Mayo clinic still claims it does. Easy enough to prove it to yourself, just check your blood pressure, eat some salt, and recheck.

Low blood pressure (hypotension) Treatments and drugs - Mayo Clinic

"Use more salt. Experts usually recommend limiting the amount of salt in your diet because sodium can raise blood pressure, sometimes dramatically. For people with low blood pressure, that can be a good thing.

But because excess sodium can lead to heart failure, especially in older adults, it's important to check with your doctor before increasing the salt in your diet."