You can find the official installation files and source code for version 1.8.14 across several reputable repositories. Download Doxygen

Doxygen 1.8.14 Download and Comprehensive Guide , released on December 25, 2017 , is a widely-used version of the standard tool for generating documentation from annotated C++ and other source code. While newer versions like 1.17.0 are now available, version 1.8.14 remains a common requirement for legacy build environments and specific Linux distributions. Download Sources for Doxygen 1.8.14