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What did they do to the treebar?

I'm sure they looked at using a treebranch or treelog or such, but they decided to be environmentally friendly and went for the treebar option, it also has many cost savings as downloading parts of tree's over the internet can be troublesome.
Also, saw dust doesn't have the same effect as a treebar, whatever the case some of the latest versions of mirc have been pretty stable so not everyone *need* to upgrade.
If you don't need bug fix's as none to my knowledge are security risks, so unless you need something in the latest version why worry for now?

cheers