mirror of
https://github.com/upx/upx.git
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529 lines
23 KiB
Plaintext
529 lines
23 KiB
Plaintext
==================================================================
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User visible changes for UPX
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==================================================================
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Changes in 4.0.0 (XX XXX 2021):
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* Switch to semantic versioning
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* SECURITY NOTES: emphasize the security context in the docs
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* Add support for EFI files (PE x86; Kornel Pal)
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* bug fixes - see https://github.com/upx/upx/milestone/6
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Changes in 3.96 (23 Jan 2020):
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* bug fixes - see https://github.com/upx/upx/milestone/5
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Changes in 3.95 (26 Aug 2018):
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* Flag --android-shlib to work around bad design in Android
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* Flag --force-pie when ET_DYN main program is not marked as DF_1_PIE
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* Better compatibility with varying layout of address space on Linux
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* Support for 4 PT_LOAD layout in ELF generated by binutils-2.31
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* bug fixes, particularly better diagnosis of malformed input
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* bug fixes - see https://github.com/upx/upx/milestone/4
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Changes in 3.94 (12 May 2017):
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* Add support for arm64-linux (aka "aarch64").
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* Add support for --lzma compression on 64-bit PowerPC (Thierry Fauck).
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* For Mach, "upx -d" will unpack a prefix of the file (and warn).
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* Various improvements to the ELF formats.
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* bug fixes - see https://github.com/upx/upx/milestone/3
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Changes in 3.93 (29 Jan 2017):
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* Fixed some win32/pe and win64/pe regressions introduced in 3.92
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* bug fixes - see https://github.com/upx/upx/milestone/2
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Changes in 3.92 (11 Dec 2016):
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* INFO: UPX has moved to GitHub - the new home page is https://upx.github.io
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* IMPORTANT: all PE formats: internal changes: reunited the diverged source
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files - please report all regressions into the bug tracker and try UPX 3.91
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in case of problems.
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* Support Apple MacOS 10.12 "Sierra", including more-robust de-compression.
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* Explicitly diagnose Go-language bad PT_LOAD; recommend hemfix.c.
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https://sourceforge.net/p/upx/bugs/195/ https://github.com/pwaller/goupx
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* Fix CERT-FI Case 829767 UPX command line tools segfaults.
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Received by UPX Team on 2015-May-08; originally reported
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by Codenomicon to NCSC-FI on 2015-01-08.
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The vulnerabilities were discovered by Joonas Kuorilehto and
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Antti Häyrynen from Codenomicon.
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* bug fixes - see https://github.com/upx/upx/milestone/1
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Changes in 3.91 (30 Sep 2013):
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* Added experimental support for Windows 64-bit PE files, based on
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work by Stefan Widmann. Please use for testing only!
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* bug fixes
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==================================================================
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Changes in 3.09 (18 Feb 2013):
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* New option --preserve-build-id for GNU ELF.
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* Allow for code signing and LC_UUID on Mac OS X executables.
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* Allow non-contiguous LC_SEGMENTs and 0==.vmsize for Mach-O.
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* Allow zero-filled final page in PackUnix::canUnpack().
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* bug fixes
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Changes in 3.08 (12 Dec 2011):
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* Fix allocation in runtime stub for darwin.macho-entry (i386 and amd64).
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* Compress shared library on ELF i386 only [ld.so threatens even this case].
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* Attempt to support ELF on QNX 6.3.0 for armel (experimental).
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* Better diagnostic when ELF -fPIC is needed.
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* PT_NOTE improvements for *BSD.
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* Preserve more ELF .e_flags on ARM.
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* Minor code improvements for ELF stubs.
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* Defend against another flavor of corrupt PE header.
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* bug fixes
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Changes in 3.07 (08 Sep 2010):
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* win32/pe: fixed relocation handling for files with *no* TLS callbacks
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[severe bug introduced in 3.06]
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Changes in 3.06 (04 Sep 2010):
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* win32/pe: TLS callback support contributed by Stefan Widmann. Thanks!
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* bug fixes
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Changes in 3.05 (27 Apr 2010):
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* i386-linux and amd64-linux support shared libraries (DT_INIT must
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exist, all info needed by runtime loader must be first in .text, etc.)
