I think the Atuin documentation mentioned the requirement for ble.sh’s version at some point, but it seems the description disappeared somehow.
edit:
The descriptions for the required ble.sh version was added in PR 1465, but they were removed in PR 2203 without updating the corresponding section in the atuinsh/docs repository. I tried to pick some of the lost information in PR 64 @ docs, but the version requirement wasn’t picked.
edit2:
I opened a pull request at atuinsh/docs.
edit3
I also opened a pull request for the warning message in atuin doctor.