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Change Logs

* Sun Nov 05 2017
- Update to version 2.52b:
  * Upgraded QEMU patches from 2.3.0 to 2.10.0. Required troubleshooting
    several weird issues.
  * Added setsid to afl-showmap. See the notes for 2.51b.
  * Added target mode (deferred, persistent, qemu, etc) to fuzzer_stats.
  * afl-tmin should now save a partially minimized file when Ctrl-C
    is pressed.
  * Added an option for afl-analyze to dump offsets in hex.
  * Added support for parameters in
* Sun Sep 03 2017
- afl 2.51b:
  * Make afl-tmin call setsid to prevent glibc traceback junk from
    showing up on the terminal
- includes changes form 2.50b:
  * Fix a timing corner case
  * Address a libtokencap / pthreads incompatibility issue
  * In-place resume now preserves .synced
* Sat Jul 29 2017
- include docs/README
* Wed Jul 26 2017
- Version 2.49b
  - Added AFL_TMIN_EXACT to allow path constraint for crash minimization.
  - Added dates for releases (retroactively for all of 2017).
- Version 2.48b
  - Added AFL_ALLOW_TMP to permit some scripts to run in /tmp.
  - Fixed cwd handling in afl-analyze (similar to the quirk in afl-tmin).
  - Made it possible to point -o and -f to the same file in afl-tmin.
- Version 2.47b
  - Fixed cwd handling in afl-tmin. Spotted by Jakub Wilk.
- Version 2.46b
  - libdislocator now supports AFL_LD_NO_CALLOC_OVER for folks who do not
    want to abort on calloc() overflows.
  - Made a minor fix to libtokencap. Reported by Daniel Stender.
  - Added a small JSON dictionary, inspired on a dictionary done by Jakub Wilk.
* Fri Jul 07 2017
- update to 2.45b:
  - Added strstr, strcasestr support to libtokencap. Contributed by
    Daniel Hodson.
  - Fixed a resumption offset glitch spotted by Jakub Wilk.
  - There are definitely no bugs in afl-showmap -c now.
* Mon Jul 03 2017
- update to 2.44b:
  * Add visual indicator of ASAN / MSAN mode when compiling
  * Add support for afl-showmap coredumps (-c)
  * Add LD_BIND_NOW=1 for afl-showmap by default
  * Added AFL_NO_ARITH to aid in the fuzzing of text-based formats
  * Renamed the R() macro to avoid a problem with llvm_mode in the
    latest versions of LLVM
* Wed Apr 12 2017
- update to 2.41b:
  - Addressed a major user complaint related to timeout detection. Timing out
    inputs are now binned as "hangs" only if they exceed a far more generous
    time limit than the one used to reject slow paths.
- update to 2.40b:
  - Fixed a minor oversight in the insertion strategy for dictionary words.
    Spotted by Andrzej Jackowski.
  - Made a small improvement to the havoc block insertion strategy.
  - Adjusted color rules for "is it done yet?" indicators.
* Wed Mar 08 2017
- Changed %doc line, to clear buildfailure in openSUSE:Factory
  Due to unpackaged files
* Fri Feb 10 2017
- update to 2.39b:
  - Improved error reporting in afl-cmin. Suggested by floyd.
  - Made a minor tweak to trace-pc-guard support. Suggested by kcc.
  - Added a mention of afl-monitor.
* Mon Jan 30 2017
- update to  2.38b:
  * Added -mllvm -sanitizer-coverage-block-threshold=0 to
    trace-pc-guard mode
  * Fixed a cosmetic bad free() bug when aborting -S sessions
  * Made a small change to afl-whatsup to sort fuzzers by name.
  * Fixed a minor issue with malloc(0) in libdislocator
  * Changed the clobber pattern in libdislocator to a slightly more
    reliable one
  * Added a note about THP performance
  * Added a somewhat unofficial support for running afl-tmin with a
    baseline "mask" that causes it to minimize only for edges that
    are unique to the input file, but not to the "boring" baseline.
  * "Fixed" a getPassName() problem with never versions of clang.
* Wed Oct 19 2016
- Update to version 2.35b:
  * Fixed a minor cmdline reporting glitch, spotted by Leo Barnes.
  * Fixed a silly bug in libdislocator. Spotted by Johannes Schultz.
- Changes for version 2.34b:
  * Added a note about afl-tmin to technical_details.txt.
  * Added support for AFL_NO_UI, as suggested by Leo Barnes.
- Changes for version 2.33b:
  * Added code to strip -Wl,-z,defs and -Wl,--no-undefined for
    fl-clang-fast, since they interfere with -shared. Spotted and
    iagnosed by Toby Hutton.
  * Added some fuzzing tips for Android.
* Thu Aug 25 2016
- Version 2.32b:
  - Added a check for AFL_HARDEN combined with AFL_USE_*SAN. Suggested by Hanno Boeck.
  - Made several other cosmetic adjustments to cycle timing in the wake of the big tweak made in 2.31b.
