The biggest blockchain upgrades still to come in 2026

From Ethereum’s Glamsterdam to Solana’s Alpenglow, 2026’s most important developments are protocol upgrades, not price charts.

Source: cointelegraph.com

Expert opinions (1)

• Anton Erpulev, CEO & Co-Founder at PowerSun Market: Ethereum's Glamsterdam upgrade is targeting an 8-second block time, down from the current 12 seconds. That 33% reduction might sound incremental, but when you're building DeFi infrastructure that needs to compete with centralized exchanges on execution speed, those 4 seconds compound into real…