[jlogajan]

we no longer obey the specific commandments

Yes yes, some follow that line. Fundamentalist don't.

However, that line of explanation doesn't really make sense. It means God has to keep adding revisions to his "divine" word. Apparently we are on Rev 2.0 now. When is Rev 3.0 due??? Can't an infinite all powerful being get it right on Rev 1.0?

[Texas Gal]

we no longer obey the specific commandments [of the Old Testament]... and yes, you are correct, some people who say they are Christians do observe certain portions of the Old Testament without observiing every bit of it.  I don't really know why they believe like that, but I can only speak for myself in regard to this.  Each person has to answer for himself, ultimately.
However, that line of explanation doesn't really make sense. It means God has to keep adding revisions to his "divine" word. Apparently we are on Rev 2.0 now. When is Rev 3.0 due??? Can't an infinite all powerful being get it right on Rev 1.0 [wrote you]?

Nay but, O man, who art thou that repliest against God? Shall the thing formed say to him that formed it, Why hast thou made me thus?   Romans 9:20
If that's the way He wants it I'm sure not going to pick an argument with Him.

[reg45]

Perhaps Rev. 1.0, Rev. 2.0 and Rev. 3.0 represent changes because the human race needs different solutions at different times.

[Tennessee_Bob]

It means God has to keep adding revisions to his "divine" word.

Well, according to Muslim apologists, Mohammed was the best and final of revisions by God. Anything else is just heresy.