Branch: development (switch to stable),

version 10.1.2 10.1.1 10.1.0 9.3.36 9.3.35 9.3.34 9.3.33 9.3.32 9.3.31 9.3.30 9.3.29 9.3.28 9.3.27 9.3.26 9.3.25 9.3.24 9.3.23 9.3.22 9.3.21 9.3.20 9.3.19 9.3.18 9.3.17 9.3.16 9.3.15 9.3.14 9.3.13 9.3.12 9.3.11 9.3.10 9.3.9 9.3.8 9.3.7 9.3.6 9.3.5 9.3.4 9.3.3 9.3.2 9.3.1 9.3.0 9.1.22 9.1.21 9.1.20 9.1.19 9.1.18 9.1.17 9.1.16 9.1.15 9.1.14 9.1.13 9.1.12 9.1.11 9.1.10 9.1.9 9.1.8 9.1.7 9.1.6 9.1.5 9.1.4 9.1.3 9.1.2 9.1.1 9.1.0 8.5.20 8.5.19 8.5.18 8.5.17 8.5.16 8.5.15 8.5.14 8.5.13 8.5.12 8.5.11 8.5.10 8.5.9 8.5.8 8.5.7 8.5.6 8.5.5 8.5.4 8.5.3 8.5.2 8.5.1 8.5.0 8.3.29 8.3.28 8.3.27 8.3.26 8.3.25 8.3.24 8.3.23 8.3.22 8.3.21 8.3.20 8.3.19 8.3.18 8.3.17 8.3.16 8.3.15 8.3.14 8.3.13 8.3.12 8.3.11 8.3.10 8.3.9 8.3.8 8.3.7 8.3.6 8.3.5 8.3.4 8.3.3 8.3.2 8.3.1 8.3.0 8.1.32 8.1.31 8.1.30 8.1.29 8.1.28 8.1.27 8.1.26 8.1.25 8.1.24 8.1.23 8.1.22 8.1.21 8.1.20 8.1.19 8.1.18 8.1.17 8.1.16 8.1.15 8.1.14 8.1.13 8.1.12 8.1.11 8.1.10 8.1.9 8.1.8 8.1.7 8.1.6 8.1.5 8.1.4 8.1.3 8.1.2 8.1.1 8.1.0 7.7.25 7.7.24 7.7.23 7.7.22 7.7.21 7.7.20 7.7.19 7.7.18 7.7.17 7.7.16 7.7.15 7.7.14 7.7.13 7.7.12 7.7.11 7.7.10 7.7.9 7.7.8 7.7.7 7.7.6 7.7.5 7.7.4 7.7.3 7.7.2 7.7.1 7.7.0 7.5.15 7.5.14 7.5.13 7.5.12 7.5.11 7.5.10 7.5.9 7.5.8 7.5.7 7.5.6 7.5.5 7.5.4 7.5.3 7.5.2 7.5.1 7.5.0 7.3.35 7.3.34 7.3.33 7.3.32 7.3.31 7.3.30 7.3.29 7.3.28 7.3.27 7.3.26 7.3.25 7.3.24 7.3.23 7.3.22 7.3.21 7.3.20 7.3.19 7.3.18 7.3.17 7.3.16 7.3.15 7.3.14 7.3.13 7.3.12 7.3.11 7.3.10 7.3.9 7.3.8 7.3.7 7.3.6 7.3.5 7.3.4 7.3.3 7.3.2 7.3.1 7.3.0 7.1.37 7.1.36 7.1.35 7.1.34 7.1.33 7.1.32 7.1.31 7.1.30 7.1.29 7.1.28 7.1.27 7.1.26 7.1.25 7.1.24 7.1.23 7.1.22 7.1.21 7.1.20 7.1.19 7.1.18 7.1.17 7.1.16 7.1.15 7.1.14 7.1.13 7.1.12 7.1.11 7.1.10 7.1.9 7.1.8 7.1.7 7.1.6 7.1.5 7.1.4 7.1.3 7.1.2 