Actually that's the reason...
Posted Nov 9, 2011 8:17 UTC (Wed) by khim
In reply to: Thunderbird too
Parent article: Firefox 8 released
major progress restarts in that area and third parties will need to target specific versions
They need this now - this is exactly why version numbers are incremented regularly.
For example you mentioned NaCl. Well, NaCl was introduced in Chrome 14, but if you need glibc then it's at least Chrome 15, if you want to use in-browser fonts from NaCl then it's Chrome 16 and if you need mouse capture then you are stuck with Chrome 17, etc.
And while changes itself may be small (as you can guess NaCl was much harder to create then mouse capture) psychology matters. If you create something which needs at least Firefox 3.4.5 then you'll hear a lot of complains that your app or website does not work in 3.4.3 with a justification that "it's the same version, it should work", but version 104 vs version 105 are still perceived as "may be different, I need to wait or upgrade".
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