We do not have a download file for the latest version (4.2.1.4127), but you can try downloading it from the developer's site
Download version 2.7.1.1888 from Software Informer
Scanned by 78 antivirus programs on Aug 18, 2024.
The file is clean, see the report.
Version: 2.7.1.1888 (x86/x64)
Date update: Aug 3, 2018
File name: kakaotalk_setup.exe
Size: 36.5 MB