Extension no longer supported in second sidebar

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Hey, yeah, it’s clear that a security policy downgrade and portable mode aren’t an option.

Honestly, there’s no plan to roll this behavior back. In Glass and the Agents Window, the secondary sidebar was intentionally replaced with the new panel system, and extensions now live in editor groups instead of the auxiliary bar. Feedback about bringing back the old behavior is logged, but there’s no specific ETA or commitment to a fix yet.

Here’s what you can try on 3.x to get close to the old setup without downgrading:

  1. Open the extension Claude Code, Codex, or OpenAI as a normal tab, then drag it by the tab header to the right edge of the window. You’ll see a highlight for a new editor group on the right. After that, edits will open on the left, and the extension will stay on the right.
  2. You can do the same via Command Palette. With the extension tab active, run View: Move Editor into Right Group.
  3. If the extension icon is missing from the activity bar, try View: Reset View Locations and then Developer: Reload Window. After recent updates, drag and drop back into the sidebar started working again for some users.
  4. In settings.json, you can add "workbench.editor.openSideBySideDirection": "right". This helps with Open to the Side.

If any step doesn’t work, tell me exactly which flow breaks, like where you open the file from and where diffs show up, and we can look at it case by case. If there’s an update on the main issue, I’ll reply in the thread.