@zensaiyuki "as of a few years ago" - 1998, to be exact.
If you're looking for Pyrex that won't explode (or at least is far less likely to), check the logo. If it's all caps e.g. "PYREX", then this is the version of the trademark which covers borosilicate glass. The lowercase version of the trademark e.g. "pyrex" is the one used on soda-lime products.