Given the dominance of Arabic in the region over the past 1400 years and the frequent bilingualism with Arabic among Mehri speakers, Mehri is at some risk of extinction. It is primarily a spoken language, with little existing vernacular literature and almost no literacy in the written form among native speakers.
Hamdani (d. 334 / 946) noted that "the Mahra speak a barbarous tongue like foreigners", that is - he knew that Mehri was not intelligible as northwest Semitic.
Today Mehri exists in two main dialects, Yemeni Mehri (also known as Southern Mehri) and Omani Mehri (also known as Dhofari Mehri and Nagd Mehri). Omani Mehri is spoken by a smaller population and shows no significant variation within itself, while Yemeni Mehri is further divided into western and eastern dialects.
Voiced obstruents, or at least voiced stops, devoice in pausa. In this position, both the voiced and emphatic stops are ejective, losing the three-way contrast (/kʼ/ is ejective in all positions). Elsewhere, the emphatic and (optionally) the voiced stops are pharyngealized. Emphatic (but not voiced) fricatives have a similar pattern, and in non-pre-pausal position they are partially voiced.
The difference in place of the laterals is not clear. It may be that the approximant is denti-alveolar, like the alveolar occlusives, and the lateral fricatives apical, or it may be that the latter are palato-alveolar / alveolo-palatal. These fricatives are typically transcribed ś etc.
/dʒ/ is only found in Arabic loans. It is not clear if the rhotic is a trill or a tap.