New --replace option to replace pattern matches in the output with custom formatted text with % fields. This option can be combined with any other option, including -y (--any-line) to pass through a file with substitutions applied to the output. To make ugrep more user-friendly, the new --help format option argument displays a summary of % format fields, the new --help regex option argument displays an overview of regular expression pattern syntax, and the new --help globs option argument displays the gitignore-style glob syntax and conventions used by ugrep. Increased searching speed of large files with AVX optimizations applied to the default pattern matcher engine. AVX optimizations were largely disabled (only partially applied) to make ugrep binary portable on Linux platforms since ugrep v3.3.5, requested by issue trackers #103 and #143. Binary portability over x86/x64 now works better with new multi-version code selected at runtime to run the original faster pattern matching engine. More coming soon!