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Get the new SUPERTABs .zip file ready.
In the ZIP File field, click the folder button at the end of the field and select the .zip.
Click Update SUPERTABs (the button is only clickable once a valid file is selected).
A Confirm Update dialog appears. Check two things:
1.3.3 to 1.4.0 (a red warning shows if the new version is lower than installed).0 new, 3 overwritten, 0 removed.
If it says you are already on the latest version, every file already matches — nothing to do.
On success, the button turns into ”Press to Restart Blender” — click it, then reopen Blender so the new code takes effect.

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Settings are kept — tab groups, presets, and all settings files survive the update.
Want file details — click the TEXT icon next to Update to turn debug ON,

then Open Update Log Folder to read UPDATE_LAST.txt. Turn debug OFF for a quiet update with no log.
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