Dear Pankaj - The updated Journal Citation Reports (JCR) rankings are typically released mid-year in June/July. As a point of reference, the 2020 JCR was released by Clarivate Analytics on June 29, 2020. Hope this helps!
Best regards, Hamed Bazaz | JournalEdit.com | Founder, Managing Director
below you can find the latest report (Web of Science or known as Clarivate) plus journals Quartile ranks. https://dx.doi.org/10.13140/RG.2.2.22107.59686
Impact factors are revised every year on dates between 19th June-30th June. However, Scopus release their SJR data before June, which is expected in April, I guess.