Shir Shel Yom Revi-i

The saying of "Shir Shel Yom" in general is something not very old, only about 400 years. and there are many different ways it was said, for example the beginning היום יום etc. started later and has many different variations. The addition of the three Psukim is something quite late, and in Divrei Kehillos he talks a lot about it (page 54 Se'if Koton א), and claims that only the one Posuk should be said (Lechoo neranenoh) as far as I know in KAJ (Washington Heights) they do not say the Psukim at all, and in KAYJ the minhag is not to add the Psukim.
In addition, since we continue with Shir mizmor Le'osof it really isn't so important to add the Psukim at all.

Michael

As written, all of these additions are very late, and it seems that there was not to much Hakpodoh on them. A friend of mine from KAJ WH claimed it's not said, and I hope to hear from someone local what they do lema'aseh.

Michael

I just was told by R' Yisroel Strauss of Washington Heights that the three Psukim are definitely said in "Breuer's". But in "Sha'arei Tikvah" (another shul in WH that followed different German minhogim) only the first posuk was said.

Michael