In September 2025, Seppo Takalo developed WMTS URL encoding support for the OSGeo/gdal repository, focusing on robust handling of spaces and special characters in WMTS requests. Seppo implemented the CPLString::URLEncode() utility in C++ and integrated it into gdalhttp.cpp, ensuring that layer and tile matrix names are correctly encoded during web service interactions. Comprehensive unit and integration tests were added to validate encoding behavior and URL handling, improving reliability and interoperability across diverse WMTS services. This targeted feature addressed potential failures with non-standard layer names, demonstrating depth in C++ development, testing, and web service integration within a complex codebase.