| Date | Version | Highlights | |
|---|
| Sep 30, 2026 | 5.6.3 | New Feature: Codex32 (BIP-93) secrets and Shamir secret sharing. Generate or import Codex32; Enhancement: Support per-input required height and time locktimes in PSBTv2 transactions. | notes |
| Sep 3, 2026 | 5.6.2security | New Feature: Added USB ncry v3 authenticated encryption for our USB communications; Enhancement: Warn when a transaction's block-height nLockTime is more than | notes |
| Aug 20, 2026 | 5.6.1security | Improvements to Entropy Generation:; Master seed generation now combines fresh entropy from the STM32 TRNG, | notes |
| Jul 1, 2026 | 5.5.1 | Enhancement: Can export WIF Store watch-only descriptor.; Enhancement: WIF Store address detection without the need | notes |
| Nov 3, 2025 | 5.4.5 | Enhancement: Address format guessing changed away from using PSBT XPUB's derivation paths.; Enhancement: Show master XFP of backup secret and ask user for confirmation before loading backup. | notes |
| Sep 30, 2025 | 5.4.4 | Spending policies for "Single Signers" adds new spending policy options:; limit your Coldcard so it refuses to sign transactions that are "too big" | notes |
| May 14, 2025 | 5.4.3 | Enhancement: Text word-wrap done more carefully so never cuts off any text, and yet; Bugfix: Add current tmp option, which could be shown in Seed Vault menu under | notes |
| Apr 16, 2025 | 5.4.2 | Huge new feature: CCC - ColdCard Cosign; COLDCARD holds a key in a 2-of-3 multisig, in addition to the normal signing key it has. | notes |
| Feb 13, 2025 | 5.4.1 | New signing features:; Sign message from note text, or password note | notes |
| Sep 12, 2024 | 5.4.0 | New Feature: Opt-in support for unsorted multisig, which ignores BIP-67 policy. Use; New Feature: Named multisig descriptor imports. Wrap descriptor in json: | notes |
| Jul 5, 2024 | 5.3.3 | New Feature: PushTX: once enabled with a service provider's URL, you can tap the COLDCARD; New Feature: Transaction Output Explorer: allows viewing all output details for | notes |
| Jun 26, 2024 | 5.3.2 | New Feature: PushTX: once enabled with a service provider's URL, you can tap the COLDCARD; New Feature: Transaction Output Explorer: allows viewing all output details for | notes |
| May 9, 2024 | 5.3.1security | _Important Bugfix_: Already imported multisig wallets would show errors when signing. This; Enhancement: Add Nunchuk and Zeus options to Export Wallet | notes |
| Dec 21, 2023 | 5.2.2 | Bugfix: Re-enable Lock Down Seed feature which was disabled by accident | notes |
| Dec 19, 2023 | 5.2.1 | New Feature: Temporary Seed import from a COLDCARD encrypted backup.; New Feature: Export seed words in SeedQR format (on screen QR). | notes |
| Oct 10, 2023 | 5.2.0 | New Feature: Seed Vault. Store multiple temporary secrets into encrypted settings for simple; New Feature: PSBTv2 support added! Enables new PSBT workflows and applications. | notes |
| Sep 8, 2023 | 5.1.4 | Bugfix: Most users would see a red light after upgrade to 5.1.3 from 5.1.2. Fixed. | notes |
| Sep 7, 2023 | 5.1.3 | New Feature: Batch sign multiple PSBT files. Advanced/Tools -> File Management -> Batch Sign PSBT; Enhancement: Sparrow Wallet added as an individual export option (same file contents) | notes |
| Apr 7, 2023 | 5.1.2 | Enhancement: Support all SIGHASH types (previously only SIGHASH_ALL was supported).; Enhancement: SeedXOR now supports 12 and 18 words mnemonics. | notes |
| Feb 27, 2023 | 5.1.1 | Bugfix: Same as 5.1.0 but corrects issue which prevented 5.1.0 from being upgraded | notes |
| Feb 27, 2023 | 5.1.0 | New Feature: "MicroSD card as Second Factor". Specially marked MicroSD card must be; New Feature: Import TAPSIGNER encrypted backup as main or ephemeral seed, for PSBT signing. | notes |
| Oct 5, 2022 | 5.0.7 | NFC Enhancements:; In older versions, multisig NFC import not offered if a MicroSD card was | notes |
| Jul 29, 2022 | 5.0.6security | Security release: Virtual Disk feature updated with bugfix to address potential security | notes |
| Jul 20, 2022 | 5.0.5 | Enhancement: BIP-85 derived passwords. Pick an index number, and COLDCARD will derive; Documentation: added docs/bip85-passwords.md documenting new BIP-85 passwords and | notes |
| May 27, 2022 | 5.0.4 | Enhancement: Optional USB protocol change which binds the ephemeral ECDH encryption; Enhancement: In HSM mode, when more than 1k approvals, handle overflow in display, | notes |
| May 4, 2022 | 5.0.3 | Enhancement: Support P2TR outputs (pay to Taproot) in PSBT files. Allows | notes |
| Apr 19, 2022 | 5.0.2 | Adds NFC support for exporting to all the various wallet-types.; Multisig wallet specs can be exported via NFC, and new multisig wallet can be imported over NFC. | notes |
| Mar 24, 2022 | 5.0.1 | bugfix: red light whenever MCU keys changed or seed installed first time. | notes |
| Mar 14, 2022 | 5.0.0 | (Mk3&Mk4) Performance improved: some internal objects cached to reduce delays when; Enhancement: Power-down during the login countdown now resets the time delay to force | notes |
| date not published | 5.5.0 Source lists 2065-03-05, which is in the future (probably a typo in the vendor changelog). | This release supports both the newer Mk5 hardware and existing Mk4.; Enhancement: Show QR of XOR-split seeds. | notes |