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NEWS
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2014-07-07 Version 1.3.1 released
Bugfix release.
#484: Require CMAKE 2.8
#471, #472, #480: Various clang compatibility fixes
#481, #482: Fix shared lib build and versioning
#476: Fix invalid map query in NearestNeighborTsp
#478: Bugfix in debug checking and lower bound handling
in min cost flow algorithms
#479, #465: Bugfix in default LP/MIP backend settings
#476: Bugfix in tsp_test
#487: Add missing include header and std:: namespace spec.
#474: Fix division by zero error in NetworkSimplex
2013-08-10 Version 1.3 released
This is major feature release
* New data structures
#69 : Bipartite graph concepts and implementations
* New algorithms
#177: Port Edmonds-Karp algorithm
#380, #405: Heuristic algorithm for the max clique problem
#386: Heuristic algorithms for symmetric TSP
----: Nagamochi-Ibaraki algorithm [5087694945e4]
#397, #56: Max. cardinality search
* Other new features
#223: Thread safe graph and graph map implementations
#442: Different TimeStamp print formats
#457: File export functionality to LpBase
#362: Bidirectional iterator support for radixSort()
* Implementation improvements
----: Network Simplex
#391: Better update process, pivot rule and arc mixing
#435: Improved Altering List pivot rule
#417: Various fine tunings in CostScaling
#438: Optional iteration limit in HowardMmc
#436: Ensure strongly polynomial running time for CycleCanceling
while keeping the same performance
----: Make the CBC interface be compatible with latest CBC releases
[ee581a0ecfbf]
* CMAKE has become the default build environment (#434)
----: Autotool support has been dropped
----: Improved LP/MIP configuration
#465: Enable/disable options for LP/MIP backends
#446: Better CPLEX discovery
#460: Add cmake config to find SoPlex
----: Allow CPACK configuration on all platforms
#390: Add 'Maintainer' CMAKE build type
#388: Add 'check' target.
#401: Add contrib dir
#389: Better version string setting in CMAKE
#433: Support shared library build
#416: Support testing with valgrind
* Doc improvements
#395: SOURCE_BROWSER Doxygen switch is configurable from CMAKE
update-external-tags CMAKE target
#455: Optionally use MathJax for rendering the math formulae
#402, #437, #459, #456, #463: Various doc improvements
* Bugfixes (compared to release 1.2):
#432: Add missing doc/template.h and doc/references.bib to release
tarball
----: Intel C++ compatibility fixes
#441: Fix buggy reinitialization in _solver_bits::VarIndex::clear()
#444: Bugfix in path copy constructors and assignment operators
#447: Bugfix in AllArcLookUp<>
#448: Bugfix in adaptor_test.cc
#449: Fix clang compilation warnings and errors
#440: Fix a bug + remove redundant typedefs in dimacs-solver
#453: Avoid GCC 4.7 compiler warnings
#445: Fix missing initialization in CplexEnv::CplexEnv()
#428: Add missing lemon/lemon.pc.cmake to the release tarball
#393: Create and install lemon.pc
#429: Fix VS warnings
#430: Fix LpBase::Constr two-side limit bug
#392: Bug fix in Dfs::start(s,t)
#414: Fix wrong initialization in Preflow
#418: Better Win CodeBlock/MinGW support
#419: Build environment improvements
- Build of mip_test and lp_test precede the running of the tests
- Also search for coin libs under ${COIN_ROOT_DIR}/lib/coin
- Do not look for COIN_VOL libraries
#382: Allow lgf file without Arc maps
#417: Bug fix in CostScaling
#366: Fix Pred[Matrix]MapPath::empty()
#371: Bug fix in (di)graphCopy()
The target graph is cleared before adding nodes and arcs/edges.
