Bitcoin
A draft BIP would standardise which Bitcoin outputs expose their keys
Published estimates of quantum-exposed supply range from about 25% to over 34%. The author argues the gap is definitional and proposes four levels with a fail-closed rule.
Coin Brief — Crypto news, read from the protocol's own record
The FCA says it will move without waiting for legislation
A speech on market infrastructure names AI and tokenisation, puts trading hours in question, and commits to going as far as supervisory discretion allows.
A PSBT test vector arrives because a bug got past the old ones
BIP-174 gains a combiner vector for the sighash type, plus an instruction to run the existing vectors in both orders - because Combine is not commutative and the tests were.
Three proposals today, all about what you are allowed to forget
Ethereum wants nodes to keep four months of beacon blocks instead of fourteen. Bitcoin wants to back up the data that is not the seed. XRPL is adding confidentiality to a token type. Retention is the common subject.
Avalanche activated Helicon on mainnet with six proposals at once
The upgrade went live at 11 AM ET on 22 September, bringing C-Chain async execution, auto-renewed staking, a higher uptime requirement, a shorter minimum stake, a dynamic gas floor and a lower consumption rate.
BIP-138 encrypts the part of a wallet backup that is not the seed
A new draft BIP defines a compact encryption scheme for output script descriptors, wallet policies and other metadata. The payload is forbidden from containing private key material.
The SEC let one fund issue an exchange class and a tokenized class
Release No. IC-36333 grants ARK Venture Fund amended exemptive relief for two new share classes, one of which can record ownership on distributed ledger. Nothing is trading yet.
The three EU supervisors name non-EU ICT providers as a system-level risk
The autumn 2026 joint risk update from EBA, EIOPA and ESMA puts external dependencies, private credit and AI-enabled cyber threats at the top, while reporting the EU financial system as resilient.
EIP-8383 would cut the beacon block retention window by three quarters
The draft lowers MIN_EPOCHS_FOR_BLOCK_REQUESTS from 33,024 epochs to 8,192, arguing the existing figure comes from a worst-case weak-subjectivity calculation nobody actually uses.
SIMD-0558 spells out the order in which its syscall refuses a pointer
The leader-info syscall proposal now documents pointer validation step by step: compute units first, then an unaligned-loader guard, then a direct rejection of input-region destinations.
A prerelease codec adds Confidential MPT definitions to xrpl.js
ripple-binary-codec 2.12.0-smartescrow.0 ships support for XLS-0096 Confidential MPT and XLS-68 sponsorship, on a branch named for a feature that is not the headline.