Version History

Version History

See also: Architecture, Building

Version	Description
v1.0.0	Base kernel, VGA text mode, GDT/IDT/ISR/IRQ, PIT timer, PS/2 keyboard, serial, bitmap physical allocator, identity paging, shell with basic commands
v1.1.0	Ramdisk VFS + shell commands (ls/cd/cat/touch/mkdir/rm/cp/mv/echo/clear/help)
v1.2.0	Real networking (RTL8139, ARP, IP, UDP, ICMP/ping)
v2.0.0	Clean slate: removed all hacking/offensive code
v2.0.1	DOOM game integration (VGA mode 13h, doomgeneric, shell command)
v2.1.0	Preemptive multitasking, interrupt-driven I/O, pipe support, diff command
v2.1.1	Full TCP stack, RTL8139 fixes, GUI/window compositor, PC speaker, bitmap font
v2.2.0	GUI auto-boot: NyxOS Desktop at startup instead of text shell
v2.3.0	Real EXT2 read support: VFS mount layer, auto-mount at /mnt, ls/cd/cat on ext2
v2.4.0	Sound Blaster 16 DMA/IRQ audio driver (sb16play command)
v3.0.0	ELF userspace loader, initramfs, per-process paging, ring 3 execution, int 0x80 syscalls
v3.1.0	RTC driver, more syscalls, libc, initramfs auto-boot, desktop polish
v4.0.0	Full x86_64 native (long mode, 4-level paging, syscall/sysret, ELF64, ring 3)
v4.1.0	Higher-half kernel mapping, user/kernel page-table isolation, CR3 switching
v4.2.0	NX bit + SMEP, Local APIC + I/O APIC, CPUID, IST for double fault/NMI
v5.0.0	Full GUI suite: Text Editor, Image Viewer, Sound Test. No crashes, 0 warnings
v5.1.0	Stability: TSS alignment fix, GDT limit, APIC/PIC masking, VGA font fix
v5.3.0	Login system: boot animation, EXT2 credential storage, framebuffer login screen
v5.4.0	Security hardening: syscall validation, opaque fds, build warning-free
v5.5.0	Ring-3 runs: ELF loader fix, syscall entry rewrite, copy_from_user, iretq return
v5.6.0	Process reaping fix, heap bug fix (slab fallback), user file I/O
v5.7.0	Per-fd offsets, streaming file I/O
v5.7.1	Fd-based I/O routes to EXT2 mounts (persistent files)
v5.7.2	Fd-based readdir on EXT2 mounts (file-manager can browse disk)
v5.7.3	DHCP networking (7 bugs fixed: IP checksum, ARP, RTL8139 RX, DHCP cookie, poll delay)
v5.7.4	Full network stack: DNS, TCP, HTTP (byte-order fixes, ARP, routing)
v5.7.5	GUI stability: CR3 switch in irq_common fixed, boot stack enlarged
v5.7.6	Preemptive scheduler + timer (PIT via I/O APIC pin 2), mtdemo
v5.7.7	Preemptive ring-3 processes, preempt_disable guards, kernel stack alias fix
v5.7.8	wait()/job control: foreground (exec+kwait) and background (spawn)
v5.7.9	Legacy blocking-exec path (setjmp/longjmp) removed
v5.7.10	Blocked sleep() + safe kill via zombie/wake_waiters
v5.7.11	Shell job control: jobs/wait commands
v5.7.12	Priority scheduling (weighted round-robin)
v5.7.13	VFS re-entrancy guard (preempt_disable)
v5.7.14	Per-process file descriptors
v5.7.15	Idle desktop yields CPU + nice/renice
v5.7.16	File Manager drag-and-drop into folders
v5.7.17	Loopback + ICMP echo replies + real ping
v5.7.18	TCP retransmission (RTO) + robust multi-segment receive
v5.7.19	TCP passive open (listen/accept) + in-guest loopback TCP
v5.7.20	NIC-side TCP listen: NyxOS serves HTTP to real clients
v5.7.21	Per-shell CWD + full-path pwd/prompt
v5.7.22	SMP: multi-core bringup + cpus command
v5.7.23	Demand paging + copy-on-write (PTE_DEMAND, PTE_COW, cowtest)
v5.7.24	GitHub Wiki live (16 pages), repo cleanup, README badge, commit rule
v5.7.25	fork() syscall — COW process clone with refcounted frames, page_directory_cow, do_fork
v5.8.0	Nyx C language runtime — nyxrt.h/nyxrt.c, first .nyx program (hello.nyx) with string interpolation and syscalls, transpiled to C, embedded in initramfs