#364: Add missing UndirectedTags
#368: Fix the usage of std::numeric_limits<>::min() in Network Simplex
#372: Fix a critical bug in preflow
#461: Bugfix in assert.h
#470: Fix compilation issues related to various gcc versions
#446: Fix #define indicating CPLEX availability
#294: Add explicit namespace to
ignore_unused_variable_warning() usages
#420: Bugfix in IterableValueMap
#439: Bugfix in biNodeConnected()
2010-03-19 Version 1.2 released
This is major feature release
* New algorithms
* Bellman-Ford algorithm (#51)
* Minimum mean cycle algorithms (#179)
* Karp, Hartman-Orlin and Howard algorithms
* New minimum cost flow algorithms (#180)
* Cost Scaling algorithms
* Capacity Scaling algorithm
* Cycle-Canceling algorithms
* Planarity related algorithms (#62)
* Planarity checking algorithm
* Planar embedding algorithm
* Schnyder's planar drawing algorithm
* Coloring planar graphs with five or six colors
* Fractional matching algorithms (#314)
* New data structures
* StaticDigraph structure (#68)
* Several new priority queue structures (#50, #301)
* Fibonacci, Radix, Bucket, Pairing, Binomial
D-ary and fourary heaps (#301)
* Iterable map structures (#73)
* Other new tools and functionality
* Map utility functions (#320)
* Reserve functions are added to ListGraph and SmartGraph (#311)
* A resize() function is added to HypercubeGraph (#311)
* A count() function is added to CrossRefMap (#302)
* Support for multiple targets in Suurballe using fullInit() (#181)
* Traits class and named parameters for Suurballe (#323)
* Separate reset() and resetParams() functions in NetworkSimplex
to handle graph changes (#327)
* tolerance() functions are added to HaoOrlin (#306)
* Implementation improvements
* Improvements in weighted matching algorithms (#314)
* Jumpstart initialization
* ArcIt iteration is based on out-arc lists instead of in-arc lists
in ListDigraph (#311)
* Faster add row operation in CbcMip (#203)
* Better implementation for split() in ListDigraph (#311)
* ArgParser can also throw exception instead of exit(1) (#332)
* Miscellaneous
* A simple interactive bootstrap script
* Doc improvements (#62,#180,#299,#302,#303,#304,#307,#311,#331,#315,
#316,#319)
* BibTeX references in the doc (#184)
* Optionally use valgrind when running tests
* Also check ReferenceMapTag in concept checks (#312)
* dimacs-solver uses long long type by default.
* Several bugfixes (compared to release 1.1):
#295: Suppress MSVC warnings using pragmas
----: Various CMAKE related improvements
* Remove duplications from doc/CMakeLists.txt
* Rename documentation install folder from 'docs' to 'html'
* Add tools/CMakeLists.txt to the tarball
* Generate and install LEMONConfig.cmake
* Change the label of the html project in Visual Studio
* Fix the check for the 'long long' type
* Put the version string into config.h
* Minor CMake improvements
* Set the version to 'hg-tip' if everything fails
#311: Add missing 'explicit' keywords
#302: Fix the implementation and doc of CrossRefMap
#308: Remove duplicate list_graph.h entry from source list
#307: Bugfix in Preflow and Circulation
#305: Bugfix and extension in the rename script
#312: Also check ReferenceMapTag in concept checks
#250: Bugfix in pathSource() and pathTarget()
#321: Use pathCopy(from,to) instead of copyPath(to,from)
#322: Distribure LEMONConfig.cmake.in
#330: Bug fix in map_extender.h
#336: Fix the date field comment of graphToEps() output
#323: Bug fix in Suurballe
#335: Fix clear() function in ExtendFindEnum
#337: Use void* as the LPX object pointer
#317: Fix (and improve) error message in mip_test.cc
Remove unnecessary OsiCbc dependency
#356: Allow multiple executions of weighted matching algorithms (#356)
2009-05-13 Version 1.1 released
This is the second stable release of the 1.x series. It
features a better coverage of the tools available in the 0.x
series, a thoroughly reworked LP/MIP interface plus various
improvements in the existing tools.
