Follow announcements and reports from the original sources. Relevant headlines also help build each day’s market story.
How to pay unpaid tax if you have income or gains from cryptoassets, and how long it takes for your payment to reach HMRC.
Read the update ↗Updated 13 Nov 2026, 13:07 UTC
See what the source reported and how Montara explains it.
Disclosure of the details of a mempool inconsistency due to TRUC “sibling eviction” rules firing on reorg. A fix was released on October 10th 2025 in Bitcoin Core v30.0. Affected versions are 28.0 to 28.2 and 29.0 to 29.1. This issue is considered High severity. Details Transaction relay policy applies extra…
Bitcoin
10 Nov 2026, 20:21 UTCRead the story ↗Bitcoin Core before versions 28.3, 29.2 and 30.0 will also include Tor inbound peers in a whitelist configured over an IP range. This issue is considered Medium severity. Details In Bitcoin Core, the IP address of inbound Tor peers is that of the Tor daemon, which usually runs on the same machine or local network.…
Bitcoin
10 Nov 2026, 20:21 UTCRead the story ↗Block processing in Bitcoin Core before versions 29.2 and 30.0 may be stalled by a malicious peer exploiting witness malleation in compact blocks, under some conditions. This issue is considered Medium severity. Details Affected Bitcoin Core versions would clear download state for a compact block following…
Bitcoin
10 Nov 2026, 20:21 UTCRead the story ↗Glamsterdam, the next update for Ethereum, is currently being tested on testnets. During these tests Chainsecurity has found a few projects that would be vulnerable after Glamsterdam since they rely on certain invariants. These invariants will be broken by EIP-8037 and EIP-8038 which rework how much gas is charged…
Ethereum
6 Nov 2026, 12:42 UTCRead the story ↗Public services increasingly rely on digital systems that enable institutions to collaborate across organizational and national boundaries. Such cooperation may involve government agencies verifying documents issued by other authorities, or humanitarian organizations coordinating assistance while safeguarding…
Ethereum
9 Nov 2026, 23:02 UTCRead the story ↗Find out when and how to report to HMRC under the Cryptoasset Reporting Framework (CARF).
2 Nov 2026, 10:12 UTCRead the story ↗Find out whether you need to report to HMRC under the Cryptoasset Reporting Framework (CARF).
2 Nov 2026, 10:12 UTCRead the story ↗This measure is about the treatment of certain disposals involving cryptoasset loans and liquidity pools for Capital Gains Tax.
28 Oct 2026, 21:20 UTCRead the story ↗Disclosure of the details of a bug that lets a miner corrupt the undo data of other nodes, causing them to shut down if a reorg of precisely the right blocks follows, or on Windows and 32-bit systems as soon as the affected blocks are connected. It is impractical to exploit. A fix for 64-bit systems was released…
29 Oct 2026, 15:39 UTCRead the story ↗Bitcoin Core version 30.4 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you.
Bitcoin
28 Oct 2026, 16:59 UTCRead the story ↗Bitcoin Core version 29.5 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you.
Bitcoin
4 Nov 2026, 02:44 UTCRead the story ↗On platforms other than Linux, a malicious peer could cause a node to run out of memory by sending TCP urgent (out-of-band) data. A fix for this issue was released in Bitcoin Core versions 29.5, 30.4, 31.2 and 32.1. This issue is considered Medium severity and easily discoverable . Details Bitcoin Core uses a…
Bitcoin
29 Oct 2026, 15:39 UTCRead the story ↗Bitcoin Core queues announcements for all peers, including paused ones. Pre-BIP31 peers could stay paused forever and let the queue grow unboundedly. A fix for this issue was released in Bitcoin Core versions 29.5, 30.4, 31.2 and 32.1. This issue is considered Medium severity and easily discoverable . Details…
Bitcoin
29 Oct 2026, 15:39 UTCRead the story ↗Bitcoin Core version 31.2 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you.
Bitcoin
28 Oct 2026, 16:34 UTCRead the story ↗Bitcoin Core version 32.1 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you.
Bitcoin
28 Oct 2026, 15:23 UTCRead the story ↗The Glamsterdam upgrade on Hoodi, previously scheduled for October 26, 2026 at 17:42:48 UTC (epoch 132,352), has been postponed. A new activation date has not been set. This update supersedes the schedule and activation instructions in the Hoodi testnet announcement....
28 Oct 2026, 21:01 UTCRead the story ↗Find out how UK VAT applies to cryptoasset activities, including when to register, place of supply rules and record‑keeping.
26 Oct 2026, 16:32 UTCRead the story ↗Update — October 22, 2026: The October 26 Hoodi activation has been postponed, including the scheduled gas-limit increase to 200M. The schedule and activation instructions below have been superseded. See Glamsterdam on Hoodi Postponed for details and operator guidance. Following its activation on Sepolia on…
26 Oct 2026, 09:52 UTCRead the story ↗The Ethereum Foundation's Trillion Dollar Security initiative has identified blind signing and transaction uncertainty as a user experience risk, and is exploring native transaction assertions as a next step to enforce a transaction’s final outcome, alongside Clear Signing. This post covers why a valid signature…
Ethereum
26 Oct 2026, 10:17 UTCRead the story ↗The Securities and Exchange Commission today proposed new rules and amendments to provide a tailored framework for the custody of crypto assets for registered investment advisers and regulated funds, i.e. registered investment companies and business…
26 Oct 2026, 10:18 UTCRead the story ↗tl;dr: zkAPI lets you pay for a metered API without being known. Deposit credits into an Ethereum vault once, then authorize bounded usage with zero-knowledge proofs instead of an identity. The provider sees the requests, and the payment layer sees the spend. Neither learns the link between them. The...
Ethereum
26 Oct 2026, 10:23 UTCRead the story ↗Glamsterdam follows the Fusaka upgrade, advancing Ethereum's L1 scaling roadmap with enshrined proposer-builder separation, block-level access lists, and changes to gas pricing that better reflect the cost of execution and state growth. The Glamsterdam network upgrade is scheduled to activate on Sepolia at epoch…
Ethereum
26 Oct 2026, 10:30 UTCRead the story ↗Every year since January 2019, teams from the Ethereum Foundation have spent an afternoon or two on r/ethereum answering questions from the community. The format hasn’t really changed: one thread, technical debates, detailed explanations, and community members asking whatever is on their mind. By now it is a…
Ethereum
26 Oct 2026, 10:51 UTCRead the story ↗In May, the Protocol cluster welcomed a trio of new cluster coordinators and promised updates to follow. After months of settling in and aligning with contributors cluster-wide, across the EF and across the Ethereum ecosystem, we are now happy to share Protocol's priorities: what Protocol is for, the commitments...
Ethereum
26 Oct 2026, 10:52 UTCRead the story ↗This is the EF Protocol cluster’s tier list for Hegotá. We evaluated the 62 EIPs proposed for inclusion, each with a tier and a short note on the grade. It is the first time the cluster has published one unified view rather than per-team opinions. Geth, of course, being...
26 Oct 2026, 10:52 UTCRead the story ↗...
26 Oct 2026, 10:56 UTCRead the story ↗Stories develop as new evidence arrives. Missing analysis is shown as pending; source publication and Montara update times remain distinct.