v5.6.2

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Ubuntu users can install packages from our Ubuntu PPA.
• Clingo's Python module is available on PyPI.
• Packages for clingo are available for various Linux distributions including Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• fix AST comparison (#394)
• fix handling of n-ary comparisons in AST (#396)

v5.6.1

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Ubuntu users can install packages from our Ubuntu PPA.
• Clingo's Python module is available on PyPI.
• Packages for clingo are available for various Linux distributions including Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• fix symbolic atom iterator (#389)
• build wheels using cibuildwheel (#391, #392)
  (this adds additional architectures)

v5.6.0

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Ubuntu users can install packages from our Ubuntu PPA.
• Clingo's Python module is available on PyPI.
• Packages for clingo are available for various Linux distributions including Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• add support for parsing files in ASPIF format (#387)
  (breaks C API)
• add theory related functions to backend (#381)
• add support for comparisons with more than one relation (#368)
• extend safety by computing intervals from comparisons (#375)
• add and ground base part by default in Python API (#378)
• remove experimental CSP extensions (#367)
• require at least MSVC 15.0 to build on Windows
• large code refactoring (#376)
• replace internal hash set implementation by external one (#386)
• update to clasp version 3.3.9

v5.5.2

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Ubuntu users can install packages from our Ubuntu PPA.
• Clingo's Python module is available on PyPI.
• Packages for clingo are available for various Linux distributions including Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• fix parse_files in C++ API
• fix adding clauses during enumeration (#359)
• fix incremental projection with backend (#362)
• update clasp

v5.5.1

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Ubuntu users can install packages from our Ubuntu PPA.
• Clingo's Python module is available on PyPI.
• Packages for clingo are available for various Linux distributions including Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• extend theory class to get version information
• improve performance of Model.symbol (#296)
• tidy up clingo.hh header regarding C++17 deprecations (#344)
• fix error handling while solving in Python API (#334)
• fix various other bugs

v5.5.0

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Ubuntu users can install packages from our Ubuntu PPA.
• Clingo's Python module is available on PyPI.
• Packages for clingo are available for various Linux distributions including Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• allow for using not as a theory operator (#193)
• improve parsing of disjunctions (#171)
• rename max_size to size in APIs and remove previous size method
  (breaks backward compatibility but makes things consistent)
• refine cmake configuration variables (#283)
  (package maintainers might have to pay attention here)
• extend clingo API (#236, #231, #228, #227, #187, #171, #174, #183)
• add type annotations and add stub files for type checkers (#212)
• reimplement Python API using CFFI (#253)
  (breaks backward compatibility regarding the AST and some details)
• add remove_watch and freeze_literal to propagate_init (#285)
• add support for Lua 5.4
• add options to select specific Lua/Python versions
• add single-shot solving option (#269)
  (see installation instructions)
• rename clingo.Tuple to clingo.Tuple_
  (to avoid name clashes with typing.Tuple)
• fix propagator initialization (#166)
• fix cleanup function and handling of theory (#169)
• fix shifting of disjunctions (in clasp) (#173)
• fix handling of pools in externals (#179)
• fix logger in Python API (#175)
• fix memory bugs regarding strings (#196)
• fix undo function (#191)
• fix adding literals in propagate init (#192)
• fix handling of undefined arithmetics (#218)
• fix incremental grounding (#248)
• fix/improve handling of classical negation (#268)
• update to clasp version 3.3.6 fixing various issues

v5.4.1

This minor release fixes a small build issues with Python 3.8 and later.

Existing clingo 5.4.0 binaries can be reused and packages that already apply this patch do not have to be updated.

v5.4.0

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Packages for clingo are available in the Linux distributions Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• add extension to implement custom heuristics
• add const modifiers to C API
• add flags to external and const statements to match API functions
• fix python memleaks
• make compatible with msvc 15
• C ABI changes
  • extended propagators
• C++ API changes
  • unify usage of ProgramBuilder and Backend
• python API changes
  • TruthValue.{_True,_False} becomes TruthValue.{True_,False_}
  • HeuristicType.{True,False} becomes TruthValue.{True_,False_}
  • async and yield becomes async_ and yield_
• improve python API documentation
• use cmakes find_python module
• update to clasp version 3.3.5

clingo version 5.3.0

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Packages for clingo are available in the Linux distributions Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• change C API to use numeric instead of symbolic literals
  • affects assumptions and assigning/releasing externals (breaks backward compatibility)
  • added overloads to C++, python and lua API to support both numeric and symbolic version (preserves backward compatibility for most code)
• the python, C and C++ APIs now allow for customizing clingo by implementing a custom main function but reusing the rest of the application including the standard output
• add API function to detect conflicting programs
• add message logger to python and lua interface
• add support for primes in the beginning of identifiers and variable names
• add per solver registration of watches during propagator initialization
• add a directive to selectivel suppress undefined atom warnings
• add support for user defined statistics
• add _to_c functions for python API to be able to call C functions from python
• only create ground representations for requested program parts when grounding (#71)
• improve program observer (#19)
• support for binary, octal, and hexadecimal numbers (#65)
• the backend has to be opened/closed now
• release python's GIL while grounding (#82)
• TruthValue.{True,False} becomes TruthValue.{_True,_False} in python API
• improve API and it's documentation

clingo version 5.2.3

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. Packages are available in the Potassco channel. First install either Anaconda or Miniconda and then run: conda install -c potassco clingo.
• Packages for clingo are available in the Linux distributions Debian, Ubuntu, and Arch Linux. (For historic reasons, the clingo package is split into gringo and clasp on Ubuntu/Debian.)
• For Mac OS X, clingo packages are available in homebrew and macports.

Changes

• update to clasp version 3.3.4
• really fix --pre option
• fix link to potassco guide (#74)
• fix location printing (#78)
• fix linking problems (#79)
• fix modulo zero (#100)
• fix web builds (#103)
• fix addding clauses after a model has been found (#104)
• fix python program observer bindings (#105)
• expose exponentiation operator in APIs
• improve python docstrings (#101, #102)
• add option to build python and lua modules against an existing libclingo