7.1.1 7.1.0 6.5.3 6.5.2 6.5.1 6.5.0 6.3.19 6.3.18 6.3.17 6.3.16 6.3.15 6.3.14 6.3.13 6.3.12 6.3.11 6.3.10 6.3.9 6.3.8 6.3.7 6.3.6 6.3.5 6.3.4 6.3.3 6.3.2 6.3.1 6.3.0 6.1.13 6.1.12 6.1.11 6.1.10 6.1.9 6.1.8 6.1.7 6.1.6 6.1.5 6.1.4 6.1.3 6.1.2 6.1.1 6.1.0 5.11.37 5.11.36 5.11.35 5.11.34 5.11.33 5.11.32 5.11.31 5.11.30 5.11.29 5.11.28 5.11.27 5.11.26 5.11.25 5.11.24 5.11.23 5.11.22 5.11.21 5.11.20 5.11.19 5.11.18 5.11.17 5.11.16 5.11.15 5.11.14 5.11.13 5.11.12 5.11.11 5.11.10 5.11.9 5.11.8 5.11.7 5.11.6 5.11.5 5.11.4 5.11.3 5.11.2 5.11.1 5.11.0 5.10.0 5.9.11 5.9.10 5.9.9 5.9.8 5.8.3 5.9.7 5.9.6 5.9.5 5.9.4 5.8.2 5.9.3 5.8.1 5.9.2 5.9.1 5.9.0 5.8.0 5.8.0-rc1 5.7.15 5.7.14 5.7.13 5.7.12 5.7.11 5.7.10 5.7.9 5.7.8 5.7.7 5.7.6 5.7.5 5.6.64 5.7.4 5.7.3 5.6.63 5.7.2 5.6.62 5.6.61 5.7.1 5.6.60 5.7.0 5.6.59 5.6.58 5.6.57 5.6.56 5.6.55 5.6.54 5.6.53 5.6.52 5.6.51 5.6.50 5.6.49 5.6.48 5.6.47 5.6.46 5.6.45 5.6.44 to version 10.1.2 10.1.1 10.1.0 9.3.36 9.3.35 9.3.34 9.3.33 9.3.32 9.3.31 9.3.30 9.3.29 9.3.28 9.3.27 9.3.26 9.3.25 9.3.24 9.3.23 9.3.22 9.3.21 9.3.20 9.3.19 9.3.18 9.3.17 9.3.16 9.3.15 9.3.14 9.3.13 9.3.12 9.3.11 9.3.10 9.3.9 9.3.8 9.3.7 9.3.6 9.3.5 9.3.4 9.3.3 9.3.2 9.3.1 9.3.0 9.1.22 9.1.21 9.1.20 9.1.19 9.1.18 9.1.17 9.1.16 9.1.15 9.1.14 9.1.13 9.1.12 9.1.11 9.1.10 9.1.9 9.1.8 9.1.7 9.1.6 9.1.5 9.1.4 9.1.3 9.1.2 9.1.1 9.1.0 8.5.20 8.5.19 8.5.18 8.5.17 8.5.16 8.5.15 8.5.14 8.5.13 8.5.12 8.5.11 8.5.10 8.5.9 8.5.8 8.5.7 8.5.6 8.5.5 8.5.4 8.5.3 8.5.2 8.5.1 8.5.0 8.3.29 8.3.28 8.3.27 8.3.26 8.3.25 8.3.24 8.3.23 8.3.22 8.3.21 8.3.20 8.3.19 8.3.18 8.3.17 8.3.16 8.3.15 8.3.14 8.3.13 8.3.12 8.3.11 8.3.10 8.3.9 8.3.8 8.3.7 8.3.6 8.3.5 8.3.4 8.3.3 8.3.2 8.3.1 8.3.0 8.1.32 8.1.31 8.1.30 8.1.29 8.1.28 8.1.27 8.1.26 8.1.25 8.1.24 8.1.23 8.1.22 8.1.21 8.1.20 8.1.19 8.1.18 