upx/NEWS
2000-05-19 16:04:55 +00:00

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============================================================================
User visible changes for UPX
============================================================================
Changes in 1.01 (09 Apr 2000)
* win32/pe: fixed an uncompression problem in DLLs with empty
fixup sections
* win32/pe: fixed another rare uncompression problem - a field in the
PE header was set incorrectly
Changes in 1.00 (26 Mar 2000)
* documentation updates
* watcom/le: do not duplicate the non-resident name table
* win32/pe: fixed an import handling problem: sometimes too much data
could be deleted from a file -> the uncompressed file would not work
anymore
Changes in 0.99.3 (07 Mar 2000)
* win32/pe: fixed a rare problem in the stub string handling part
Changes in 0.99.2 (02 Mar 2000)
* dos/exe: fixed a typo causing an internal error (introduced in 0.99.1)
Changes in 0.99.1 (29 Feb 2000)
* win32/pe: fixed some object alignments which were causing
problems when loading compressed DLLs under Windows NT/2000
Changes in 0.99 (25 Feb 2000)
* FULL SOURCE CODE RELEASED UNDER THE TERMS OF THE GNU GPL
* win32/pe: changed default to `--strip-relocs=1'
* dos/com and dos/sys: fixed a bad decompressor problem
* linux/i386: the counter for the progress indicator was off by one
Changes in 0.94 (06 Dec 1999)
* win32/pe: the stub now calls ExitProcess in case of import errors
* under DOS and Windows, the environment variable UPX now accepts
a '#' as replacement for '=' because of a COMMAND.COM limitation
Changes in 0.93 (22 Nov 1999)
* win32/pe: fixed --strip-relocs problem with uncompression
* win32/pe: fixed a bug which could produce a broken decompressor stub
* linux/i386: yet another FreeBSD compatibility fix
Changes in 0.92 (14 Nov 1999)
* win32/pe: really fixed that one line (see below)
Changes in 0.91 (13 Nov 1999)
* win32/pe: an important one-line fix for the newly introduced problems
* dos/com and dos/sys: fixed an internal error
* dos/exe: correctly restore cs when uncompressing
Changes in 0.90 (10 Nov 1999)
* all formats: `--overlay=copy' now is the default overlay mode
* improved compression ratio for most files
* win32/pe: uncompression is finally supported
* win32/pe: never compress REGISTRY resources
* win32/pe: headersize was not set in PE header
* win32/pe: resource handling is rewritten
* win32/pe: the last :-) TLS problem is fixed
* win32/pe: somewhat less memory is required during compression
* linux/i386: fixed compression of scripts which was broken since 0.71
* linux/i386: more FreeBSD compatibility issues
* changed option: `-i' now prints some more details during compression
(not finished yet)
Changes in 0.84 (04 Oct 1999)
* dos/exe: fixed a rare problem where the decompressor could crash
* some other minor fixes
Changes in 0.83 (17 Sep 1999)
* dos/exe: fixed minimal memory requirement problem for some files
* win32/pe: fixed a bug which caused a crash in some compressed files
* linux/i386: various improvements in the stub; also, for the sake
of FreeBSD users, the stub is now branded as Linux/ELF
Changes in 0.82 (16 Aug 1999)
* dos/exe: fixed a decompressor bug which could cause crash on some files
* linux/i386: section headers are now stripped from the stub so that
`strip' won't ruin a compressed file any longer
* wc/le: support for stack not in the last object disabled again
* win32/pe: removed some unneeded data
Changes in 0.81 (04 Aug 1999)
* win32/pe: fixed an important bug in import handling
* dos/com: fixed an internal error that could happen with very small files
Changes in 0.80 (03 Aug 1999)
* you can set some default options in the environment var `UPX'
* dos/com: the decompressor stub now checks for enough free memory
* dos/exe: decompressor rewritten, some bugs are fixed
* dos/exe: new option `--no-reloc': no relocation data is put into
the DOS header
* tmt/adam: added support for more stubs, detect already packed files
* tmt/adam: new option `--copy-overlay'
* wc/le: reduced memory requirement during uncompression
* wc/le: support files which do not contain their stack in the last object
* wc/le: fixed a bug which could cause a crash, improved relocation
handling
* wc/le: new option `--copy-overlay'
* win32/pe: `--compress-icons=2' is now the default
* win32/pe: even better TLS support
* win32/pe: versioninfo works on NT
* win32/pe: import by ordinal from kernel32.dll works
* win32/pe: other import improvements: importing a nonexistant DLL
results in a usual Windows message, importing a nonexistant 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/i386: minor decompressor stub updates, nicer progress bar
Changes in 0.71 (19 Apr 1999)
* dos/exe: added option `--no-overlay'
* linux/i386: 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/i386 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 writeable
* 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 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
* 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