Changes in version 0.9.26 (2026-04-21)                 

  - Unicode support

                 Changes in version 0.9.25 (2026-02-24)                 

  - run swipl's unit tests during R CMD check
  - maintainance release, compatible with swipl >= 10.1.2

                 Changes in version 0.9.24 (2026-01-14)                 

  - add mutex to prevent simultaneous calls to R

                 Changes in version 0.9.23 (2025-05-19)                 

  - as.rolog evaluates symbols in (a), not in (a + 1)

                       Changes in version 0.9.22                        

  - Prolog pack now running on MSYS2 (requires R in PATH and R_HOME)

                 Changes in version 0.9.21 (2025-03-11)                 

  - Migrate back to cpp2
  - fix https://github.com/mgondan/rolog/issues/10
  - Avoids the use of non-API calls BODY, FORMALS.

                 Changes in version 0.9.20 (2025-02-15)                 

  - Bidirectional support: Access SWI-Prolog from R and vice-versa.
  - Changed license to BSD-2

                       Changes in version 0.9.19                        

  - Maintainance release: fixes problems reported by UBSAN

                 Changes in version 0.9.18 (2024-07-09)                 

  - bugfix: PL-get-atom-chars
  - workaround for Rcpp::Language

                 Changes in version 0.9.17 (2024-05-01)                 

  - Maintainance release: improve behavior with parallel make

                 Changes in version 0.9.16 (2024-03-28)                 

  - Maintainance release: improve detection of swi-prolog at runtime

                 Changes in version 0.9.15 (2024-03-18)                 

  - Migrate to C functions (prepare wrapper library for rswipl)

                 Changes in version 0.9.14 (2023-06-29)                 

  - Maintainance release: more informative error message if SWI-Prolog
    is missing

                 Changes in version 0.9.13 (2023-05-08)                 

  - Maintainance release: compatible with static libswipl.a from R
    package rswipl

                 Changes in version 0.9.12 (2023-04-20)                 

  - represent vectors as double hash, dollar, !, %
  - matrices triple hash, dollar, !, %
  - compatible with R-4.3

                 Changes in version 0.9.11 (2023-01-27)                 

  - Maintainance release: fix problems with exception handling

                 Changes in version 0.9.10 (2023-01-12)                 

  - Support for R environments (r_eval)
  - Backward compatible with swipl 8.4.2

                 Changes in version 0.9.9 (2023-01-06)                  

  - Support for formulae (convert to call)
  - LinkingTo: rswipl

                 Changes in version 0.9.8 (2022-12-23)                  

  - Support for matrices
  - Support for exceptions

                        Changes in version 0.9.7                        

  - Represent R functions as ':-'/2 in Prolog

                 Changes in version 0.9.6 (2022-11-12)                  

  - Separate SWI-Prolog runtime in R package rswipl
  - Connect to installed SWI-Prolog (Windows registry, PATH,
    SWI_HOME_DIR)

                        Changes in version 0.9.5                        

  - skipped. Will use updated C++ interface at a later stage.

                 Changes in version 0.9.4 (2022-05-14)                  

  - Added a vignette with a manuscript for JSS
  - Patch on swipl to suppress a deprecation warning under macOS (vfork)

                 Changes in version 0.9.3 (2022-05-04)                  

  - Added a NEWS.md file to track changes to the package.
  - Temporarily remove diagrams from the package vignette because
    DiagrammeR is currently not available in r-devel.
  - Slightly faster build on Windows