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Expose a way to specify BoundaryNodeRule for IsSimple OP via C-API

EnhancementNew feature or feature improvement.New feature or feature improvement.

Status: Open.

#1543 In libgeos/geos;

· strk opened on Sep 30, 2026

Z is not interpolated when PolygonZ is split by curve

Bug

Status: Open.

#1541 In libgeos/geos;

· gacarrillor opened on Sep 29, 2026

RelateOp fails to report interior-interior intersection

Bug

Status: Open.

#1540 In libgeos/geos;

· strk opened on Sep 29, 2026

Polygon is not split by curve

Bug

Curves

Status: Open.

#1539 In libgeos/geos;

· gacarrillor opened on Sep 29, 2026

geosop fails silently on input file not found

Bug

Status: Open.

#1538 In libgeos/geos;

· strk opened on Sep 28, 2026

Variant analysis: 1 unfixed sibling safety gap in geos

Status: Open.

#1537 In libgeos/geos;

· x4evexnol opened on Sep 28, 2026

Fixed-grid snap rounding at 14 significant digits self-crosses valid triangles

Status: Open.

#1535 In libgeos/geos;

· d-hage opened on Sep 23, 2026

Throw IllegalArgumentException in GEOSProject_r

Good First IssueNew developers consider for experience.New developers consider for experience.

Status: Open.

#1534 In libgeos/geos;

· sgillies opened on Sep 17, 2026

geos_developer_cxx_flags gates CRT deprecation suppression on MSVC, not on the actual CRT in use

Status: Open.

#1528 In libgeos/geos;

· nyoma-diamond opened on Sep 11, 2026

CoverageCleaner merges adjacent polygons when snapping distance is zero

Status: Open.

#1525 In libgeos/geos;

· d-hage opened on Sep 10, 2026

Overlay silently wrong when an operand has a zero-width collinear interior ring

Status: Open.

#1523 In libgeos/geos;

· d-hage opened on Sep 10, 2026

Update the nlohmann/json header to version 3.12

Status: Open.

#1521 In libgeos/geos;

· karen-nix opened on Sep 9, 2026