cas-sc.cls and cas-dc.cls are the two new class files created for typesetting Elsevier's journal articles which go through Complex Article Service (CAS) workflow. These are now accepted for submitting articles, both in Elsevier's electronic submission system and elsewhere. Bugs and problems with elsarticle.cls may be reported to the developers of the class via elsarticle@stmdocs.in. The file manifest.txt provides a list of the files in the elsarticle-cas bundle. The following are the main files available: - cas-sc-template.tex, template file for single column journals - cas-dc-template.tex, template file for double column journals - cas-sc-template.pdf, PDF of the cas-sc-template.tex - cas-dc-template.pdf, PDF of the cas-ddc-template.tex - cas-common.sty, additional macro package for formatting model2-names.bst, BibTeX style file - cas-twitter.jpeg, cas-linkedin.jpeg, cas-url.jpeg, cas-gplus.jpeg, cas-facebook.jpeg, cas-email.jpeg - thumbnail images of social networking sites The documentation file is elsdoc-cas.tex in the doc directory. To compile it: 1. pdflatex elsdoc-cas 2. pdflatex elsdoc-cas 3. pdflatex elsdoc-cas or use the makefile. Use the target `all' (eg: make all) in doc directory. The above procedure will create a print version, namely elsdoc-cas.pdf. Copyright 2019-2020, Elsevier. Bugs, feature requests, suggestions and comments may be mailed to elsarticle@stmdocs.in. cas-sc.cls, cas-dc.cls related documentations and supporting packages are released under the LATEX Project Public Licence, either version 1.2 or any later version. This work has the LPPL maintenance status 'author-maintained'.