Polygon's Ithaca hard fork activates at Heimdall block 50,185,000, adding automatic recovery and transaction safeguards after a known chain-stall risk.
Cardano enacted its community-ratified van Rossem hard fork, bringing Protocol Version 11 and new Plutus capabilities to mainnet after a July 18 epoch boundary.
Stellar activated Protocol 27, called Zipper, adding smart-account delegation and stronger replay protection as XLM trading volume surged but the token remained below 20 cents.
XRP Ledger v3.2.0 has reached about 89% adoption on the default validator list, but its fixCleanup3_2_0 amendment still needs a separate on-chain vote.