- Version 2.31b:
  - Changed havoc cycle counts for a marked performance boost, especially
    with -S / -d. See the discussion of FidgetyAFL in:!topic/afl-users/fOPeb62FZUg
    While this does not implement the approach proposed by the authors of
    the CCS paper, the solution is a result of digging into that research;
    more improvements may follow as I do more experiments and get more
    definitive data.
- Version 2.30b:
  - Made minor improvements to persistent mode to avoid the remote
    possibility of "no instrumentation detected" issues with very low
    instrumentation densities.
  - Fixed a minor glitch with a leftover process in persistent mode.
    Reported by Jakub Wilk and Daniel Stender.
  - Made persistent mode bitmaps a bit more consistent and adjusted the way
    this is shown in the UI, especially in persistent mode.
- Version 2.29b:
  - Made a minor #include fix to llvm_mode. Suggested by Jonathan Metzman.
  - Made cosmetic updates to the docs.
- Version 2.28b:
  - Added "life pro tips" to docs/.
  - Moved testcases/_extras/ to dictionaries/ for visibility.
  - Made minor improvements to install scripts.
  - Added an important safety tip.
- Version 2.27b:
  - Added libtokencap, a simple feature to intercept strcmp / memcmp and
    generate dictionary entries that can help extend coverage.
  - Moved libdislocator to its own dir, added README.
  - The demo in experimental/instrumented_cmp is no more.
- Version 2.26b:
  - Made a fix for to compile on MacOS X.
  - Added support for DYLD_INSERT_LIBRARIES.
- Version 2.25b:
  - Made some cosmetic updates to, renamed one env
- Version 2.24b:
  - Added, an experimental, abusive allocator. Try
    it out with AFL_LD_PRELOAD=/path/to/ when running
- Version 2.23b:
  - Improved the stability metric for persistent mode binaries. Problem
    spotted by Kurt Roeckx.
  - Made a related improvement that may bring the metric to 100% for those
- Version 2.22b:
  - Mentioned the potential conflicts between MSAN / ASAN and FORTIFY_SOURCE.
    There is no automated check for this, since some distros may implicitly
    set FORTIFY_SOURCE outside of the compiler's argv[].
  - Populated the support for AFL_LD_PRELOAD to all companion tools.
  - Made a change to the handling of ./afl-clang-fast -v. Spotted by
    Jan Kneschke.
* Sat Jul 23 2016
- afl 2.21b:
  * Minor UI fixes
- includes changes from 2.20b:
  * Revamp handling of variable paths
  * Stablility improvements
  * Include current input bitmap density in UI
  * Add experimental support for parallelizing -M.
- includes changes from 2.19b:
  * Ensure auto CPU binding happens at non-overlapping times
- includes changes from 2.18b
  * Performance improvements
* Tue Jun 28 2016
- afl 2.17b:
  * Remove error-prone and manual -Z option
  * automatically bind to the first free core
* Wed Jun 15 2016
- afl 2.14b:
    defined when compiling with afl-gcc and friends
  - Refreshed some of the non-x86 docs.
* Tue May 31 2016
- afl 2.13b:
  * Fixed a spurious build test error with trace-pc and
  * Fixed a cosmetic issue with afl-whatsup
- includes changes from 2.12b
  * Fixed a minor issue in afl-tmin that can make alphabet
    minimization less efficient during passes > 1
* Mon May 02 2016
- afl 2.11b:
  - Fixed a minor typo in instrumented_cmp
  - Added a missing size check for deterministic insertion steps.
  - Made an improvement to afl-gotcpu when -Z not used.
  - Fixed a typo in in experimental/
* Sat Apr 16 2016
- afl 2.10b:
  * Fix a minor core counting glitch
* Mon Mar 28 2016
- Update to 2.09b
  * Made several documentation updates.
  * Added some visual indicators to promote and simplify the use
    of -Z.
- Changes for 2.08b
  * Added explicit support for -m32 and -m64 for llvm_mode.
    Inspired by a request from Christian Holler.
  * Added a new benchmarking option, as requested by Kostya
- Changes for 2.07b
  * Added CPU affinity option (-Z) on Linux. With some caution,
    this can offer a significant (10%+) performance bump and
    reduce jitter. Proposed by Austin Seipp.
  * Updated afl-gotcpu to use CPU affinity where supported.
  * Fixed confusing CPU_TARGET error messages with QEMU build.
    Spotted by Daniel Komaromy and others.
- Changes for 2.06b
  * Worked around LLVM persistent mode hiccups with -shared code.
    Contributed by Christian Holler.
  * Added __AFL_COMPILER as a convenient way to detect that
    something is built under afl-gcc / afl-clang / afl-clang-fast
    and enable custom optimizations in your code. Suggested by
    Pedro Corte-Real.
  * Upstreamed several minor changes developed by Franjo Ivancic to
    allow AFL to be built as a library. This is fairly use-specific
    and may have relatively little appeal to general audiences.
* Sun Feb 28 2016
- afl 2.05b:
  * Put __sanitizer_cov_module_init & co behind #ifdef to avoid
    problems with ASAN.