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* Linux /proc/self/exe now is preserved by default, by leaving behind
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one page. New compress-time option --unmap-all-pages is available.
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* Withdraw support for shared libraries on Darwin (Apple Mac OS X)
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because upx does not understand enough about .dylib.
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* bug fixes
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Changes in 3.04 (27 Sep 2009):
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* new format Mach/AMD64 supports 64-bit programs on Apple Macintosh.
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* new formats Dylib/i386 and Dylib/ppc32 support shared libraries
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[such as browser plugins] on Darwin (Apple Macintosh). An existing
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-init function (LC_ROUTINES command) is required.
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* new format vmlinuz/armel for Debian NSLU2 (etc.) linux kernel
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* bvmlinuz boot protocol 2.08 for 386 Linux kernel
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* Extended ABI version 4 for armel-eabi ARM Linux ELF
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* bug fixes
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Changes in 3.03 (27 Apr 2008):
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* implement cache flushing for PowerPC (esp. model 440)
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* fix cache flushing on MIPS (>3 MiB compressed, or with holes)
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* fix MIPS big-endian
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* bug fixes
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Changes in 3.02 (16 Dec 2007):
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* fix unmapping on arm-linux.elf
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* fix error checking in mmap for i386-linux.elf [triggered by -fPIE]
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* bug fixes
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Changes in 3.01 (31 Jul 2007):
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* new options --no-mode, --no-owner and --no-time to disable preservation
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of mode (file permissions), file ownership and timestamps.
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* dos/exe: fixed an incorrect error message caused by a bug in
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relocation handling
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* new format linux/mipsel supports ELF on [32-bit] R3000
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* fix argv[0] on PowerPC with --lzma
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* bug fixes
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Changes in 3.00 (27 Apr 2007):
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* watcom/le & tmt/adam: fixed a problem when using certain filters
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Changes in 2.93 beta (08 Mar 2007):
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* new formats Mach/i386 and Mach/fat support Mac OS X i686 and
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Universal binaries [i686 and PowerPC only]
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* dos/exe: LZMA is now also supported for 16-bit dos/exe. Please note that
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you have to explicitly use '--lzma' even for '--ultra-brute' here
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because runtime decompression is about 30 times slower than NRV -
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which is really noticeable on old machines.
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* dos/exe: fixed a rarely occurring bug in relocation handling
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* win32/pe & arm/pe: better icon compression handling
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Changes in 2.92 beta (23 Jan 2007):
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* new option '--ultra-brute' which tries even more variants
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* slightly improved compression ratio for some files when
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using '--brute' or '--ultra-brute'
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* bug fixes
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Changes in 2.91 beta (29 Nov 2006):
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* assorted bug fixes
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* arm/pe: fix "missing" icon & version info resource problem for wince 5
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* win32/pe & arm/pe: added option --compress-icons=3 to compress all icons
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Changes in 2.90 beta (08 Oct 2006):
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* LZMA algorithm support for most of the 32-bit and 64-bit file formats;
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use new option '--lzma' to enable
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* new format: BSD/elf386 supporting FreeBSD, NetBSD and OpenBSD
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via auto-detection of PT_NOTE or EI_OSABI
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* arm/pe: all the NRV compression methods are now supported
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(only NRV2D is missing in thumb mode)
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* linux/elf386, linux/ElfAMD: remember /proc/self/exe in environment
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* major source code changes: the runtime decompression stubs are now
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built from internal ELF objects
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==================================================================
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Changes in 2.03 (07 Nov 2006):
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* bvmlinuz/386: fix for kernels not at 0x100000; also allow x86_64
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* linux/elf386: work around Linux kernel bug (0-length .bss needs PF_W)
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Changes in 2.02 (13 Aug 2006):
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* linux/386: work around Linux kernel bug (".bss" requires PF_W)
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* linux/ppc32, mach/ppc32: compressed programs now work on a 405 CPU
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* vmlinuz/386: fixed zlib uncompression problem on DOS
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Changes in 2.01 (06 Jun 2006):
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* arm/pe: better DLL support
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* dos/exe: device driver support added
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* linux/386: Fix --force-execve for PaX, grSecurity, and strict SELinux.
