History missing after VS Code extension update

What version of the VS Code extension are you using?

0.4.10.

Which IDE are you using?

VS Code

What platform is your computer?

Windows 11

What steps can reproduce the bug?

After updating to version 04.10, history tasks are missing.

What is the expected behavior?

Not to have history files disappear after an extension update.

What do you see instead?

History has disappeared after the extension update.

Additional information

The files are in .codex\sessions\... but the extension is not reading them, due to a format change. This issue was mentioned in #3762, which was closed with 'sorry for the disturbance'. Since the files are still available, and you did not provide any warning prior to the update, I think it is reasonable to expect you to convert the existing files to the new format to make them accessible. I would like to request that you do so.