A feed of the latest blog posts from major bitcoin and crypto wallet companies and developers, direct from the source.  A quick way to stay on top of the latest potential security issues, new products and current deals.

Bitcoin Core
Bitcoin Core 31.0 released Bitcoin Core version 31.0 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 ...
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Casa Blog
Casa Blog
A Technically-Fluent Bitcoiner’s Inheritance Story TLDR;A deeply technical early Bitcoiner realized that self-custody is only as strong as its worst-case inheritance plan. He needed a system that could survive incapacity, family catastrophe, and coercion without sacrificing sovereignty. With Casa, he built a collaborative 3-of-5 family ...
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Casa Blog
Casa Blog
The Bitcoin Inheritance Gap: What Most Bitcoiners Miss Bitcoiners who have moved off exchanges, set up hardware wallets, and upgraded to multi-key wallets have done the work to ensure their bitcoin is secure.Most have not addressed inheritance yet.A traditional will covers real estate, bank accounts, and investment portfolios. ...
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Casa Blog
Casa Blog
The security review every serious bitcoiner should do in 2026 Most bitcoiners with meaningful positions have done something about security: a hardware wallet, a seed phrase backup, enough research to feel covered.Bitcoin security is a system, not a purchase. A setup built for the position you had in 2021 or ...
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Bitcoin Core
Bitcoin Core 28.4 released Bitcoin Core version 28.4 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 ...
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Introducing the COLDCARD Mk5
COINKITE Blog
Introducing the COLDCARD Mk5 The Mk4 is a proven workhorse. It’s secure, it’s air-gapped, and it gets the job done. But engineering is about moving forward. Today, we’re introducing the next step in that evolution: the COLDCARD Mk5.
The Mk5 builds on the trusted, battle-tested ...
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BIP-322 Support, WIF Keys, and more!
COINKITE Blog
BIP-322 Support, WIF Keys, and more! New COLDCARD Feature Release: BIP-322 and WIF Support
Today we are releasing a new firmware version for COLDCARD. Tons of new features for both product families: Mk and Q!
New Features
BIP-322 Signing
COLDCARD can now sign BIP-322 “Proof of Reserve”
PSBT files.
This requires a ...
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Bitcoin Core
Bitcoin Core 29.3 released Bitcoin Core version 29.3 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 ...
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Bitcoin Core
Bitcoin Core 30.2 released Bitcoin Core version 30.2 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 ...
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Bitcoin Core
Wallet Migration Failure May Delete Unrelated Wallet Files In Bitcoin Core 30.0 and 30.1 We have become aware of a wallet migration bug introduced in Bitcoin Core 30.0 and 30.1. Under rare circumstances, when the migration of a wallet.dat file fails, all files in the wallet directory may be deleted in the process, potentially ...
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Bitcoin Core
Bitcoin Core 30.1 released Bitcoin Core version 30.1 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 ...
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Casa Blog
Casa Blog
Announcing SOC 2 Type II Compliance Casa's internal security controls have now been verified by independent auditors over a 6 month period.
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Casa Blog
Casa Blog
A new look for your vault At Casa, our mission is to help people and organizations take true control of their bitcoin, forever. We believe in sovereignty, and that individuals, families, and businesses should have the tools to protect their wealth without relying on third parties.Today ...
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Bitcoin Core
CVE-2025-54605 - Disk filling from invalid blocks Disclosure of the details of a log-filling bug which allowed an attacker to cause a victim node to
fill up its disk space by repeatedly sending invalid blocks. Exploitability of this bug is limited,
as it would take a long time before ...
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COINKITE Blog
COLDCARD Bitcoin Spending Policy Released New COLDCARD Feature Release: Spending Policies!
Spending Policy for Single Signers
You can now take your existing single-signer COLDCARD and reconfigure it
so that the COLDCARD will refuse to sign transactions that are “too big” /
“too fast”, or send to an address not ...
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COINKITE Blog
Earn Sats Straight to Cold Storage with Zaprite and COLDCARD Earn Sats Straight to Cold Storage with Zaprite and COLDCARD
Zaprite and COLDCARD: Empowering Bitcoin Payments with Cold Storage Security
Bitcoin adoption continues to grow among freelancers, creators, and businesses worldwide. Yet one challenge persists – many users receive payments into hot ...
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Coldcard Cosign and Key Teleport
COINKITE Blog
Coldcard Cosign and Key Teleport New COLDCARD Release: Many BIG features & Fixes!
Two New Heavyweight Features
CCC: COLDCARD can now Co-sign like collaborative multisig HSMs, no centralized servers needed.
KeyTeleport: Send secrets on a video call to other COLDCARD! Securely move seeds,
secure notes/passwords, multisig PSBTs, even full ...
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Blog - MEW
NEW SHOW ANNOUNCEMENT: COPENHAGEN We’re pleased to announce an intimate show in Copenhagen, at Rust on September 1st! Where we will be playing 'And The Glass Handed Kites…’ in its entirety.Tickets are on-sale NOW here: https://mew.ffm.to/copenhagen2021.owe
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HELSINKI AND OSLO
Blog - MEW
HELSINKI AND OSLO Due to local restrictions still in place we have rescheduled our headline shows in Helsinki and Oslo to January 2022. Tickets for the original dates will remain valid for the new dates: mew.ffm.to/live- January 27: The House of Culture, Helsinki.- ...
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Stephan Livera
Stephan Livera
Bitcoin Supercycle or nah? Date of writing: 27/05/2021 & Bitcoin price: $39,600 USD/BTC or 1 sat = $0.0004 USD Every now and again I […]
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JAPAN 2021 SHOWS CANCELED
Blog - MEW
JAPAN 2021 SHOWS CANCELED MEW’s Japan tour originally scheduled on Jan16th – Jan19th is cancelled due to current situation of COVID-19 all over the world.Ticket refunds will be available from the point of purchase.We’re looking forward to returning to Japan and being able to ...
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