Branch: development (switch to stable),

version 10.1.6 10.1.5 10.1.4 10.1.3 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 10.1.6 10.1.5 10.1.4 10.1.3 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 10.1.5 to 10.1.6

[Apr 22 2026]

• CI: Added utf8proc as dependency
• ENHANCED: mkchangelog stops changelog entries at the first blank line A blank line in a commit body now terminates that commit's changelog entry. Subject + first body paragraph become the entry; deeper detail stays visible in `git log` but is hidden from the generated changelog.

[Apr 21 2026]

• TEST: write_size/4 — max_width, max_height, Unicode combining, wide chars New write_size unit in tests/core/test_write.pl covers:
• ADDED: write_size(+Term, -Width, -Height, +Options) write_size/4 replaces the now-deprecated write_length/3. It returns both the maximum line Width and the Height (line count) the term would occupy when printed with write_term. Options max_width(+N) and max_height(+N) cap the computation — the underlying Swrite_lss aborts as soon as either threshold would be exceeded, bounding the runtime for huge terms.
• CLEANUP: pl_write_term refactored to PRED_IMPL; foreign_t → bool Convert pl_write_term2 / pl_write_term3 (and pl_print2) from the legacy foreign_t/pl_* calling convention to PRED_IMPL, and change pl_write_term3's signature to return bool. Also drop its entries from the foreigns[] table in pl-ext.c now that they are registered via PRED_DEF in pl-write.c.
• CLEANUP: bool return types for pl-text and pl-string APIs Convert int → bool for PL_unify_text_range, PL_promote_text, PL_mb_text, PL_canonicalise_text_ex, PL_concat_text, PL_save_text, PL_text_recode, and the return path of several PRED_IMPL functions in pl-string.c. Introduce get_text_t / cmp_t enums for the tri-valued get/compare cases so the type tells the reader what to expect instead of relying on int conventions.
• ENHANCED: Make format/2 position logic aware of Unicode column logic.
• ADDED: Unicode-aware Supdatepos() using wcwidth() Supdatepos() now counts double-width characters (CJK, emoji) as 2 columns and combining marks as 0, via wcwidth(). On systems lacking a native wcwidth() we fall back to the embedded mk_wcwidth.c from Markus Kuhn's public-domain implementation; src/CMakeLists.txt adds it to SRC_CORE when HAVE_WCWIDTH is false.

[Apr 20 2026]

• ADDED: code_type/2: code_type(Code, width(W)) Provides an interface to wcwidth().
• UNICODE: Fixed reading in DerivedCoreProperties.txt for Unicode-17.0. Required to update our tables to Unicode version 17.

[Apr 5 2026]

• FIXED: Missing declaation of listing/2 for option source(+Boolean)

[Apr 2 2026]

• FIXED: #1483 <base>' numbers can be misread. A possible read buffer reallocation can cause misreading the base and result in a syntax error or wrong value.
• FIXED: WASM: Convert class and property names with Unicode.

[Apr 1 2026]

• CLEANUP: Remove sigaction configuration

[Mar 30 2026]

• FIXED: GC error If a non-deterministic foreign predicate triggers a constraint wakeup.

[Mar 16 2026]

• FIXED: spy/1 to enable debug mode again

[Mar 14 2026]

• PORT: Fix cmake SDL3 import handling for non-standard configurations (PGO)

Package debian

[Apr 20 2026]

• ADDED: libutf8proc-dev as new dependency.

Package libedit

[Apr 20 2026]

• FIXED: swipl.exe console uses ReadConsoleInputW (Unicode) for input libedit4pl.c's Windows console read_char called ReadConsoleInput, which without UNICODE/_UNICODE defined expands to the ANSI variant ReadConsoleInputA. The A variant fills uChar.AsciiChar as a CP_437 / CP_ACP byte. We then read uChar.UnicodeChar from the same union, which gets at best a low-byte-truncated value (the A-call leaves the high byte of UnicodeChar undefined; in practice it's 0, so the byte value is read as a BMP code point of the same numeric value).
• FIXED: pl_getc reassembles UTF-16 surrogate pair on Windows editline.pl's bracketed_paste/3 handler collects pasted bytes with el_getc/2 (foreign pl_getc) and then calls string_codes/2 on the result. On Windows wchar_t is a 16-bit UTF-16 code unit, so a supplementary code point (emoji like 🤩, most non-BMP CJK) lives in the line buffer as a surrogate pair and el_wgetc returned each half as its own int. The resulting code list contained lone surrogates, and string_codes/2 aborted with

