LibreOffice, in the most primordial form, has been developed since 1985. It's older than Linux.
To be honest though, would I use it for my business? No. Broken formatting (for either my side or a client's side) isn't acceptable; the UI is two decades behind; LibreOffice Calc is still too incomplete; and who knows what's in a C++ codebase that old and that large (100,000+ files, 10M+ LoC) - it's basically security by obscurity. Microsoft Office getting hacked and fixed, is better than a target too small to matter until a government adopts it.
I like LibreOffice... but the people who think LibreOffice is even remotely a competitor to Office 365 have no clue what Office 365 does or why enterprises use it.
> I like LibreOffice... but the people who think LibreOffice is even remotely a competitor to Office 365 have no clue what Office 365 does or why enterprises use it.
I don't think it is even a good competitor if you're actually creating bigger, slightly more professional looking documents / spreadsheets or want some quick working UI as a normal consumer. LibreOffice still cannot do live element updates which has been introduced with Office 2007!
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> the UI is two decades behind;
Still better than the shitshow that is MS UI/UX.