The stable branches of GEOS have all had patch releases today!

https://trac.osgeo.org/geos/ <https://trac.osgeo.org/geos/>


Changes in 3.5.2
2019-10-04

- Bug fixes / improvements
  - Fix crash in GEOSUnaryUnion with empty LineString (#928, Sergey Fedoseev)
  - Polygon build failure in Overlay difference (#789, Paul Ramsey)
  - Performance improvement in overlay (#986, Paul Ramsey)
  - Fix infinite loop in GEOSClipByRect (#865, Dan Baston and Raúl Marín)


Changes in 3.6.4
2019-10-04

- Bug fixes / improvements
  - Fix crash in GEOSUnaryUnion with empty LineString
    (#928, Sergey Fedoseev)
  - Fix incorrect error return values in GEOSLength and
    GEOSisValidDetail (#941, Dan Baston)
  - Envelope constructor use strtod (#875)
  - Polygon build failure in Overlay difference (#789 Paul Ramsey)
  - Invalid union result from valid polygon inputs (#838)
  - Static library does not contain C API (#878)
  - Prevent crash when querying empty STRtree (#730)
  - Overlay performance improvement (#986, Paul Ramsey)


Changes in 3.7.3
2019-10-04

- Bug fixes / improvements
  - Union performance regression (#867, Paul Ramsey)
  - Overlay performance improvement (#986, Paul Ramsey)



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