It must be kept in mind that it is very unfair (to put it mildly) to expect free (as in beer, if not speech) software to come with a warranty. One cannot expect a certificate of quality and terms of warranty for software developed by volunteers.
However, when I buy some software (let's not get technical on whether I buy the software or a licence), it is quite reasonable to expect that the software developers give some sort of quality assurance (warranty or otherwise).
Aveek Bhattacharya M.Tech., Electrical Engineering, IIT Bombay
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