Bitbucket Cloud requires Git Credential Manager (GCM) version **3.0.0 or higher**.

Step 1: Check your actual active GCM path and version

Run this command to see precisely *where* Git is finding the credential manager:

bash

 git --exec-path

Or check the version path directly:

bash

 git credential-manager --version

If this still outputs a version lower than `3.0.0`, Git is invoking an outdated binary lingering in your system path or Program Files.

Step 2: Force an update based on your OS

Windows:

If you updated Git for Windows, ensure it actually upgraded its bundled components. Alternatively, you can install/update GCM standalone via winget:

powershell

winget install Microsoft.GitCredentialManager

Verification: Open a fresh terminal window, run `git credential-manager --version`, and ensure it reads `3.0.0` or higher.

macOS:

If you use Homebrew, ensure the cask is fully upgraded:

bash

brew upgrade --cask git-credential-manager

Verification: Run `git credential-manager --version`.

Linux:

Download the latest `.deb` or `.rpm` release directly from the official [Git Credential Manager GitHub Releases page](https://github.com/GitCredentialManager/git-credential-manager/releases) and install it using your package manager.

Step 3: Clear cached credentials (if the warning persists)

Sometimes Bitbucket caches the handshake response or your old authorization token. After updating, force a fresh login prompt by clearing your stored helper cache:

bash

git credential-manager erase

(When prompted, enter `host=bitbucket.org` and `protocol=https`, then press Enter twice).* The next time you push or pull, GCM will trigger a fresh browser-based or token authentication flow using the updated version.

Cheers,

Samitha