Bitcoin Cash Node will implement 1-minute blocks for a May 15, 2027 mainnet target. Chipnet testing comes first, and exchanges set their own deposit rules.
Aztec launches Tierra V6 with faster private proofs and a fix for its critical V5 flaw. Historical exploitation remains unquantifiable, the project says.
Zcash sets NU7 at block 3,543,405, targeting November 5. The upgrade brings 25-second blocks and a spending cutoff for legacy Sprout funds.
SEC staff clarified when crypto buybacks and network upgrades avoid investment-contract treatment, drawing a line at functional systems and profit promises.