Release candidate 4.6.7 - #2824

Release candidate for the 4.6.7 patch release, branched from v4.6.6. Opened so that CI runs before the release is tagged.

Contents

1. CI modernization

.github/ is byte-for-byte identical to master, with one deliberate exception. Refreshed action versions, the VS 2022 (vs17-*) jobs replaced by VS 2026 (vs18-*), and the new freebsd, gcc16 and ubuntu24-clang20 workflows.

The exception is gcc16.yml: its autodetection job was dropped because it compiles tests/reflection_autodetect_tests.cpp and sets SIMDJSON_STATIC_REFLECTION_MODE, neither of which exists on 4.6.x — static reflection is a master-only feature. The build job is kept, so gcc 16 still builds and runs the full suite.

Two other master-only options survive as inert -D flags (SIMDJSON_ENABLE_NAN_INF in macos.yml, SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS in vs18-ci.yml). CMake only warns about unused variables, so those jobs pass; they simply do not exercise features this branch does not have.

2. The bug fix (#2820)

Straight cherry-pick. The only conflict was cosmetic: master renamed the visit_number parameter value to num, so the hunk was reapplied against value. The fix itself is unchanged:

// The digit run must be terminated by a structural or whitespace character; otherwise the
// token is malformed (e.g. "123456789123456789123x").
if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; }

As on master, visit_root_number delegates to visit_number, so the root-level case is covered by the same check. The accompanying rejects_trailing_garbage regression test applied cleanly.

3. Version bump

include/simdjson/simdjson_version.h, CMakeLists.txt and Doxyfile moved to 4.6.7. Being a patch release, SIMDJSON_LIB_SOVERSION stays at 33. The amalgamation was regenerated with singleheader/amalgamate.py, refreshing simdjson.h, simdjson.cpp and singleheader.zip.

4. just_ascii

This test was already red at v4.6.6 — tests/fractured_json_tests.cpp, tests/dom/big_integer_tests.cpp and tests/builder/static_reflection_edge_cases_tests.cpp contain non-ASCII characters. Master fixed it in #2661, which never reached 4.6.x, so that commit is cherry-picked here to keep the RC's CI signal clean. It touches only tests, benchmark/partial_tweets/tweet.h and the CMake test definition — no include/ or src/ changes, so the shipped library and the amalgamation are unaffected.

Verification

Configured with -DSIMDJSON_DEVELOPER_MODE=ON on macOS/arm64: 109/109 tests pass. The regenerated single header compiles and runs the amalgamation demo against twitter.json and amazon_cellphones.ndjson.

Note on CI coverage

31 workflows run on this branch. The 13 cross-architecture ones — aarch64, ppc64, s390x, riscv64, the five rvv-*, freebsd, gcc16, fuzzers and ubuntu24-checkperf — are gated on branches: [master] and therefore do not run here. If that coverage is wanted before tagging, their push: branch filters need to name this branch temporarily.