This is the latest MATLAB-CDF V3.9.2 patch for all systems. This patch includes modules main modules, e.g., spdfcdfread, spdfcdfwrite, spdfcdfinfo, spdfcdfupdate, etc., that provide read/write/update functions to CDF files. It also has functions for CDF epoch data. Get help information from each individual .m script after the downloaded file is expanded. Please note: We no longer make 32-bit modules any more. This directory contains the following files: AAREADME.txt This is the readme text file you're viewing. HOWTO-install.txt This is the help information for installing the CDF patches for MATLAB. matlab_cdf_lin64.tar.gz This is the compressed file for Linux box running on Intel for 64-bit MATLAB. Once extracted, the files will be placed into matlab_cdf392_patch-64 directory. matlab_cdf_maci64.tar.gz This is the compressed file for Mac OS X box running on Intel for 64-bit MATLAB before 2023b release. Once extracted, the files will be placed into matlab_cdf392_patch-64 directory. matlab_cdf_maca64.tar.gz This is the compressed file for Mac OS X box running on Apple Silicon for 64-bit MATLAB of 2023b release and later. Once extracted, the files will be placed into matlab_cdf392_patch-64 directory. matlab_cdf_win64.zip This is ithe compressed file for Windows running 64-bit MATLAB. All modules are made with MS Visual Studio 2022 and MATLAB R2025a. Once extracted, the files will be placed into matlab_cdf392_win64 directory. matlabhelp.txt This file contains the help text information for all modules, i.e., spdfcdfread, spdfcdfwrite, spdfcdfinfo, spdfcdfupdate, and others.