DOS ain't dead

Berlin, Germany,
01.02.2020, 23:11

UPX version 3.96 available (Announce)

The UPX Team released version 3.96 on 23 January 2020. It is a bugfix release.

Changes in 3.96 (23 Jan 2020): * bug fixes - see https://github.com/upx/upx/milestone/5

I found nothing DOS-specific.

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dggionco

Buenos Aires - Argentina,
29.10.2022, 03:28

@ rr

UPX version 3.96 available

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UPX 4.0.0 has been released.

https://upx.github.io

Changes in 4.0.0 (28 Oct 2022):
* Switch to semantic versioning
* SECURITY NOTES: emphasize the security context in the docs
* Support easy building from source code with CMake
* Support easy rebuilding the stubs from source with Podman/Docker
* Add integrated doctest C++ testing framework
* Add support for EFI files (PE x86; Kornel Pal)
* bug fixes - see https://github.com/upx/upx/milestone/6
* bug fixes - see https://github.com/upx/upx/milestone/7

Laaca

Czech republic,
29.10.2022, 09:31

@ dggionco

UPX version 3.96 available

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Cool!
This new version is able to compress the FPC 3.x.y compiled files (for DOS).
Finaly!!!

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DOS-u-akbar!

dggionco

Buenos Aires - Argentina,
29.10.2022, 15:35
(edited by dggionco, 29.10.2022, 16:52)

@ Laaca

UPX version 3.96 available

Post reply

> Cool!
> This new version is able to compress the FPC 3.x.y compiled files (for
> DOS).
> Finaly!!!

WOW... :-)

Dos version:

https://github.com/upx/upx/releases/download/v4.0.0/upx-4.0.0-dos.zip

From BUGS.txt:

Limitations
============

djgpp2/coff
-----------
* all overlays (except Allegro pakfiles) are silently stripped

dos/exe
-------
* normal dos/exes with new exe headers
* max ~24000 relocation records (...should be enough for everyone ;-)
* exe + sys combined images

watcom/le
---------
* 16-bit selector alias fixups
* 16-bit offset relocation for objects larger than 4 KiB
* 16:16 fixups

If you need any of the above (they're very rare), send us an URL of a
test file.

* 16-bit objects are not loaded into DOS memory
* There is still a problem with the wdosx extender: if you compress a
watcom/le file which does NOT contain the wdosx extender, and after this
you bind the wdosx stub to the compressed file, then it will work.
Otherwise it won't.
* unpacked pmwlite compressed programs might not work when compressed
with UPX (this is a bug in pmwunlite)

win32/pe
--------
* writable shared sections (`--force' *may* work)
* certificates in the image
* compressing files which contain a big BSS requires lots of memory
during compression

Rugxulo Usono, 13.03.2023, 00:24 @ Laaca	UPX version 4.0.2 available Post reply
	> Cool! > This new version is able to compress the FPC 3.x.y compiled files (for > DOS). > Finaly!!! Are you sure? Trying UPX 4.0.2 with some simple FPC 3.2.2 (Go32v2) .EXEs just gives a GPF crash.

dggionco Buenos Aires - Argentina, 29.11.2022, 10:47 @ dggionco	UPX version 3.96 available Post reply
	UPX 4.0.1 has been released. This release fixes several bugs. https://upx.github.io Dos version: https://github.com/upx/upx/releases/download/v4.0.1/upx-4.0.1-dos.zip

CandyMan 08.02.2023, 00:31 @ dggionco	UPX version 4.0.2 available Post reply
	UPX 4.0.2 has been released.

UPX version 3.96 available (Announce)

UPX version 3.96 available

UPX version 3.96 available

UPX version 3.96 available

UPX version 4.0.2 available

UPX version 3.96 available

UPX version 4.0.2 available