giflib 4.2.0 released
<p>First giflib release since I <a href=http://esr.ibiblio.org/?p=4298"">reassumed the lead</a>. Short version: lots of useless old cruft thrown out, everything Coverity-scanned, one minor resource leak found and fixed.</p>
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<p>As I&#8217;ve <a href="http://esr.ibiblio.org/?p=4304">previously noted</a>, this code was in astonishingly good shape considering its great age.  I vigorously beat the dust out of it with Coverity and cppcheck, but found only one very minor bug that way &#8211; a malloc leak following a malloc failure in the code that makes color-table structures. I think it is rather likely this case has never actually been triggered.</p>
<p>I retired six utilities, added a bunch of documentation and made it HTML-able, fixed a minor bug in how output GIF versions are computed in an upward-compatible way, and fixed a thread-safety problem. I added a rudimentary regression-test suite; this could use some more work. All tracker bugs have been resolved and closed.</p>
<p>Next release, 5.0, will make one very minor change in the API near extension blocks.    </p>
