Urlclassifier-notes
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Warning: This constant was removed in https://hg.mozilla.org/mozilla-central/rev/173f90d397a8
Safebrowsing/UrlClassifier Notes
bug 534079 required we change the '#define IMPLEMENTATION_VERSION' in toolkit/components/url-classifier/src/nsUrlClassifierDBService.cpp
We updated the 1.9.0.19 release to '8'
The 1.9.1, 1.9.2 and 1.9.3 versions are at '7'
The next version number to use on 1.9.3 + is '9', so it will jump from 7 to 9
There probably will not be another 1.9.0.x release after 1.9.0.19. If there is, just increment +1 trunk's version and increment trunk on subsequent releases (that have changed) to +1 the highest revision.
This most likely will not be a problem.