Jul 31, 2026
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1 min read
Official, timestamped COLDCARD advisories, firmware notices, and migration guidance.
Jul 29, 2026
4 min read
Use COLDCARD BIP-85 to derive separate child seeds for compatible wallets, reduce seed-backup sprawl, and keep the parent seed off every destination device.
Jul 23, 2026
3 min read
Jul 17, 2026
8 min read
Jul 2, 2026
New COLDCARD Release: Versions 5.5.1 (Mk4/Mk5) and 1.4.1 (Q)
Product Update
+1
Jun 4, 2026
We’ve been hard at work, and we’re incredibly proud of the launch of the COLDCARD Mk5.
Apr 21, 2025
2 min read
New COLDCARD Release: Many BIG features & Fixes!
Black Friday
Nov 22, 2023
Up to 25% OFF
Developer Preview
May 12, 2023
If you are not a developer, you can ignore Edge version completely.
![Announcing: Edge Firmware [developer preview] for CC Mk4](https://media.beehiiv.com/cdn-cgi/image/format=auto,width=720,fit=scale-down,onerror=redirect/uploads/asset/file/babd13f6-5cb7-4d9a-97d9-c26ccfa75519/f8943ab3-1d40-432d-825e-175d67271d79_926x1396.png?t=1783531934)