[Apr 19 2026]

• ENHANCED: libedit4pl.c — reassemble supplementary code points on read (Windows) On Windows wchar_t is a 16-bit UTF-16 code unit, but read_char read one UTF-8 code point at a time and stored it directly in a wchar_t:

[Apr 15 2026]

• ADDED: Use "bracketed paste mode" in the terminal. This avoids interpreting TAB as completion and speeds up long paste in Windows.

Package pldoc

[Apr 22 2026]

• ENHANCED: doc_latex translates common Unicode punctuation to LaTeX pdflatex under T1 encoding rejects non-ASCII bytes, so any PlDoc comment containing an em-dash, arrow, fancy quote or ellipsis produced hundreds of "non-ASCII character" warnings and the glyph often did not render.

Package protobufs

[Mar 10 2026]

• CLEANUP: reformat with pprint:print_term (changed whitespace)
• CLEANUP: fix some typos

Package ssl

[Apr 14 2026]

• PORT: Update for openssl 4.0

[Mar 15 2026]

• CLEANUP: Remove dead conditional code. Now only support OpenSSL 1.1.1 and LibreSSL.

Package utf8proc

[Apr 22 2026]

• BUILD: Probe optional libutf8proc features and gate on HAVE_UTF8PROC_* Older distro libutf8proc (Ubuntu LTS) ships a version that predates charwidth, ambiguous_width, indic_conjunct_break, the EXTENDED_PICTOGRAPHIC boundclass, and single-codepoint case mappings. The binding now probes those at configure time via check_c_source_compiles / check_symbol_exists and emits HAVE_UTF8PROC_* macros in config.h; unicode_property/2 branches and the associated foreign registrations are guarded by the matching #ifdef, so the binding compiles against any utf8proc version from 2.4 onwards.
• TEST: Full regression suite for library(unicode) Replace the stub test_utf8proc.pl with a plunit suite covering the features introduced in the previous commit:
• ENHANCED: Review unicode_property/2, add grapheme and casefold APIs Rewrite unicode4pl.c around the current utf8proc property struct and use SWI-Prolog's public PL_type_error / PL_domain_error / PL_resource_error helpers and bool return types.
• BUILD: Use external libutf8proc via pkg-config The package used to bundle utf8proc.c (plus its generated utf8proc_data.c), a local Makefile, a Ruby gem wrapper, and PostgreSQL binding code — all inherited from a pre-Julia upstream that no longer matches the maintained library. utf8proc is now maintained by the Julia project at https://github.com/JuliaStrings/utf8proc and ships in every major package manager, so there is no reason to vendor it here.

Package xpce

[Apr 21 2026]

• FIXED: rlc_resize, rlc_shift_lines_up, rlc_clear_from_cursor + tests Three related fixes to the xpce ring-buffer terminal and a new regression-test unit that exercises them:

[Apr 20 2026]

• FIXED: terminal paints each wide-char cluster at its column-grid x Pango's natural advance for an emoji (or other wide glyph) runs a pixel or two wider than the 2*cw the terminal grid allocates. Feeding a long same-flags run like "sskll😀😀😀😀😀😀😀" as a single s_print_utf8 call made each emoji nudge the subsequent glyphs rightward, so the rendered text drifted past the column-grid cursor that rlc_paint_text walks in integer cell units. With the caret walked to the end the text and the caret no longer meet, and a selected "see😀" left the trailing "aap" shifted left.
• FIXED: s_print_utf8 reads baseline from the new text, not the stale layout s_print_utf8 was calling pango_layout_get_baseline BEFORE pango_layout_set_text, so baseline reflected whatever text was in the cached PangoLayout from the previous call. Consecutive calls with different scripts (e.g. an emoji glyph followed by plain ASCII) baseline-aligned each draw against the previous call's text, so the second draw could land a few pixels above or below the intended baseline.
• FIXED: raise META_OFFSET above Unicode range META_OFFSET (used to tag Meta-prefixed key events in the same integer space as character code points) was 1<<16 = 65536. Any non-BMP code point (emoji like 🤩 U+1F612, most supplementary-plane characters) is >= 65536 and collided with the Meta flag.

