It is mentioned in the Readme file in the crack folder.
Version 2.5.3 was successfully installed and activated on 27 Mordad 1403 on Windows 10 64-bit edition and - as shown in the image -
Download Serif Affinity Designer 2.6.2.3228 x64 Multilingual
Download Serif Affinity Designer 2.5.3.2516 x64 Multilingual
Download Affinity Designer 2.6.2 macOS Multilingual
Download Affinity Designer 2.5.6 macOS Multilingual
Download Serif Affinity Designer 1.10.5.1342 x64 Multilingual Portable
file password link
Windows version: 586 MB
Mac version: 733 MB
Portable version: 398 MB