Will Solana Uncap Blocks After Alpenglow? SOL USD Price Prediction For October

Recent Solana price action has been a wild card, and with the upcoming Alpenglow protocol upgrade, things can get even more volatile. With SOL crypto trading in a wide range, gaining over 20% weekly, only to return everything the week after. With Uptober coming in and traders and devs discussing the upcoming update, price action could get even messier.

Solana’s Alpenglow update is designed to make transaction finality almost instantaneous, potentially outpacing even Web2 systems like Google search speeds. At the same time, a new proposal from Jump Crypto’s Firefancer team is sparking debates about removing Solana’s long-standing block caps, a move that could take the blockchain’s throughput to unprecedented levels.

As excitement builds, the question is whether these upgrades will fuel a rally in SOL price or if the market will see another round of FUD before the next leg up.

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What is the Alpenglow Upgrade and Why Are Developers Excited?

Alpenglow is Solana’s most considerable protocol upgrade to date, receiving over 98% validator approval earlier this September. It replaces Solana’s legacy Proof-of-History and TowerBFT systems with Votor (a voting mechanism) and Rotor( a deterministic clock). These changes will drastically cut block finality times from 12.8 seconds to just 100-150 milliseconds.

JUST IN: Alpenglow, the most significant consensus upgrade proposal in @Solana's history, aiming for 150ms block finality, has passed governance. 98.27% voted 'Yes', 1.05% voted 'No', with 52% of the Network stake participating. pic.twitter.com/T2IbPW0UeT

— SolanaFloor (@SolanaFloor) September 2, 2025

This near-instant finality makes Solana one of the fastest blockchains in existence. It enables real-time use cases such as high-frequency trading, NFT gaming, and advanced DeFi applications. This position positions Solana crypto to compete directly with traditional Web2 infrastructure while maintaining decentralization and low transaction costs.

Developers also see Alpenglow as a foundation for future upgrades. Optimizing validator performance and creating a skip-vote mechanism sets the stage for dynamic block scaling, a feature that could eliminate the current 60 million compute unit (CU) cap per block. This would allow blocks to grow based on validator hardware capabilities, significantly boosting throughput.

1/ SIMD-0370, by Jump’s Firedancer team, proposes removing Solana’s fixed compute unit block limit after Alpenglow. This would eliminate static caps on block limits and have validators skip blocks they can’t process in time. Here’s what changes pic.twitter.com/xge1IViKnH

— Anza (@anza_xyz) September 27, 2025

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Could Solana Uncap Its Blocks After Alpenglow?

Currently, Solana limits block sizes to 60 million CU to prevent network overloads. However, Jump Crypto’s SIMD-0370 proposal aims to remove this fixed block limit entirely. Under this plan, powerful validators could process larger blocks, automatically skipping oversized ones if their hardware couldn’t handle them.

This would create a competitive environment where top validators continuously upgrade their infrastructure to handle more transactions, creating what developers call a “flywheel effect” of network growth. In theory, this could help Solana crypto to achieve unprecedented scalability.

THOUGHT ALPENGLOW WAS PEAK #SOLANA UPGRADE? THINK AGAIN.

Just now, Jump’s Firedancer team wants to remove @solana's block cap (SIMD-0370) – letting validators scale block size by hardware, not protocol limits.

Current cap: 60M → 100M CUs (SIMD-0286)
No cap = bigger… https://t.co/gYFprOyr6e pic.twitter.com/kXd3mdLeoO

— CryptosRus (@CryptosR_Us) September 29, 2025

However, some experts, including Anza’s head of research, Roger Wattenhofer, have expressed concerns. While Wattenhofer supports removing the cap, he warns of centralization risks, as well as the fact that capitalized validators could dominate the network.

He also highlights potential stability issues if block production becomes uneven. The decision isn’t final yet, but if approved, this proposal would go live after Alpenglow’s rollout, making Q4 2025 a critical period for Solana’s evolution.

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Solana Price Prediction for October: SOL USD Hit New Highs?

Solana SOL $207.25 3.70% Solana SOL Price $207.25 3.70% /24h Volume in 24h $5.13B Price 7d Buy with Best Wallet The price has been fluctuating in a wide range over the past year. Consolidating in an ascending triangle pattern to fake a breakout, hit the ATH resistance, and send back down in range.

Right now, the price is trading at $207.6, ranging back in the ascending triangle that was formed in March this year. Right before Bitcoin crashed and caused one of the biggest liquidation events this year, SOL was trying to touch the $260 resistance, but that didn’t last long.

(Source – Tradingview)

Despite the fakeout, on a higher time frame, we can count that as the third time the SOL price has tried to break the $260 resistance, making it weaker and weaker each time. With

Bitcoin BTC $112,131.16 2.36% Bitcoin BTC Price $112,131.16 2.36% /24h Volume in 24h $39.95B Price 7d Buy with Best Wallet gaining some traction recently and Solana fundamentals getting even more solid, we can expect that October is going to be a crucial month chart-wise.

If that happens and a breakout occurs, the Solana price will be in a position of price discovery, which leaves everything to speculation on where it will stop. Many traders shorting the breakout, believing it is the next fakeout, could create even more speculation, and a short squeeze is also on the board of possibilities, sending it up at a new ATH with ease.

RSI indicator is above the moving average, showing a lot of room for growth, supported by green MACD. Missing peace now is the volume; if volume keeps up with, and we push again with volume, this would be the clear sign for possible price discovery.

(Source – Tradingview)

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