The Solana Foundation plans to activate the Alpenglow consensus upgrade at the start of epoch 1064. The goal is to reduce transaction finality from approximately 12.8 seconds to 150 milliseconds.
XRP Ledger published details of a critical bug in its payment engine that could have allowed specially crafted offers to create and spend XRP beyond the intended limit. The fix is included in xrpld 3.4.1.
The Zano project released an emergency version that rolls the chain back to block 3,833,000 from August 26, 2026, before Hard Fork 6 was activated. Approximately one month of transactions has been removed from the canonical history.
The U.S. CFTC updated its FAQ for registered entities dealing with tokenized forms of permitted customer-fund investments and blockchain recordkeeping.
Zcash has published the NU7 upgrade timeline. Testnet activation is scheduled for October 6, with target mainnet activation on November 5, 2026, although the final decision has not yet been made.
The U.S. SEC has issued a conditional temporary exemption intended to allow limited trading of tokenized NMS stocks on selected blockchain platforms.
Ethereum Foundation’s Protocol cluster has set an internal goal of preparing Ethereum L1 for post-quantum threats by December 2029. However, this is not a binding schedule for the entire network.
Solana activated Transaction v1 on the mainnet on September 15. The new format increases the maximum size of a single transaction to 4,096 bytes but requires infrastructure support.
The U.S. SEC wants to modernize rules for registered transfer agents. The proposal expressly covers electronic and blockchain records, as well as tokenized securities.