Hallo
I performed this procedure on 05.02.2017 - upgrading to LibreOffice 5.3 works easily.
- Open the “Welcome” centre (System > Welcome)
- Choose “Software”
####Note your system must be “set to retrieve the latest software listings” see:
https://ubuntu-mate.community/t/instaling-programs-with-the-terminal/9720/5
.
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Go to the section “Office”
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Scroll to LibreOffice
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There you should see a yellow “upgrade” button - click it and wait until the procedure finishes
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Scroll to LibreOffice Base
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There you should see a yellow “Reinstall” button - click it and wait until the procedure finishes
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Go to the section “Fixes”
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Click on “Update sources list” and wait until the procedure finishes
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Click on “Upgrade installed packages” and wait until the procedure finishes
You can now close “Welcome”
Your LibreOffice should now be updated.