[PROJ] PROJ 9.7.0RC1 & PROJ-data 1.23RC1

[Kristian Evers]

PSC members,

I have not received any reports of problems with the two release candidates and therefore put it to you to approve that they are promoted to final releases. 

I'll start with my +1.

/Kristian


On Monday, September 8th, 2025 at 21:23, Kristian Evers via PROJ <proj at lists.osgeo.org> wrote:

> All,
> 
> in preparation for a new round of PROJ and PROJ-data release I have uploaded release candidates for both packages.
> 
> Download the archives here:
> 
> https://download.osgeo.org/proj/proj-9.7.0RC1.tar.gz
> https://download.osgeo.org/proj/proj-9.7.0RC1.zip
> 
> https://download.osgeo.org/proj/proj-data-1.23RC1.tar.gz
> https://download.osgeo.org/proj/proj-data-1.23RC1.zip
> 
> The PROJ release includes both updates and bug fixes. See the release notes below.
> 
> The PROJ-data release comes with the following additions:
> 
> * Slovenian height conversion grid, SVS2000 to SVS2010
> * Norwegian ETRS89 transformation grid covering Svalbard
> 
> Please test the release candidates and report any issues you may find with them.
> Either here on the mailing list or on GitHub.
> 
> /Kristian
> 
> 
> ————————————————————————————————
> 
> 
> # PROJ Release Notes
> 
> ## 9.7.0
> 
> ### Updates
> 
> * Implement 'exact' authalic latitude->geographic latitude and use it in `+proj=aea/cea/laea/eqearth/healpix/rhealpix` (#4441)
> 
> 
> * Implement uniform conversions between auxiliary latitudes (#4446)
> 
> * WKT2 parser: recognize `DEFININGTRANSFORMATION` (but ignore it) (#4484)
> 
> * Database: add values from `alias_name` table that were removed in older EPSG releases, to improve
> recognizing old WKT strings (#4490)
> 
> * `proj_trans_bounds()`: sample points within the source grid to avoid missing extent such as world-wide
> coverage from EPSG:4326 to ESRI:54099 (Spilhaus) (#4513)
> 
> * Enable `-Wimplicit-fallthrough`, `-Wdeprecated-copy-dtor`, `-Wweak-vtables`,
> `-Wdocumentation-unknown-command` when possible (#4516)
> 
> * Geostationary projection: speed up inverse spherical and ellipsoidal computation (#4523)
> 
> * WKT importer: better error message when `BBOX` is invalid (e.g south_lat > north_lat) (#4525)
> 
> 
> * Added `proj_geod_direct` for PJ trasformation object (#4532)
> 
> * Support exporting Mercator (Spherical) on a sphere as `Mercator_1SP` in WKT1 (#4555)
> 
> * Database: update to EPSG v12.022 (#4562)
> 
> 
> ### Bug Fixes
> 
> * `proj_trans_bounds()`: avoid erroring out, in some cases, when PJ* object is directly constructed
> from a PROJ pipeline (#4512)
> 
> * Fix issue related to `D_Unknown_based_on_WGS_84_ellipsoid` datum name (#4515)
> 
> * `proj_trans_bounds()`: fix 9.6.2 regression when going from long/lat crossing antimeridian to
> projected (#4526)
> 
> * opt_parse: avoid potential heap-buffer-overflow when parsing non-ASCII characters (affect
> `cct` and `gie`) (#4530)
> 
> * `gie`: fix memory leak on non existing input file (#4531)
> 
> * Database: referene `nl_nsgi_nllat2018.tif` and `nl_nsgi_bongeo2004.tif` grids (#4534)
> 
> * Fixes related to WKT import/export of `DerivedGeodetic/GeographicCRS` (#4536)
> 
> * Fix `tolower()`/`toupper()` implementation to not lead to undefined behavior (#4539)
> 
> * IAU2015 CRS: fix wrong code for coordinate system of North Polar and South Polar CRSs (#4545)
> 
> * `createOperations()`: fix a case involving 2 CompoundCRS, one with TOWGS84, and the 2
> verticalCRS differing by units (#4552)
> 
> * On SQLite query error, show first the error msg than the sql query (#4553)
> 
> * Allow geodesic inverse for meridional points on prolate ellipsoid (#4560)
> 
> 
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