Am 26.01.2014 20:45, schrieb Chris Murphy: >> So ? >> It is only visible if you downgrade which a lot of software do not >> support and explicitly so > > The right way to do file format changes is you design the new format. > And in a minor version update, the application gains the ability to > read the new file format, but still writes the old file format. > The major version upgrade of the application is enabled to write the > new file format, while it can read either old or new formats.
please look at the hidden folders in your userhome and /var/lib/ to get a picture about what we are talking here > If Adobe Photoshop version n.1.0 started to write out Photoshop documents > in a manner that n.0.0 could not read, 100% of users would call it a major > bug, > and it would escalate into vicious name calling nobody but you is talking about documents the user really visualizes > Breaking downward compatibility in file formats for regular Joe user is > courting > public relations disaster. It can kill a product. Even Microsoft doesn't do > this lightly nobody but you is talking about documents the user really visualizes
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