S2 Geometry Files

Interface Changes

• Bump required versions
• abseil-cpp: LTS 20250814
• clang: 14
• CMake: 3.22
• OpenSSL: 1.1
• Require C++17

Fixes/enhancements

• New function: S2DensityTree::Dilate
• S2CellId: Make lookup tables constexpr, removing runtime init
• New S2Cell::IsDistanceLess and related predicates
• Do not use #pragma STDC FP_CONTRACT off for gcc to try to prevent warnings. gcc has its own pragma (which was always used)
• Switch some ABSL_LOG(ERROR)s to DFATAL
• New functions
• MutableS2ShapeIndex::Remove()
• S2EdgeVectorShape::set_dimension()
• S2Polygon::MakeFull()
• Modernize ExactFloat interface
• Replace exactfloat::is_nan() with isnan(const ExactFloat&)
• Replace ToDouble() with explicit operator double()
• Add fpclassify(const ExactFloat&)
• Fix S2ShapeNestingQuery when two chains share a vertex
• Fix S2Polygon bug when intersecting polyline
• Add S2ClosestEdgeQuery::VisitClosestShapes
• Delete deprecated S2Error::text(); use message() instead
• Ensure _fp_contract_off.h is included everywhere
• Add thread annotations to SpinLock
• Convert many const vector<>&s to Span<>s
• Add noexcept to move operators
• Make some comparisons stable for sorting
• Guard against overflow in Decode functions
• Remove S2_DEFINE_* flags macros and use ABSL_FLAG directly

What's Changed

• Fixed where cc_configure_extension comes from. by @vtsao-openai in https://github.com/google/s2geometry/pull/410
• S1Angle::SinCos: Disable sincos for glibc by @jmr in https://github.com/google/s2geometry/pull/414
• workflows: Disable macos and enable ubuntu-22 by @jmr in https://github.com/google/s2geometry/pull/412
• Fix some comments in s2builderutil_snap_functions by @rsned in https://github.com/google/s2geometry/pull/418
• Update s2builder.h comments by @rsned in https://github.com/google/s2geometry/pull/419
• CMakeLists: Make installation optional by @idevtm in https://github.com/google/s2geometry/pull/421
• CMakeLists: Work around clang sized dealloc bug by @jmr in https://github.com/google/s2geometry/pull/422
• dependabot.yml: Add daily github-actions update by @jmr in https://github.com/google/s2geometry/pull/424
• MODULE.bazel: Update by @rsned in https://github.com/google/s2geometry/pull/427
• test.yml: build with --parallel by @jmr in https://github.com/google/s2geometry/pull/429
• test.yml: Run with ctest --parallel by @jmr in https://github.com/google/s2geometry/pull/430
• GetCommonAncestorLevel: work around bit_width return type bug by @idevtm in https://github.com/google/s2geometry/pull/431
• Try to fix CMakeLists.txt by @MBkkt in https://github.com/google/s2geometry/pull/433
• Fix warnings by @MBkkt in https://github.com/google/s2geometry/pull/436
• Remove incorrect thread-safety annotation by @MBkkt in https://github.com/google/s2geometry/pull/437
• Update to 2025-07-09 google3 version by @jmr in https://github.com/google/s2geometry/pull/440
• README.md: Bump abseil-cpp and C++ version by @jmr in https://github.com/google/s2geometry/pull/444
• exactfloat: Replace port.h macros with absl::endian by @jmr in https://github.com/google/s2geometry/pull/445
• Publish smcallis's username by @jmr in https://github.com/google/s2geometry/pull/443
• Add design docs for S2ValidationQuery by @smcallis in https://github.com/google/s2geometry/pull/442
• Add tag_regex for dynamic version by @b4rdos in https://github.com/google/s2geometry/pull/451
• Update to 2025-09-24 google3 version by @jmr in https://github.com/google/s2geometry/pull/454
• Fix bazel build by @jmr in https://github.com/google/s2geometry/pull/455
• bazel.yml: Add Bazel workflow by @jmr in https://github.com/google/s2geometry/pull/459
• Update to 2025-10-24 google3 version by @jmr in https://github.com/google/s2geometry/pull/465
• Update to 2025-11-06 google3 version by @jmr in https://github.com/google/s2geometry/pull/472

New Contributors

• @vtsao-openai made their first contribution in https://github.com/google/s2geometry/pull/410
• @rsned made their first contribution in https://github.com/google/s2geometry/pull/418
• @idevtm made their first contribution in https://github.com/google/s2geometry/pull/421
• @smcallis made their first contribution in https://github.com/google/s2geometry/pull/442
• @dependabot[bot] made their first contribution in https://github.com/google/s2geometry/pull/447
• @b4rdos made their first contribution in https://github.com/google/s2geometry/pull/451

Full Changelog: https://github.com/google/s2geometry/compare/v0.12.0...v0.13.0