New in This Version

2026.08.02

• Debugger: normalize 16-bit segmented offsets for address display/lookup and avoid false “[illegal]” memory operand reports in AnalyzeInstruction() (cimarronm)
• Fixed character rendering and mouse cursor display in DOS/V Japanese mode. (nanshiki)
• Fixed build error of OSFREE release builds (maron2000)
• Added floppy BPB sanity check, and rearranged existing floppy BPB check code (maron2000)
• Fixed window resizing (OpenGL, SDL2) (misty7666)
• Updated Nuked-OPL3-fast to v1.8-fast.3 (tgies)
• Added support for nested subdirectories in Z drive (maron2000)
• Added experimental “ethnet” command and protocol for NE2000 emulation. Instead of using the pcap promiscious mode, which doesn’t work over Wi-fi, a client server setup can be configured to emulate a private lan between instances of DOSBox-X either on localhost or on the local area network. The ethnet command is deliberately built so that client and server set up is the same command structure as the “ipx” command used to set up an IPX network in DOSBox and DOSBox-X. (joncampbell123)
• FAT driver performance improvements, at least for directory enumeration, file creation, reading, and writing (joncampbell123).
• Added PC3270 and Olivetti machine types (firevaran).
• Fixed fatDrive error paths so truncated boot-sector reads no longer look like successful mounts, and early returns now close diskfile handles instead of leaking them. (cimarronm)
• INT 33h: In PC-98 mode, do not maintain a hide/show display count to match real mouse driver behavior (nanshiki)