* Much improved M$ Windows support
* Various improvements in the CMAKE build system
* Compilation warnings are fixed/suppressed
* Support IBM xlC compiler
* New algorithms
* Connectivity related algorithms (#61)
* Euler walks (#65)
* Preflow push-relabel max. flow algorithm (#176)
* Circulation algorithm (push-relabel based) (#175)
* Suurballe algorithm (#47)
* Gomory-Hu algorithm (#66)
* Hao-Orlin algorithm (#58)
* Edmond's maximum cardinality and weighted matching algorithms
in general graphs (#48,#265)
* Minimum cost arborescence/branching (#60)
* Network Simplex min. cost flow algorithm (#234)
* New data structures
* Full graph structure (#57)
* Grid graph structure (#57)
* Hypercube graph structure (#57)
* Graph adaptors (#67)
* ArcSet and EdgeSet classes (#67)
* Elevator class (#174)
* Other new tools
* LP/MIP interface (#44)
* Support for GLPK, CPLEX, Soplex, COIN-OR CLP and CBC
* Reader for the Nauty file format (#55)
* DIMACS readers (#167)
* Radix sort algorithms (#72)
* RangeIdMap and CrossRefMap (#160)
* New command line tools
* DIMACS to LGF converter (#182)
* lgf-gen - a graph generator (#45)
* DIMACS solver utility (#226)
* Other code improvements
* Lognormal distribution added to Random (#102)
* Better (i.e. O(1) time) item counting in SmartGraph (#3)
* The standard maps of graphs are guaranteed to be
reference maps (#190)
* Miscellaneous
* Various doc improvements
* Improved 0.x -> 1.x converter script
* Several bugfixes (compared to release 1.0):
#170: Bugfix SmartDigraph::split()
#171: Bugfix in SmartGraph::restoreSnapshot()
#172: Extended test cases for graphs and digraphs
#173: Bugfix in Random
* operator()s always return a double now
* the faulty real<Num>(Num) and real<Num>(Num,Num)
have been removed
#187: Remove DijkstraWidestPathOperationTraits
#61: Bugfix in DfsVisit
#193: Bugfix in GraphReader::skipSection()
#195: Bugfix in ConEdgeIt()
#197: Bugfix in heap unionfind
* This bug affects Edmond's general matching algorithms
#207: Fix 'make install' without 'make html' using CMAKE
#208: Suppress or fix VS2008 compilation warnings
----: Update the LEMON icon
----: Enable the component-based installer
(in installers made by CPACK)
----: Set the proper version for CMAKE in the tarballs
(made by autotools)
----: Minor clarification in the LICENSE file
----: Add missing unistd.h include to time_measure.h
#204: Compilation bug fixed in graph_to_eps.h with VS2005
#214,#215: windows.h should never be included by LEMON headers
#230: Build systems check the availability of 'long long' type
#229: Default implementation of Tolerance<> is used for integer types
#211,#212: Various fixes for compiling on AIX
----: Improvements in CMAKE config
- docs is installed in share/doc/
- detects newer versions of Ghostscript
#239: Fix missing 'inline' specifier in time_measure.h
#274,#280: Install lemon/config.h
#275: Prefix macro names with LEMON_ in lemon/config.h
----: Small script for making the release tarballs added
----: Minor improvement in unify-sources.sh (a76f55d7d397)
2009-03-27 LEMON joins to the COIN-OR initiative
COIN-OR (Computational Infrastructure for Operations Research,
http://www.coin-or.org) project is an initiative to spur the
development of open-source software for the operations research
community.
2008-10-13 Version 1.0 released
This is the first stable release of LEMON. Compared to the 0.x
release series, it features a considerably smaller but more
matured set of tools. The API has also completely revised and
changed in several places.
* The major name changes compared to the 0.x series (see the
Migration Guide in the doc for more details)
* Graph -> Digraph, UGraph -> Graph
* Edge -> Arc, UEdge -> Edge
* source(UEdge)/target(UEdge) -> u(Edge)/v(Edge)
* Other improvements
* Better documentation
* Reviewed and cleaned up codebase
* CMake based build system (along with the autotools based one)
* Contents of the library (ported from 0.x)
* Algorithms
* breadth-first search (bfs.h)
* depth-first search (dfs.h)
* Dijkstra's algorithm (dijkstra.h)
* Kruskal's algorithm (kruskal.h)
* Data structures
* graph data structures (list_graph.h, smart_graph.h)
* path data structures (path.h)
* binary heap data structure (bin_heap.h)
* union-find data structures (unionfind.h)
* miscellaneous property maps (maps.h)
* two dimensional vector and bounding box (dim2.h)
* Concepts
* graph structure concepts (concepts/digraph.h, concepts/graph.h,
concepts/graph_components.h)
* concepts for other structures (concepts/heap.h, concepts/maps.h,
concepts/path.h)
* Tools
* Mersenne twister random number generator (random.h)
* tools for measuring cpu and wall clock time (time_measure.h)
* tools for counting steps and events (counter.h)
* tool for parsing command line arguments (arg_parser.h)
* tool for visualizing graphs (graph_to_eps.h)
* tools for reading and writing data in LEMON Graph Format
(lgf_reader.h, lgf_writer.h)
* tools to handle the anomalies of calculations with
floating point numbers (tolerance.h)
* tools to manage RGB colors (color.h)
* Infrastructure
* extended assertion handling (assert.h)
* exception classes and error handling (error.h)
* concept checking (concept_check.h)
* commonly used mathematical constants (math.h)