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0.92.0

@pnorman pnorman tagged this 16 Dec 09:43
Major changes since 0.90.0 are

- PostgreSQL 9.1 + PostGIS 2.0 or later are now required, which has
  allowed performance improvements and cleanups
- EPSG 3857 is now default. You can get the old behavior by manually
  specifying 900913
- Invlid geometries are re-checked for validity after buffering, instead
  of assuming GEOS returns a valid geom

Other changes are
- A new option to change the max bbox size at which polygons will expire
  all the tiles in them, not just the boundary
- Behavior fixes for C transforms and tables with no columns
- More numeric datatypes are allowed for table columns in C tagtransforms
- Lua is now required by default
- Code fixes, particularly replacement of C memory management
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