The term Change of Status (COS) is the name given to the process through which a person can change from one temporary status (nonimmigrant) to another temporary status without having to leave the United States. Typical examples of this process are changing from a student visa status to H-1B. Usually, a successful COS is evidenced by the USCIS issuing you a new I-94.
Changing status from a temporary visa to a green card within the United States is also a change of status, but it is technically referred to as Adjustment of Status (AOS).
I have reviewed the recent lawsuit settlement where the USCIS has agreed to consider H-4 holders to be eligible to continue working while their timely filed EAD extension is pending. Unfortunately, the settlement seems to state that the right to work is only co-extensive with your I-94 duration. Therefore, you do not have the right to continue working for 180 days; only till your I-94 expires. While it is better than nothing, the settlement is not everything that we would like to see.
The US State Department has made the following announcement today regarding the phased resumption of visa services.