DOS ain't dead

Changes in 4.1.0 (08 Aug 2023):
* ELF: handle shared libraries with more than 2 PT_LOAD segments
* bug fixes - see https://github.com/upx/upx/milestone/11

WOW...

https://upx.github.io

Dos version:

https://github.com/upx/upx/releases/download/v4.1.0/upx-4.1.0-dos.zip

> Changes in 4.1.0 (08 Aug 2023):
> * ELF: handle shared libraries with more than 2 PT_LOAD segments
> * bug fixes - see https://github.com/upx/upx/milestone/11
Seem to be no differences in DOS .EXEs from version 4.0.0, and the UPX executable itself is bloated by almost 80k more since 4.0.0. Speed is even a bit less in the 4.1.0 compile, possibly due to more bloat.

Maybe it fixes some win32 app/dll corruptions after compression, even in some cases upx crashed itself. I reported some bugs years ago, I don't remember, maybe I should check with new upx...

---
DOS gives me freedom to unlimited HW access.

UPX 4.2.0 released

Changes in 4.2.0 (26 Oct 2023):
* win32/pe and win64/pe: stricter relocation checks; please report regressions
* new option '--link' to preserve hard-links (Unix only; use with care)
* add support for NO_COLOR env var; see https://no-color.org/
* disable macOS support until we fix compatibility with macOS 13+
* bug fixes - see https://github.com/upx/upx/milestone/13


See:

https://upx.github.io

Dos version:

https://github.com/upx/upx/releases/download/v4.2.0/upx-4.2.0-dos.zip

UPX 5.0.0 released

User visible changes for UPX
==================================================================

Changes in 5.0.0 (20 Feb 2025):
* ELF: use of memfd_create supports Enforcing mode of SELinux
* ELF: two-step de-compression enables future per-PT_LOAD work
* ELF: --unmap-all-pages completely avoids /proc/self/exe
* ELF: PT_MIPS_ABIFLAGS is now forwarded into the compressed output;
qemu-mips can choose the right floating-point emulation
* ELF: many minor internal changes fix nits revealed by fuzzing
* bug fixes - see https://github.com/upx/upx/milestone/18

Changes in 4.2.4 (09 May 2024):
* bug fixes - see https://github.com/upx/upx/milestone/17

Changes in 4.2.3 (27 Mar 2024):
* bug fixes - see https://github.com/upx/upx/milestone/16

Changes in 4.2.2 (03 Jan 2024):
* bug fixes - see https://github.com/upx/upx/milestone/15

Changes in 4.2.1 (01 Nov 2023):
* linux: /proc/self/exe now is optional
* windows: use SetFileTime to preserve sub-second file timestamps
* official Windows builds: revert activeCodePage change introduced in 4.2.0
* bug fixes - see https://github.com/upx/upx/milestone/14
==================================================================



See:

https://upx.github.io

Dos version:

https://github.com/upx/upx/releases/download/v5.0.0/upx-5.0.0-dos.zip

UPX 5.2.0 released

See:

https://upx.github.io

Dos version:

https://github.com/upx/upx/releases/download/v5.2.0/upx-5.2.0-dos.zip

==================================================================

Changes in 5.2.0 (08 Jun 2026):
* new format cpm86/cmd
* bug fixes - see https://github.com/upx/upx/milestone/23

Changes in 5.1.1 (05 Mar 2026):
* ELF: MIPS r3000 (32-bit) shared libraries are supported
* bug fixes - see https://github.com/upx/upx/milestone/22

Changes in 5.1.0 (07 Jan 2026):
* ELF: new format linux/riscv64
* bug fixes - see https://github.com/upx/upx/milestone/21

Changes in 5.0.2 (20 Jul 2025):
* bug fixes - see https://github.com/upx/upx/milestone/20

Changes in 5.0.1 (06 May 2025):
* bug fixes - see https://github.com/upx/upx/milestone/19

Even the UPX 5.2.0 still can't pack FreePascal 3.x.y DOS executables

---
DOS-u-akbar!