Ok, couple of new things i have so far found with this version of latex:
\left now requires \right, this is sort of a bummer sometimes, i know, but get used to it... (yes that means that you have to provide a right delimiter as well, no it cant be empty for some reason)
in arrays, the next array space delimiter i.e going to the second c in {c c} is a single & (it will scream at a double with a random issue "Extra alignment tab has been changed to \cr")
By the way, you will notice that latex now shows you the error message, sometimes googling it is not a bad idea, or for a quick outline of the most common errors, have a quick glimpse at this page here:
Common LaTeX Errors
Lastly you will notice that the [latex] tag no longer works at all, and i dont think we are bringing it back, though i should probably make it work like math tags, just so at least some of the formulas will show up

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Microsoft, the leader in using innovative tactics to promote irksome experience, coupled with antiquated technology that's held together by a pyramid of makeshift afterthoughts.
Apple, the leader in using irksome tactics to promote innovative experience, coupled with an antiquated core that's enhanced by state-of-the-art afterthoughts.
Linux, the leader in not using any tactics to promote user-defined experience, coupled with state-of-the-art core enhanced by innovative afterthoughts.
