1.10.0

• Added a record-based transfer layer for sequential and direct formatted and unformatted files, including checked REC/RECL addressing and fixed record boundaries.
• Added portable little-endian sequential-unformatted framing, corrupt-record detection, partial-record cleanup, and record-aware BACKSPACE.
• Added binary transfers for supported scalar kinds, complex and character values, fixed arrays, implied DO loops, and default or defined I/O for derived values.
• Unified IOSTAT, IOMSG, ERR, END, and EOR handling while enforcing connected-unit action, form, access, and record constraints without generated abort placeholders.
• Corrected direct formatted padding, slash editing, format reversion, missing-record handling, and NEXTREC advancement across fixed-length records.
• Added pre-emission validation for invalid record controls and derived values whose dynamic components require defined I/O.
• Added strict C17 execution, corrupt-file regression, sanitizer coverage, and generated-C/native-Fortran record-I/O differentials to CI.