8.1.17 8.1.16 8.1.15 8.1.14 8.1.13 8.1.12 8.1.11 8.1.10 8.1.9 8.1.8 8.1.7 8.1.6 8.1.5 8.1.4 8.1.3 8.1.2 8.1.1 8.1.0 7.7.25 7.7.24 7.7.23 7.7.22 7.7.21 7.7.20 7.7.19 7.7.18 7.7.17 7.7.16 7.7.15 7.7.14 7.7.13 7.7.12 7.7.11 7.7.10 7.7.9 7.7.8 7.7.7 7.7.6 7.7.5 7.7.4 7.7.3 7.7.2 7.7.1 7.7.0 7.5.15 7.5.14 7.5.13 7.5.12 7.5.11 7.5.10 7.5.9 7.5.8 7.5.7 7.5.6 7.5.5 7.5.4 7.5.3 7.5.2 7.5.1 7.5.0 7.3.35 7.3.34 7.3.33 7.3.32 7.3.31 7.3.30 7.3.29 7.3.28 7.3.27 7.3.26 7.3.25 7.3.24 7.3.23 7.3.22 7.3.21 7.3.20 7.3.19 7.3.18 7.3.17 7.3.16 7.3.15 7.3.14 7.3.13 7.3.12 7.3.11 7.3.10 7.3.9 7.3.8 7.3.7 7.3.6 7.3.5 7.3.4 7.3.3 7.3.2 7.3.1 7.3.0 7.1.37 7.1.36 7.1.35 7.1.34 7.1.33 7.1.32 7.1.31 7.1.30 7.1.29 7.1.28 7.1.27 7.1.26 7.1.25 7.1.24 7.1.23 7.1.22 7.1.21 7.1.20 7.1.19 7.1.18 7.1.17 7.1.16 7.1.15 7.1.14 7.1.13 7.1.12 7.1.11 7.1.10 7.1.9 7.1.8 7.1.7 7.1.6 7.1.5 7.1.4 7.1.3 7.1.2 7.1.1 7.1.0 6.5.3 6.5.2 6.5.1 6.5.0 6.3.19 6.3.18 6.3.17 6.3.16 6.3.15 6.3.14 6.3.13 6.3.12 6.3.11 6.3.10 6.3.9 6.3.8 6.3.7 6.3.6 6.3.5 6.3.4 6.3.3 6.3.2 6.3.1 6.3.0 6.1.13 6.1.12 6.1.11 6.1.10 6.1.9 6.1.8 6.1.7 6.1.6 6.1.5 6.1.4 6.1.3 6.1.2 6.1.1 6.1.0 5.11.37 5.11.36 5.11.35 5.11.34 5.11.33 5.11.32 5.11.31 5.11.30 5.11.29 5.11.28 5.11.27 5.11.26 5.11.25 5.11.24 5.11.23 5.11.22 5.11.21 5.11.20 5.11.19 5.11.18 5.11.17 5.11.16 5.11.15 5.11.14 5.11.13 5.11.12 5.11.11 5.11.10 5.11.9 5.11.8 5.11.7 5.11.6 5.11.5 5.11.4 5.11.3 5.11.2 5.11.1 5.11.0 5.10.0 5.9.11 5.9.10 5.9.9 5.9.8 5.8.3 5.9.7 5.9.6 5.9.5 5.9.4 5.8.2 5.9.3 5.8.1 5.9.2 5.9.1 5.9.0 5.8.0 5.8.0-rc1 5.7.15 5.7.14 5.7.13 5.7.12 5.7.11 5.7.10 5.7.9 5.7.8 5.7.7 5.7.6 5.7.5 5.6.64 5.7.4 5.7.3 5.6.63 5.7.2 5.6.62 5.6.61 5.7.1 5.6.60 5.7.0 5.6.59 5.6.58 5.6.57 5.6.56 5.6.55 5.6.54 5.6.53 5.6.52 5.6.51 5.6.50 5.6.49 5.6.48 5.6.47 5.6.46 5.6.45 5.6.44

