[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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Yeah same here , but the idea is to have simpler upgrades without any user interaction besides typing opkg upgrade just like in debian.
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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#comment2747