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/tmp must support execve(); therefore /tmp cannot be mounted 'noexec'.
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* win32/pe & arm/pe: added new option '--keep-resource=' for
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excluding selected resources from compression
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Changes in 2.00 (27 Apr 2006):
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* linux/386: the stub now prints an error message if some strict
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SELinux mode does prevent runtime decompression and execution
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(for a fully SELinux-compatible but otherwise inferior compression
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format you can use the '--force-execve' option)
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* linux/386: worked around a problem where certain Linux kernels
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clobber the %ebx register during a syscall
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* win32/pe: disable filters for files with broken PE headers
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Changes in 1.96 beta (13 Apr 2006):
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* arm/pe: added filter support
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* win32/pe: removed an unnecessary check so that Delphi 2006 and
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Digital Mars C++ programs finally are supported
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Changes in 1.95 beta (09 Apr 2006):
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* arm/pe: added DLL support
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* arm/pe: added thumb mode stub support
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* arm/pe: added unpacking support
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* win32/pe: really worked around R6002 runtime errors
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Changes in 1.94 beta (11 Mar 2006):
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* new format: added support for arm/pe (ARM executables running on WinCE)
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* new format: added support for linux elf/amd64
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* new format: added support for linux elf/ppc32
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* new format: added support for mach/ppc32 (Apple Mac OS X)
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* win32/pe: hopefully working "load config" support
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* win32/pe: R6002 runtime errors worked around
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* win32/pe: the stub now clears the dirty stack
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Changes in 1.93 beta (07 Feb 2005):
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* vmlinuz/386: fixes to support more kernels
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Changes in 1.92 beta (20 Jul 2004):
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* win32/pe: added option '--strip-loadconf' to strip the SEH load
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config section [NOTE: this option is obsolete since UPX 1.94]
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* win32/pe: try to detect .NET (win32/net) files [not yet supported by UPX]
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* vmlinux/386: new format that directly supports building Linux kernels
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* source code: now compiles cleanly under Win64
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Changes in 1.91 beta (30 Jun 2004):
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* djgpp2/coff: added support for recent binutils versions
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* linux/elf386, linux/sh386: lots of improvements
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* vmlinuz/386: added support for recent kernels
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* watcom/le: don't crash on files without relocations
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* win32/pe: stricter checks of some PE values
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* option '--brute' now implies '--crp-ms=999999'.
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* source code: much improved portability using ACC, the
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Automatic Compiler Configuration
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* source code: compile fixes for strict ISO C++ compilers
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* source code: compile fixes for Win64
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* re-synced with upx 1.25 branch
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Changes in 1.90 beta (11 Nov 2002):
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* implemented several new options for finer compression control:
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'--all-methods', '--all-filters' and '--brute'
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* ps1/exe: new format - UPX now supports PlayStation One programs
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* linux/386: added the option '--force-execve'
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* vmlinuz/386: better kernel detection and sanity checks
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* re-synced with upx 1.24 branch
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* documentation updates
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Changes in 1.11 beta (20 Dec 2000):
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* vmlinuz/386: new format - UPX now supports bootable linux kernels
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* linux/elf386: added the new ELF direct-to-memory executable format - no
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more temp files are needed for decompression!
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* linux/sh386: added the new shell direct-to-memory executable format - no
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more temp files are needed for decompression!
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* reduced overall memory requirements during packing
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* quite a number of internal source code rearrangements
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==================================================================
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Changes in 1.25 (29 Jun 2004)
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* INFO: http://upx.sourceforge.net is the permanent UPX home page
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* watcom/le: don't crash on files without relocations
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* win32/pe: stricter checks of some PE values
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* source code: much improved portability using ACC, the
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Automatic Compiler Configuration
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* source code: compile fixes for strict ISO C++ compilers
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* source code: compile fixes for Win64
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Changes in 1.24 (07 Nov 2002)
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* djgpp2/coff: stricter check of the COFF header to work around a
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problem with certain binutils versions
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Changes in 1.23 (05 Sep 2002)
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* atari/tos: fixed an unpacking problem where a buffer was too
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small (introduced in 1.22)
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* linux/386: don't give up too early if a single block turns out
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to be incompressible
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* documentation: added some quick tips how to achieve the best
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compression ratio for the final release of your application
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* fixed a rare situation where the exit code was not set correctly
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Changes in 1.22 (27 Jun 2002)
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* atari/tos: the stub now flushes the CPU cache to avoid
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problems on 68030+ machines
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* source code: additional compiler support for Borland C++,
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Digital Mars C++ and Watcom C++
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Changes in 1.21 (01 Jun 2002)
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* New option '--crp-ms=' for slightly better compression at the cost
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of higher memory requirements during compression.
