v5.8.0

Packages

• The easiest way to obtain Python enabled clingo packages is using Anaconda. First install either Anaconda or Miniconda or Miniforge and then run:
  • conda create -n potassco -c conda-forge clingo for the latest stable package from the conda-forge channel
  • conda create -n potassco -c potassco clingo for the latest stable package from the Potassco channel
  • conda create -n potassco -c potassco/label/dev clingo for the latest development package from the Potassco channel
  • We recommend to use conda-forge together with Miniforge as it provides a wider range of packages targetting more platforms. Choose the Potassco channel if you are interested in the latest development packages.
  • If you have and ARM-based Apple system and want to use conda-forge, run pip install cffi --force in the potassco environment to workaround a bug in libffi (affects the clingo.ast module in Python).
• 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 API to read/write aspif programs (#530)
• extend API to remove project and minimize statements (#527)
• fix cffi issues with python 3.12 (#486)
• fix comment enum in Python API (#507)
• bump cmake requirement to 3.10 (#541)
• update clasp fixing various issues (#528)

v5.7.1

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 comparison of theory elements (#485)
• fix manifest (#484)
• update cibw to also produce Python 3.12 wheels

v5.7.0

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 AST node for comments (#417)
• add function to change undo mode (#409)
• add function to access priorities to API (#406)
• add Model::is_consequence to API (#423)
• add option to preserve facts (#457)
• improve hash table performance (#441)
• extend add_theory_atom method of backend (#461)
  (breaks backward compatibility of the API)
• add contribution guidelines (#465)
• fix add_theory_atom_with_guard in Python API
• fix AST bugs (#403)
• fix parsing of hexadecimal numbers (#421)
• fix assignment aggregates (#436)
• fix build scripts for Python 3.12 (#452)
• fix overflows in IESolver (#462)
• make sure clingo_control_ground is re-entrant (#418)
• update clasp and dependencies

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.