[Apr 19 2026]

• TEST: terminal_non_bmp — exercise supplementary-plane code points Add five tests covering the non-BMP path that matters most on Windows, where wchar_t is 16-bit UTF-16 and a single code point (U+10000 and above) occupies two buffer slots as a surrogate pair. Linux stores the same code point in one wchar_t; these tests pin both platforms to the same observable behaviour:
• TEST: extend random-test model to multi-row layout Teach test_terminal_random's pure-Prolog model to lay clusters out across rows (model_layout/8) so it can verify content that legitimately wraps. Rows are grouped by the row they occupy and each row is compared to xpce's <-row. The per-session content cap is lifted from one row to 900 visual columns so random sessions routinely exercise the libedit+xpce wrap path.

[Apr 18 2026]

• TEST: regression for re_refresh wide-at-cursor using visual column Locks in the libedit fix: long NFD content + emoji at cursor must not bump the computed cursor row based on code-point count.
• FIXED: rlc_insert must not clamp tl->size to b->width rlc_insert extended the line's cell size only up to b->width when opening a gap for the inserted character. For a line whose content is NFD-heavy (combining marks occupy cell slots but zero visual columns) the cell count can legitimately exceed b->width while the visible content still fits, and clamping trimmed the trailing cells — most visibly the final cluster's combining mark, which disappeared from the display after a mid-line insert.
• FIXED: ANSI column positioners must not clamp caret_x to width-1 rlc_set_caret (CUP / HVP) and rlc_set_caret_x (CHA / HPA) clamped the resulting caret_x to b->width-1 after converting the requested visual column via rlc_vcol_to_cell. For plain narrow content that's a no-op, but for rows containing combining marks or wide characters the cell index at visual column K legitimately exceeds K (a base + combiner occupies two cells for one column). The clamp silently snapped the caret back to the middle of the row, so libedit's re_refresh_cursor —which uses CHA to position after cross-wrap moves — landed at the physical midpoint of an NFD-filled line instead of its right edge.
• FIXED: count wide-char clusters as 2 visual columns in DCH rlc_delete_chars decremented its visual-column budget by the base cell's per-cell width (1), which is wrong for a wide char: the cluster spans base + placeholder = 2 visual columns. So a DCH with count=2 only removed one wide cluster plus a character from the next cluster, instead of a single wide cluster.
• FIXED: preserve cell content when rlc_put lands a combiner mid-line rlc_put's combining-mark branch used to write the combiner into the cell at caret_x and advance. For a re-render that inserts an NFD cluster with libedit's T_IC + overwrite, the overwrite's combining mark clobbered the base that T_IC had just shifted into place, dropping the following character from the visible row.
• TEST: add test_terminal_random/2,3 and first regression it surfaced Introduces a random driver that types and edits through libedit and after each command verifies the cursor and row text against a pure- Prolog model of where they should be. Single-row v1 (buffer capped to fit on one row). On the first divergence the driver prints the seed, the full session command history, and the expected/actual state, then throws.
• TEST: Added terminal test framework.
• ADDED: epilog/1 option object(-Ref) Get the xpce object reference of the new terminal.

[Apr 15 2026]

• ENHANCED: Unicode-aware terminal cell model Teach the xpce terminal's line buffer to store Unicode content by code point, with per-cell display width, and to move the caret by grapheme clusters or by visual columns as the context requires. Summary of the model:

[Apr 17 2026]

• ADDED: terminal_image<-cursor_position and terminal_image<-row This allows for writing terminal handling tests.

[Apr 16 2026]

• ADDED: text_item->placeholder Modernizing the UI

[Apr 15 2026]

• ADDED: library(pce_backcomp): Provide better backward compatibility
• MODIDIED: Renamed ->fill_pattern to ->fill Only filling with colours is currently supported. Even if we re-introduce filling with images, the name fill_pattern is not accurate.

[Apr 10 2026]

• MODIFIED: Use .SVG images for most of the icons of the development tools This patch replaces most 16x16 .PNG image files with .SVG files, most of which are scaled to the context, e.g., the line height. Furthermore

[Apr 9 2026]

• ADDED: Support loading image objects from SVG data

[Apr 14 2026]

• FIXED: Windows display<-selection to return canonical newlines. This patch also fixes a memory leak: the selection string as obtained from SDL3 was not freed. The leak applies to all platforms.
• FIXED: figure->shadow rendering.

