Solana Upgrades to Alpenglow, Aims for 150ms Finality
Solana's mainnet activation of Alpenglow seeks to significantly reduce transaction finality time.
Solana's mainnet activation of Alpenglow seeks to significantly reduce transaction finality time. Solana (SOL) is trading at $104.40. This is an original TLT brief based on reporting by CryptoSlate, with live market data added, as of Thu, 22 Oct 2026 12:00:05 UTC.
The upgrade could enhance Solana's transaction speed and efficiency, making it more competitive for high-frequency applications and potentially attracting more users and developers to its ecosystem.
- Solana activated Alpenglow on October 21, replacing TowerBFT consensus.
- New protocol targets 150ms for transaction finality.
- Confirmed and finalized states are now unified.
- SOL price down 2.22% in 24 hours amid broader market decline.
- Solana's Alpenglow Upgrade Set for October 21, Aims to Cut Finality to 150ms
- Solana Achieves 1,400 TPS, Eyes 150ms Finality Milestone
- Solana's Yakovenko Questions Alpenglow Design as Vote Removal Nears
- Solana's Alpenglow Upgrade Reduces Transaction Finality to 150 Milliseconds
- Solana's Alpenglow Mainnet Upgrade Activated Amidst Market Recovery
- Solana Founders Propose Removing 'Beta' Tag Post-Alpenglow Launch
- Solana Upgrades to Alpenglow, Aims for 150ms Finality — this brief
On October 21, 
Solana launched the Alpenglow upgrade on its mainnet at slot 459,653,000, marking a significant shift from the TowerBFT consensus mechanism to a new protocol designed for faster transaction finality.
The new system aims to reduce the time to finality to about 150 milliseconds and merges the confirmed and finalized states into a single condition, enhancing overall transaction efficiency.
This development comes as the broader cryptocurrency market experiences a downturn, with 
Bitcoin down 1.75% in the last 24 hours and the overall market cap at $2.81 trillion. Solana's native token, SOL, is also trading lower, currently at $104.38, a 2.22% decrease over the past day.
The Alpenglow upgrade is part of Solana's ongoing efforts to improve its network performance and scalability, which could help it compete more effectively with other high-speed blockchain platforms.
The reduction in finality time could make Solana more attractive for applications requiring rapid transaction processing, such as decentralized finance (DeFi) and non-fungible token (NFT) platforms.
Since this brief published about 1 hour ago, Solana (SOL) has moved from $104.38 to $104.40 — +0.02%.
The chart plots SOL's price: grey is the move before this brief published, the vertical dashed line marks the moment it published, the horizontal dashed line is the price then, and the coloured area is the move since — from TLT's market data (daily resolution). It shows what happened after the news, not that the news caused it; many factors move prices. Not financial advice.
At today's peer-to-peer rate, 1 SOL ≈ ₦142,720.02 (about $104.40), down 2.3% over 24 hours. The naira itself trades about 2.4% above the official rate on the P2P market, so a Nigerian buyer's effective cost differs from the headline dollar price.
Live market data
Current prices for the asset in this story — live, source-stamped, updated every 15 minutes.
Figures and sectors in this story, checked live against on-chain aggregators · October 22, 2026.
TLT reads these figures directly from on-chain aggregators (DeFiLlama, mempool.space) at build time — independent of what any outlet reported. Sector totals aggregate every protocol DeFiLlama tracks in that category. Values are live and will change.
Solana Upgrades to Alpenglow, Aims for 150ms Finality — questions & answers
What is the main goal of Solana's Alpenglow upgrade?
The primary goal is to reduce transaction finality time to approximately 150 milliseconds.
How does Alpenglow change Solana's transaction process?
It merges the confirmed and finalized states into a single condition, streamlining the process.
What is the current market context for Solana?
SOL is down 2.22% in 24 hours, with the overall crypto market also experiencing a decline.
How much is 1 Solana worth in naira today?
About ₦142,720.02 at the live peer-to-peer (P2P) USDT rate, which is what Nigerians typically trade at — equivalent to roughly $104.40. The naira price moves with both SOL's US-dollar price and the USDT/NGN rate; use our Solana in naira page for any amount.
Which outlets reported this story?
This is an original TLT brief that synthesises reporting from CryptoSlate. It is not a copy of any one article — follow the source links above for the original reporting.
Original summary — not financial advice. This is an original TLT brief that summarises a development reported elsewhere and adds live market data for context; it is not the original article and reproduces no part of it. Follow the source link above for full details. Crypto is volatile and high-risk — always do your own research.