Single-level specific humidity data issue

Datasets and Usage
1

Could you please tell me what the single-level specific humidity data in the ERA5 hourly data on single levels from 1940 to present has been renamed to

2

Hi,
please have a look at guideline 10 at the following link to compute specific humidity with ERA5 data:
https://confluence.ecmwf.int/display/CKB/ERA5%3A+data+documentation#heading-Guidelines

Thanks