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Try 'upx --best --crp-ms=100000'. See the docs for more info.
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* source code: portability fixes
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* source code: compile fixes for g++ 3.0 and g++ 3.1
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Changes in 1.20 (23 May 2001)
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* slightly faster compression
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* work around a gcc problem in the latest djgpp2 distribution
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* watcom/le: fixed detection of already compressed files
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* win32/pe: do not compress RT_MANIFEST resource types
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* win32/pe: improved the error message for empty resource sections
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* [NOTE: the jump from 1.08 to 1.20 is to avoid confusion with
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our unstable development releases 1.1x and 1.9x]
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Changes in 1.08 (30 Apr 2001)
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* new native port to atari/tos
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* win32/pe: shortened the identstring
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* source code: portability fixes - UPX now builds cleanly under m68k CPUs
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Changes in 1.07 (20 Feb 2001)
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* win32/pe: corrected the TLS callback check
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* win32/pe: really fixed that rare bug in relocation handling
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* win32/pe: experimental support for SizeOfHeaders > 0x1000
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* win32/pe: check for superfluous data between sections
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* win32/pe: compressing screensavers (.scr) should finally work
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Changes in 1.06 (27 Jan 2001)
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* win32/pe: the check for TLS callbacks introduced in 1.05
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was too strict - disabled for now
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* dos/com: decreased the decompressor stack size a little bit
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Changes in 1.05 (24 Jan 2001)
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* win32/pe: refuse to compress programs with TLS callbacks
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* win32/pe: stub changes to avoid slowdowns with some virus monitors
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* win32/pe: reverted the relocation handling changes in 1.04
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* linux/386: dont try to compress Linux kernel images (have a look
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at the unstable UPX 1.1x beta versions for that)
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Changes in 1.04 (19 Dec 2000)
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* dos/exe: fixed an internal error when using '--no-reloc'
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* win32/pe: fixed a rare bug in the relocation handling code
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* some tunings for the default compression level
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Changes in 1.03 (30 Nov 2000)
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* linked with a new version of the NRV compression library:
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- improved compression ratio a little bit
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- overall significantly faster compression
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- much faster when using high compression levels like '-9' or '--best'
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- much faster with large files
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* atari/tos: added support for FreeMiNT
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* the 32-bit DOS version now uses the new CWSDSTUB extender
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Changes in 1.02 (13 Sep 2000)
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* watcom/le: fixed a problem with the Causeway extender
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* win32/pe: don't automatically strip relocs if they seem needed
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* support multiple backup generations when using '-k'
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* updated the console screen driver
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Changes in 1.01 (09 Apr 2000)
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* win32/pe: fixed an uncompression problem in DLLs with empty
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fixup sections
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* win32/pe: fixed another rare uncompression problem - a field in the
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PE header was set incorrectly
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Changes in 1.00 (26 Mar 2000)
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* documentation updates
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* watcom/le: do not duplicate the non-resident name table
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* win32/pe: fixed an import handling problem: sometimes too much data
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could be deleted from a file -> the uncompressed file would not work
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anymore
