[PROJ] PROJ 8.1.0RC1 & PROJ-data 1.7RC1

[Kristian Evers]

All,

I have prepared release candidates for PROJ 8.1.0 and PROJ-data 1.7. Download them here:

http://download.osgeo.org/proj/proj-8.1.0RC1.tar.gz
http://download.osgeo.org/proj/proj-8.1.0RC1.zip

http://download.osgeo.org/proj/proj-data-1.7RC1.tar.gz
http://download.osgeo.org/proj/proj-data-1.7RC1.zip

See the PROJ release notes below. The PROJ-data release includes two new grids:
fr_ign_RAF18b.tif and au_ga_AGQG_20201120.tif. In addition the predecessor for the
latter grid, au_ga_AGQG_20191107.tif, has been removed.

Please test the two release candidates and report back your findings either to the
mailing list or in a GitHub issue.

/Kristian

——————

8.1.0 Release Notes
-------------------

 Updates
 -------

 + Database

   o Update to EPSG v10.027 (#2751)

   o Decrease DB size by using WITHOUT ROWID tables (#2730) (#2647)

   o Add a ANALYZE step during proj.db creation allowing for
     faster lookups (#2729)

   o Added a PROJ.VERSION metadata entry (#2646)

   o Added NGO48 (EPSG:4273) to ETRS89 (EPSG:4258) triangulation-based
     transformation (#2554)

   o Additions to the norwegian NKG2020 transformation (#2548)

   o ESRI projection database updated to version 12.8 (#2717)

 + API additions

   o Added proj_get_geoid_models_from_database() function that returns a list of
     geoid models available for a given CRS (#2681)

   o Added proj_get_celestial_body_list_from_database that returns a list
     of celestial bodies in the PROJ database (#2667)

   o Added proj_get_celestial_body_name() (#2662)

 + Various improvements

   o proj_trans/cs2cs: If two operations have the same accuracy,
     use the one that is contained within a larger one (#2750)

   o Share SQLite database handle among all contexts (#2738)

   o Add proj/internal/mutex.hpp as compat layer for mingw32 for std::mutex (#2736)

   o projsync: make it filter out files not intended for the current version (#2725)

   o Improvements related to DerivedVerticalCRS using Change Unit and
     Height/Depth reversal methods (#2696)

   o Update internal nlohmann/json to 3.9.1, and add a CMake option to
     be able to use external nlohmann/json (#2686)

   o createFromUserInput(): change name of CRS built from URN combined references to match the convention of EPSG projected CRS (#2677)

   o Parse compound id with two authorities, like ESRI:103668+EPSG:5703 (#2669)

   o Added projinfo option --list-crs (supports --area) (#2663)

   o Added support for hyperbolic Cassini-Soldner (#2637)

   o Added capability to get SQL statements to add custom CRS in the database (#2577)

 Bug fixes
 ---------

 o Fix 'Please include winsock2.h before windows.h' warning with msys (#2692)

 o Minor changes to address lint in geodesic.c (#2752)

 o BoundCRS::identify(): avoid incompatible transformation for
   WKT1 / TOWGS84 export (#2747)

 o proj_create(): do not open proj.db if string is a PROJ string,
   even if proj_context_set_autoclose_database() has been set (#2735)

 o Fix export of transformation to PROJ string in a particular situation
   where CompoundCRS are involved (#2721)