[FS#826] Better implementation of upgrade system on lede

[LEDE Bugs]

The following task has a new comment added:

FS#826 - Better implementation of upgrade system on lede
User who did this - piotr (pietia)

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Hello yeah either that or we use script like stated up its a txt file so this won't take space at all pretty much.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=826#comment2744