After installing the latest version of the Git client (git version 2.34.1.windows.1), the following error is reported when pulling code from gitlab:

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$ git pull -r -v
The authenticity of host ‘[gitlab.lzw.me]:10022 ([xxx.xxx.xxx.xxx]:10022)’ can’t be established.
ED25519 key fingerprint is SHA256:K+/XdcpPLPqHJsmSIsXHUMIrRVxivN9//YiYFp7VQeM.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added ‘[gitlab.lzw.me]:10022’ (ED25519) to the list of known hosts.
git@gitlab.lzw.me: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

According to the analysis of the error message, you need to use the key of ED25519 SSH, which is the key of RSA SSH generated a long time ago.

The solution is as follows.

Open terminal terminal under Mac/Linux, or Git Bash under windows, and execute the command to generate ED25519 SSH key.

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ssh-keygen -t ed25519 -C "email@lzw.me"

Copy the contents of the generated ED25519 SSH public key file ~/.ssh/id_ed25519.pub and add it in the gitlab SSH Keys panel.

Command line copy of ~/.ssh/id_ed25519.pub contents ref.

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# macOS
pbcopy < ~/.ssh/id_ed25519.pub
 
# WSL / GNU/Linux (requires the xclip package):
xclip -sel clip < ~/.ssh/id_ed25519.pub
 
# Git Bash on Windows:
cat ~/.ssh/id_ed25519.pub | clip

Related references.