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Changes in 0.99.3 (07 Mar 2000)
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* win32/pe: fixed a rare problem in the stub string handling part
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Changes in 0.99.2 (02 Mar 2000)
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* dos/exe: fixed a typo causing an internal error (introduced in 0.99.1)
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Changes in 0.99.1 (29 Feb 2000)
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* win32/pe: fixed some object alignments which were causing
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problems when loading compressed DLLs under Windows NT/2000
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Changes in 0.99 (25 Feb 2000)
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* FULL SOURCE CODE RELEASED UNDER THE TERMS OF THE GNU GPL
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* win32/pe: changed default to '--strip-relocs=1'
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* dos/com and dos/sys: fixed a bad decompressor problem
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* linux/386: the counter for the progress indicator was off by one
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Changes in 0.94 (06 Dec 1999)
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* win32/pe: the stub now calls ExitProcess in case of import errors
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* under DOS and Windows, the environment variable UPX now accepts
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a '#' as replacement for '=' because of a COMMAND.COM limitation
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Changes in 0.93 (22 Nov 1999)
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* win32/pe: fixed --strip-relocs problem with uncompression
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* win32/pe: fixed a bug which could produce a broken decompressor stub
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* linux/386: yet another FreeBSD compatibility fix
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Changes in 0.92 (14 Nov 1999)
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* win32/pe: really fixed that one line (see below)
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Changes in 0.91 (13 Nov 1999)
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* win32/pe: an important one-line fix for the newly introduced problems
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* dos/com and dos/sys: fixed an internal error
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* dos/exe: correctly restore cs when uncompressing
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Changes in 0.90 (10 Nov 1999)
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* all formats: '--overlay=copy' now is the default overlay mode
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* improved compression ratio for most files
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* win32/pe: uncompression is finally supported
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* win32/pe: never compress REGISTRY resources
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* win32/pe: headersize was not set in PE header
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* win32/pe: resource handling is rewritten
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* win32/pe: the last :-) TLS problem is fixed
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* win32/pe: somewhat less memory is required during compression
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* linux/386: fixed compression of scripts which was broken since 0.71
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* linux/386: more FreeBSD compatibility issues
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* changed option: '-i' now prints some more details during compression
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(not finished yet)
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Changes in 0.84 (04 Oct 1999)
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* dos/exe: fixed a rare problem where the decompressor could crash
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* some other minor fixes
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Changes in 0.83 (17 Sep 1999)
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* dos/exe: fixed minimal memory requirement problem for some files
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* win32/pe: fixed a bug which caused a crash in some compressed files
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* linux/386: various improvements in the stub; also, for the sake
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of FreeBSD users, the stub is now branded as Linux/ELF
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Changes in 0.82 (16 Aug 1999)
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* dos/exe: fixed a decompressor bug which could cause crash on some files
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* linux/386: section headers are now stripped from the stub so that
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'strip' won't ruin a compressed file any longer
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* wc/le: support for stack not in the last object disabled again
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* win32/pe: removed some unneeded data
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Changes in 0.81 (04 Aug 1999)
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* win32/pe: fixed an important bug in import handling
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* dos/com: fixed an internal error that could happen with very small files
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Changes in 0.80 (03 Aug 1999)
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* you can set some default options in the environment var 'UPX'
