds, putting Solana’s (SOL) performance closer to Web2 infrastructure.

How Alpenglow works

Developed by Anza, a Solana-focused research team, Alpenglow introduces direct voting, signature aggregation, and a Validator Admission Ticket fee to streamline participation and cut bandwidth costs. Validators will trade votes off-chain rather than on-chain, with cryptographic proof attesting to consensus. 

The system is built around Votor, a lightweight voting protocol that finalizes blocks in one or two rounds depending on validator support. Blocks can be certified in a single round with at least 80% approval or in a second round with a 60% threshold. This design reduces network load by eliminating gossip-heavy traffic and formalizes safety guarantees absent under TowerBFT.

The proposal also introduces a fixed 1.6 SOL VAT per epoch, burned to offset inflation while preserving economic barriers to participation. This fee replaces direct vote transaction costs, with supporters arguing it reduces validator expenses by around 20%. Critics, however, warn it may raise entry barriers for smaller operators.

Alpenglow further adopts a “20+20” resilience model, allowing the network to stay live even with 20% adversarial validators and another 20% unresponsive. Future improvements include replacing Solana’s Turbine data propagation system with Rotor, a more efficient protocol that will require separate governance approval.

Debate and governance process

Community sentiment around Alpenglow is split between optimism and caution. Its proponents emphasize how it can streamline validator operations, cut down on finality delays, and facilitate use cases like high-frequency trading and gaming that demand almost instantaneous confirmation. Validators such as Firedancer commended it for eliminating long-standing TowerBFT complications.

Testing, deployment risks, and economic effects are the main areas of concern. While some validators suggest tiered VAT models with stake size-based SOLs ranging from 0.5 to 5, others question how off-chain voting will manage Jito auction procedures without proof-of-history and transaction expirations.

Voting runs from epochs 833 to 842, with participation requiring a two-thirds majority of Yes over No votes and a quorum threshold of 33%, including abstentions. Results will determine whether Solana proceeds with one of its most ambitious consensus overhauls to date.



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