SWI-Prolog Changelog from version 10.1.1 to 10.1.2

[Jan 24 2026]

• FIXED: write_term/2: handle partial(true) for backquoted text.
• FIXED: write_term/2 using option partial(true) to separate quoted objects. Found by Joachim Schimpf
• DOC: write_term/2: handling of back_quotes and module options

[Jan 23 2026]

• FIXED: write_term/3 and friends to get default back_quotes from flags.

[Jan 22 2026]

• PORT: Better support for Homebrew dependencies (MacOS) This ensures SDL3 comes from Homebrew if both provided by Macports and Homebrew and configure maps gcc=14 to Homebrew gcc.
• PORT: Make configure work for build.gcc=15 on MacOS. Compiler is called gcc-mp-15 and it does not support -g3.

[Jan 21 2026]

• ENHANCED: edit/1: merging module and file. If a spec resolves to a file and module with the same name, edit the module.

[Jan 19 2026]

• FIXED: Allow building only the core system (no packages at all). Stop installing libraries that depend on packages and do not warn if library(editline) is not present.
• FIXED: #1436 check_installation/0: check editline, also on Windows.
• FIXED: CpuCount() typing

[Jan 18 2026]

• FIXED: Type issues on 32 bit platforms

[Jan 15 2026]

• CLEANUP: Types Restore API affecting type changes of -Wconversion cleanup, introduce new integer aliases and enums to replace int with more appropriate types. Propagate these through the system (incomplete).

[Jan 10 2026]

• CLEANUP: Make likely/unlikely silent.

[Jan 5 2026]

• FIXED: #1431 format/2: handling ~d on gmp evaluation returning a small int.

Package archive

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings

Package bdb

[Jan 22 2026]

• CLEANUP: Avoid -Wconversion warnings You might wish to check if the assertions are needed/solve a problem.

Package clib

[Jan 18 2026]

• ENHANCE: use size_t to avoid -Wconversion errors I also added a few casts I considered safe. Dubious casts are highlighted. [Nov 20 2025]
• DOC: minor fix in comment

Package cpp

[Jan 23 2026]

• ENHANCED: make it easier to generate the standard form of exceptions

[Jan 22 2026]

• CLEANUP: add more default qid=0

[Jan 21 2026]

• CLEANUP: Plx_exception() has default qid=0

[Jan 20 2026]

• CLEANUP: change PL_exception() to Plx_exception()

[Jan 12 2026]

• ASAN: add comment

[Jan 9 2026]

• ASAN: avoid uninitialized buffer in fread This silences an ASAN error mentioned in https://github.com/SWI-Prolog/packages-cpp/issues/105.
  1. I don't really see the point, but maybe clang's ASAN does not like

to write into "reserved" but not initialized memory areas.

1. Alternatively, and that may be the reason for the ASAN complaint:

buf in the outer std::string(buf, size) function is not "officially" initialized.

Package http

[Jan 25 2026]

• ENHANCED: http_post_data/3 to raise an exception if the data is not recognised.

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings

Package jpl

[Jan 24 2026]

• CLEANUP: avoid -Wconversion, improve UTF16 support On systems with wchar_t is 4 bytes (pretty much anything but Windows), convert Prolog Unicode code points > 0xffff to/from UTF-16.

Package json

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warning

Package sgml

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings

Package ssl

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings

Package table

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings

Package tipc

[Jan 23 2026]

• CLEANUP: Modernise exception handling, use bool and update PlDoc
• CLEANUP: avoid -Wconversion warnings

Package utf8proc

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings

Package xpce

[Jan 26 2026]

• CLEANUP: Avoid suspicious sizeof() handling warning by clangd

[Jan 22 2026]

• FIXED: Use `font<-average_char_width` for width computations This used to be `font<-ex`, but this is the height of the x character. This notably fixes the default width of PceEmacs windows to hold 80 characters rather than a few less (depending on the font).
• FIXED: PceEmacs Prolog mode: find-references to avoid duplicates.

[Jan 21 2026]

• FIXED: class text_buffer: LSP position reporting for wide-character buffers.
• FIXED: Epilog: underline could continue in scrollbar.

[Jan 19 2026]

• FIXED: text->underline. Underline was relative to top instead of base.

[Jan 13 2026]

• ENHANCED: When opening one of xpce's manual tools, do not show @manual. This additional window is often needed and especially on systems that do not allow for window placement, this is annoying.

[Jan 7 2026]

• ENHANCED: Make most errors that result from buggy program print a backtrace

[Jan 5 2026]

• ADDED: PceEmacs: (empty) markdown mode. Allows for user extension, so we can play with markdown LSP servers.

Package yaml

[Jan 22 2026]

• CLEANUP: avoid -Wconversion warnings