[Apr 13 2026]

• FIXED: image<-clip and image<-scale to same size Preserve transparency of the source.

[Apr 9 2026]

• ADDED: Support loading images from SVG files. This uses the SDL-Image library support for nano-svg. This is a subset of SVG.
• MODIFIED: Deleted image<-monochrome. This is a bit outdated. Use <-grayscale instead.
• SDL: Implemented image<-rotate.
• ENHANCED: Allow resizing tool button images.
• SDL: Implemented image<-scale.
• ENHANCED: Several PceDraw issues.
• ENHANCED: Default arrow size.
• FIXED: ellipse->shadow drawing.

[Apr 8 2026]

• ENHANCED: Slider look handling. Now implements gtk and motif Deleted old open_look and win (black-and-white) looks.
• FIXED: Pen+-fill handling for box and arc/ellipse
• FIXED: Properly draw 3D elevated triangles
• ENHANCED: sizing 3D triangles to indicate popup menus based on the font metrics.

[Apr 7 2026]

• FIXED: draw 3D triangle correctly.
• FIXED: Dynamic switching menu_bar->look.

[Apr 4 2026]

• FIXED: Use 64-bit millisecond timer Now uses SDL_GetTick() for portability and consistently type as int64_t. This avoids 49 days overflow on Windows.
• SDL: Implemented @pce<-user.
• MODIFIED: Deleted console methods on @pce This deletes @pce->`console_label`, @pce->expose_console, @pce->iconify_console and @pce->show_console``.
• FIXED: Edit menu from profiler.

[Apr 3 2026]

• ADDED: PceEmacs find_references (M-?) to reuse the window unless pinned.
• SDL: Implemented frame<-image.
• SDL: Implemented window->flash.
• MODIFIED: Deleted window->grab_keyboard Modern GUI frameworks no longer allow global grabbing of the keyboard.
• SDL: Added enable/disable screen saver.
• SDL: Implemented display->bell Was a stub. Now generates a sentesized beep.
• SDL: Re-implement reading images from arbitrary streams.
• SDL: Re-added support for images in saves objects.

[Apr 2 2026]

• SDL: Support image->save Currently only for PNG format and only to a file.
• SDL: Implemented image<-pixel. This patch also introduces @rgba, a hash table that maps RGBA quadruples into existing colour objects.
• SDL: Implemented window->pointer (was a dummy) Does not work on all platforms. Still succeeds silently.
• FIXED: frame->background for open frames.
• FIXED: Help menu of Profiler to open correct page.

[Apr 1 2026]

• CLEANUP: Remove RCS version control on classes.
• MODIFIED: Deleted display->open SDL has no such notion. It could be in headless mode, but then it still has a display that can be considered "open".
• MODIFIED: Deleted unimplemented methods on class frame: These methods have been removed as there is no cross-platform support for them:
• MODIFIED: Deleted frame<-thread All windows are managed by the SDL main thread.
• DELETED: frame->grab_pointer. This is not supported by security-aware window systems.
• MODIFIED: Deleted frame<->border.
• MODIFIED: Deleted frame->hide. This commit removes several low-level bindings that are not supported by SDL and typically considered outdated.
• CLEANUP: Remove left overs of built-in XBM images
• CLEANUP: Remove X11 resource reference database.
• CLEANUP: Remove SDL_GRAPHICS macro (now unconditionally)
• CLEANUP: Remove WIN32_GRAPHICS configuration
• CLEANUP: Remove configuration for sigaction and union wait.

[Mar 31 2026]

• FIXED: Use a safe way to send messages from a singal handler. This is used to inform xpce when the status of a child process has changed.
• CLEANUP: Remove CMake define USE_SIGINFO
• CLEANUP: Remove various X11 traces

[Mar 15 2026]

• PORT: Support SDL < 3.2.12, which does not provide accumulative wheel events.

[Mar 12 2026]

• FIXED: Windows: frame<-{open,save}_file work around for SDL3.4.0 bug.

[Mar 11 2026]

• PORT: Windows: get rid of remaining XBM images. Fixes XopenImage(@ms_left_arrow_image/image) message and shows correct left arrow for pullright menus.