PostGIS 2.5.6

Apr 21, 2022 release 2.5

The PostGIS Team is pleased to release PostGIS 2.5.6!

This release is a bug fix release, addressing issues found in the previous 2.5 releases.

4968 Update autogen.sh to handle autoconf 2.71 issues
4871 TopoGeometry::geometry cast returns NULL for empty TopoGeometry objects (Sandro Santilli)
4757 Handle line collapse due to snap-to-existing node (Sandro Santilli)
4769 Fix segfault in st_addband (Raúl Marín)
4863 Update bboxes after affine/scale operations (Paul Ramsey)
4326 Fix CircularPolygon area calculation (Paul Ramsey)
4971 Cunit fixes for newer CUnit (Raúl Marín, Regina Obe)
5069 search_path vulnerabilty during install/upgrade (Regina Obe)
5086 regress cleanly (clip by box, make valid) with GEOS 3.8+. For GEOS 3.8+ use native GEOS makevalid, buildarea, clipbybox (Regina Obe)
4457 Stop trying to createlang in regress plpgsql is always installed (Regina Obe)
4980 Support pkg-config for pcre detection (Regina Obe)

After installing the binaries or after running pg_upgrade:

do:

ALTER EXTENSION postgis UPDATE;
SELECT postgis_extensions_upgrade();

If you come across any issues, feel free to report via our ticket tracker or mailing list with details