This is most 'strange area' of KMs today.
The lack of developers results in new version unfinished for a long period, so it stays 'beta', but the 'stable' release is really outdated for more and more modern websites (their number increases day by day).
Don't be afraid - 1.6beta as well as 1.7alpha are fully usable. They have some small limitations but those are significantly smaller than problems with old K-Meleon 1.5.x...
There are numerous links on 'official' and user-supported builds of 1.6 and 1.7 branches on the forum.
Some of them you can find in my signature, for more search the forum (
General and
Development sections)...
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Using
K-Meleon-1.6.17db+ /
KM-16-S2014
1.6beta2.5 by JamesD
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Recommending K-Meleon Twin+
Try and
discuss it!!!