Am I using textcomp correctly?

Question

In a previous question of mine I was told to use the textcomp package if I wanted Old Style Numbers with tgtermes. I wanted to know if there were options I could use with it, so I went to it's ctan page, which has the following note:

The package supports the Text Companion fonts, which provide many text symbols (such as baht, bullet, copyright, musicalnote, onequarter, section, and yen), in the TS1 encoding.

Note that the package has been adopted as part of the LaTeX distribution; the reference here is to the original package, which is now little used (if at all).

Does that mean I'm using it wrong? I just loaded it as I would any other package:

\usepackage{textcomp}

Is this wrong? If so, how should I be loading it? If correct, where do I look to get documentation on it?

Answer 1

That reference is to the original textcomp package distributed with the ec companion fonts. It isn't normally used as there is an updated version (with the same name) for LaTeX2e distributed as part of the core LaTeX distribution.