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Bitcoin, Well Covered

Weekly briefing — every issue, newest first.

Issues · 13Latest · October 21, 2026
Week of
October 21, 2026
No. 013
Current

Bitcoin Core 32.0 finally ships on Oct 21 at 13:27 UTC — eleven days late, signed at commit 465dde2 with the tag message "Reproducibility Matters" — and its release notes retire BIP 9 bits 5–28 from soft-fork signalling under BIP 323, cutting Bitcoin's upgrade-voting surface from 29 channels to five on hardware-nonce grounds, with no consensus change and, at filing, no press coverage at all

8 more stories →

Week of
October 14, 2026
No. 012

Bitcoin Core 32.0 misses its October 10 release date and ships a fourth release candidate on Oct 12 instead, with no new date — the Oct 10 backport batch (PR #36427, eight fixes) having been held while reviewer willcl-ark corrected a stray commit-message reference on Oct 8, leaving two security fixes (a wallet-name command execution path present since v24.0, and a 16-connection REST memory blowup to ~3GB) sitting in a test build while the network runs 31.1

8 more stories →

Week of
October 7, 2026
No. 011

FinCEN withdraws the December 2020 unhosted-wallet proposal and the October 2023 mixing special measure on Oct 5, published Oct 6 — killing a six-year-pending regime that would have reported self-custody transfers over $10,000 — while conceding the mixing rule "could have a chilling effect on legitimate activity"

10 more stories →

Week of
September 30, 2026
No. 010

BIP-54, the Great Consensus Cleanup, moves forward inside Bitcoin Core — rebased Sep 25, reviewed again Sep 29, enabled on regtest only — fixing the timewarp attack, poison blocks, a merkle-proof forgery and a duplicate-transaction quirk, with no activation parameters and F2Pool refusing to signal first

8 more stories →

Week of
September 23, 2026
No. 009

Bitcoin's post-quantum roadmap is published on Sep 17 — BIP-360, SHRINCS, Lifeboat and Dropkick, targeting Dec 2029 — and BIP-361 would make unmigrated legacy coins permanently unspendable, with ~7M BTC exposed

8 more stories →

Week of
September 16, 2026
No. 008

Bitcoin Core 32.0 enters final testing with two security fixes — one a memory-exhaustion path surfaced by an AI audit and confirmed by a human reviewer, nine days before rc1

3 more stories →

Week of
September 9, 2026
No. 007

An inflation bug in Elements drains 4,000 BTC from Liquid's federation wallet — the attackers return 3,400 and keep $47M as a self-declared bounty, with the patch already merged but never shipped

3 more stories →

Week of
September 2, 2026
No. 006

BIP SHRINCS lands as Bitcoin's first post-quantum signature proposal, 13× smaller and carrying a lost-funds warning

3 more stories →

Week of
August 26, 2026
No. 005

A Treasury bond-buyback notice sends BTC up 21% to $81K on $1.44B of forced short covering

3 more stories →

Week of
August 19, 2026
No. 004

The frozen fork mines 4 blocks in 7 days and plans a Blake2b PoW switch to "fire the miners"

4 more stories →

Week of
August 12, 2026
No. 003

Bitcoin splits at block 961,632 and the fork dies after two blocks

3 more stories →

Week of
August 5, 2026
No. 002

BIP-110 hits mandatory signaling at ~1% support

2 more stories →

Week of
July 29, 2026
No. 001

Inaugural issue — a 30-day catch-up briefing and the first edition of the letter.

Compiled from public reporting as of each issue's date. Education only — not financial advice.