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Diffstat (limited to 'NEWS')
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diff --git a/NEWS b/NEWS index de348cc9..d6c1d5f3 100644 --- a/NEWS +++ b/NEWS @@ -1,3 +1,66 @@ +KLEE 2.2, 7 December 2020 +========================= + +Incorporating changes from 4 March 2020 to 7 December 2020. +Maintainers during this time span: @ccadar and @MartinNowack +Documentation at http://klee.github.io/releases/docs/v2.2 + +== Major features == +- Added support for C++ exceptions (@corrodedHash, @futile, @jbuening) +- Correctly copy variadic arguments with byval attribute (@ccadar) +- Modified the random path searcher to work on a subset of states (@kren1) +- Added state IDs to improve determinism (@251) +- Overhauled the (Travis CI) build scripts (@MartinNowack) +- Restructured header files (@ccadar) + +== LLVM support == +- Current recommended version is LLVM 9 +- Added support for LLVM 11 (@lzaoral) +- We have decided to extend support for LLVM 3.8 to 5, but KLEE 2.2 will be the last version with support for LLVM <6 + +== Options, scripts and KLEE intrinsics added, changed or removed == +- Changed --debug-print-instructions to also print state IDs (@251) +- Added -rng-initial-seed to set the seed for KLEE's random number generator (@251) +- Added klee_is_replay intrinsic which returns whether the code is being executed symbolically or in replay mode (@alastairreid) +- Added --compress-process-tree to remove intermediate nodes in the process tree when possible (@sebastianpoeplau) +- Added klee-zesti, a ZESTI-like wrapper (@kren1) +- Added --table-format=readable-csv/csv to klee-stats (@251) + +== Other changes == +- Fixed GlobalAlias initialization (@jbuening) +- Enforced fork/branch limits in branch() and fix double termination (@251) +- Enhanced POSIX runtime in the case where a symbolic file is given as an absolute path, i.e. /current/work/dir/A (@kren1) +- Named jobs in Travis CI for better visualization of results (@ccadar) +- Fixes and improvements in the statistics code including klee-stats (@251) +- Added a simple model for GET/SET_LK (@kren1) +- Fixed bug in the handling of vectorized code (@Warfley) +- Fixed bug in the handling of STP array names (@MartinNowack) +- Fixed bug in Z3Solver::getConstraintLog (@daniel-grumberg) +- Added support for reading strings from the middle of objects in readStringAtAddress (@mchalupa) +- Disabled asm lifting for memory fences with return values (@MartinNowack) +- Fixed bug when the search requires MD2U (@adrianherrera) +- Added support for fshr/fshl intrinsics (@alastairreid) +- Refactored the constraint manager (@MartinNowack) +- Changed DiscretePDF to use IDs instead of pointers to remove nondeterminism (@251) +- Added a more robust handling of unknown intrinsics: if an unknown intrinsic is encountered on a path, that path is terminated but the others can proceed (@alastairreid) +- Fixed PTree::remove to clean the tree properly (@sebastianpoeplau) +- Added support for multiple symbolic files to gen-bout (@kren1) +- Added a PR template, with a checklist documenting the most frequent issues we have encountered (@ccadar) +- Fixed the behaviour of klee-stats for broken or empty DBs (@251) +- Added support for klee_open_merge and klee_close_merge in replay (@ccadar) +- Fixed the handling of global variables while validating direct call targets (@MartinNowack) +- Fixed the handling of the fabs intrinsic (@dlaprell) +- Added support for the fneg instruction (@jbuening) +- Removed incompatibility between merging and the random path search (@251) +- Fixed the behaviour of klee-libc to call the functions in __cxa_atexit in reverse order (@tomsik68) +- Fixed the behaviour of bcmp in klee-libc (@alastairreid) +- Added support for multi-version bitcode libraries (@MartinNowack) +- Added support for several fortified functions, -D_FORTIFY_SOURCE (@ccadar) +- Modernize ref<> and isa<> nullptr checks (@jbuening) +- Switched CI from Travis CI to GitHub Actions (@MartinNowack, with thanks to @jordr) +- Smaller refactorings, fixes and improvements, test cases, maintenance, comments, web version, website, etc. (@251, @adrianherrera, @alastairreid, @andrewvaughanj, @andronat, @arrowd, @ccadar, @dependabot, @i-ky, @jbuening, @jiseongg, @jordr, @kren1, @lahiri-phdworks, @MartinNowack, @yxliang01) + + KLEE 2.1, 3 March 2020 ======================= Incorporating changes from 20 March 2019 to 3 March 2020. |