New features Add support for reading Tofwerk TofDAQ HDF5 files (.h5) from fibTOF FIB-SIMS instruments, returning peak-integrated 4D data (depth, y, x, m/z) for opened files or a sum spectrum + TIC map for raw files. See tofwerk-format. (#490) Added support for reading Balzers/Pfeiffer Quadstar mass spectrometry files in .sac and .sbc formats. (#509) Enhancements Improve MRC file reader: add support for loading virtual and external images as HyperSpy navigators, with regex-based discovery of related files and streamlined metadata structure. (#515) Bug Fixes Handle py4DSTEM data saved with NCEM EMD version 1.0 (#499) Parse and write the rsciio version when using the msa-format writer. (#504) Fixed "OverflowError: Python int too large to convert to C int" on Windows and other 32-bit systems when Daks computes the lazily-loaded blockfiles (#506) Improved Documentation Document DISABLE_C_EXTENSIONS to install development version of rosettasciio without a compiler. (#507)