One would hope that, after the switch, the SONAME of libblah would be bumped to indicate this. The distro can then continue to provide the original libblah.so.0 indefinitely. Of course, this is the ideal, and it's not always adhered to strictly, but Debian is pretty good at spotting these kinds of problems and hitting upstream with the cluebat when they screw up.
Posted Apr 2, 2012 17:19 UTC (Mon) by dark (subscriber, #8483)
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Yeah but that's not a good situation. The compatible version of the library is now unmaintained, orphaned. Is anyone making security fixes for it? More and more maintenance work will fall on the distributions, instead of being done in the project that's focused on the library. And some projects bump their versions several times a year, so the maintenance work on the old versions can really pile up. The result is of course that nobody does it, and installing a program that needs the old versions becomes really difficult.