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* dos/com: the decompressor stub now checks for enough free memory
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* dos/exe: decompressor rewritten, some bugs are fixed
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* dos/exe: new option '--no-reloc': no relocation data is put into
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the DOS header
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* tmt/adam: added support for more stubs, detect already packed files
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* tmt/adam: new option '--copy-overlay'
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* wc/le: reduced memory requirement during uncompression
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* wc/le: support files which do not contain their stack in the last object
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* wc/le: fixed a bug which could cause a crash, improved relocation
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handling
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* wc/le: new option '--copy-overlay'
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* win32/pe: '--compress-icons=2' is now the default
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* win32/pe: even better TLS support
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* win32/pe: versioninfo works on NT
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* win32/pe: import by ordinal from kernel32.dll works
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* win32/pe: other import improvements: importing a nonexistent DLL
|
|
results in a usual Windows message, importing a nonexistent function
|
|
results in program exit (instead of crash ;-)
|
|
* win32/pe: new option: '--compress-resources=0'
|
|
* win32/pe: reduced memory requirement during uncompression, some
|
|
files might even require LESS memory when they're compressed
|
|
* win32/pe: TYPELIBs should work now
|
|
* win32/pe: improved relocation handling, 16-bit relocations should work
|
|
* win32/pe: new option '--strip-relocs' (only if you know what you are doing)
|
|
* win32/pe: new option '--copy-overlay'
|
|
* important internal changes: now the stubs are built at runtime
|
|
|
|
Changes in 0.72 (12 May 1999)
|
|
* tmt/adam: fixed a serious problem in the decompressor stub; all
|
|
compressed tmt files should be recompressed
|
|
* win32/pe: fixed the 'shared sections not supported' warning:
|
|
read-only shared sections are fine
|
|
* win32/pe: never compress TYPELIB resources
|
|
* win32/pe: compressed files are hopefully less suspicious to heuristic
|
|
virus scanners now
|
|
* linux/386: minor decompressor stub updates, nicer progress bar
|
|
|
|
Changes in 0.71 (19 Apr 1999)
|
|
* dos/exe: added option '--no-overlay'
|
|
* linux/386: various improvements in the stub, most notably the
|
|
overhead for an extra cleanup process has been removed
|
|
* win32/pe: added support for export forwarders
|
|
* win32/pe: added support for DLLs without entry point or imports
|
|
* win32/pe: yet another .bss fix
|
|
* win32/pe: new option '--compress-icons=2': compress all icons
|
|
which are not in the first icon directory
|
|
* win32/pe: rearranged stub to avoid false alerts from some virus scanners
|
|
|
|
Changes in 0.70 (30 Mar 1999)
|
|
* added support for linux/386 executables
|
|
* improved compression ratio quite a bit
|
|
* added new compression level '--best' to squeeze out even some more bytes
|
|
* win32/pe: TLS support is much better now
|
|
* win32/pe: --compress-icons=0 should now work as well
|
|
* the usual minor fixes for win32/pe
|
|
|
|
Changes in 0.62 (16 Mar 1999)
|
|
* win32/pe: --compress-icons and --compress-exports are on now by default
|
|
* win32/pe: --compress-icons should really work now
|
|
* win32/pe: fixed a problem with embedded .bss sections
|
|
|
|
Changes in 0.61 (08 Mar 1999)
|
|
* atari/tos: fixed a problem where the bss segment could become too small
|
|
|
|
Changes in 0.60 (06 Mar 1999)
|
|
* win32/pe: fixed file corruption when the size of the export data is invalid
|
|
* win32/pe: fixed a problem with empty resource data
|
|
* win32/pe: compressed file alignment set to minimum value
|
|
* win32/pe: made all compressed sections writable
|
|
* fixed some other win32/pe bugs
|
|
* fixed an address optimization problem for some not Watcom LE files
|
|
* fixed a bug which could make UPX hang when an exe header contained
|
|
an illegal value
|
|
* added some compression flags for the win32/pe format
|
|
* added support for Atari ST/TT executables (atari/tos)
|
|
* improved compression ratio
|
|
* improved compression speed
|
|
|
|
Changes in 0.51 (14 Jan 1999)
|
|
* fixed a small bug in the PE header that would prevent some compressed
|
|
win32/pe executables from running under Windows NT and WINE
|
|
|
|
Changes in 0.50 (03 Jan 1999)
|
|
* added support for PE format executables (win32/pe & rtm32/pe)
|
|
* added support for TMT executables (tmt/adam)
|
|
* fixed a dos/sys bug that affected OpenDOS
|
|
|
|
Changes in 0.40 (05 Oct 1998)
|
|
* improved compression ratio
|
|
* fixed a small but fatal bug in dos/sys introduced in 0.30
|
|
* fixed a rare bug in dos/exe
|
|
* worked around a bug in djgpp's strip 2.8
|
|
* djgpp/coff: Allegro packfile support should work now
|
|
* added dos/exeh compression method (works on 386+)
|
|
|
|
Changes in 0.30 (27 Jul 1998)
|
|
* fixed a serious bug in the 32-bit compressors - please don't use
|
|
djgpp/coff and watcom/le compressed files from previous versions,
|
|
some of them are possibly damaged !
|
|
* the 16-bit uncompressors are a little bit shorter & faster
|
|
* fixed progress indicator for VESA and SVGA text modes
|
|
|
|
Changes in 0.20 (05 Jul 1998)
|
|
* second public beta release
|
|
* too many changes to list here
|
|
|
|
Changes in 0.05 (26 May 1998)
|
|
* first public beta release
|
|
|
|
|
|
# vim:set syntax=off tw=0 ts=4 sw=4 et: -*- coding: utf-8 -*-
|