[PROJ] PROJ 9.9.0RC1 and PROJ-data 1.25RC1

[Howard Butler]

+1 Howard

> On Sep 14, 2026, at 1:33 AM, Javier Jimenez Shaw via PROJ <proj at lists.osgeo.org> wrote:
> 
> +1 Javier
> 
> On Mon, 14 Sept 2026, 07:13 Kristian Evers via PROJ, <proj at lists.osgeo.org <mailto:proj at lists.osgeo.org>> wrote:
>> PSC Members,
>> 
>> No issues has been identified in either release candidate so I hereby motion that they are promoted to the final release. 
>> 
>> I'll start with my +1.
>> 
>> /Kristian
>> 
>> 
>> > On 8 Sep 2026, at 13.34, Kristian Evers via PROJ <proj at lists.osgeo.org <mailto: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-9.9.0RC1.tar.gz
>> > https://download.osgeo.org/proj/proj-9.9.0RC1.zip
>> > 
>> > https://download.osgeo.org/proj/proj-data-1.25RC1.tar.gz
>> > https://download.osgeo.org/proj/proj-data-1.25RC1.zip
>> > 
>> > The PROJ release includes both updates and bug fixes. See the release notes below.
>> > 
>> > The PROJ-data release comes with the following additions:
>> > 
>> > * Grids for Greenlandic vertical CRSs GLLAT(2025) and GLMSL(2025)
>> > * Norwegian grid for converting ETRS89 ellipsoidal heights to NN2000:2025 heights
>> > 
>> > 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
>> > 
>> > ## 9.9.0
>> > 
>> > ### Updates
>> > 
>> > #### Operations
>> > 
>> > * `tinshift`: support TIN GeoPackage files (#4603)
>> > 
>> > * Optimize `+step +proj=helmert +inv +x=X +y=Y +z=Z +step +proj=helmert +inv +x=-X +y=-Y +z=-Z` as `+proj=noop` (#4775)
>> > 
>> > * Optimization: replace iterative Aitoff inverse with closed-form inverse (#4796)
>> > 
>> > * Adds implementation of Transverse Mercator Zoned Grid System (supporting EPSG:32600 and EPSG:32700) (#4805)
>> > 
>> > * Add seismic bin grid operation methods (EPSG:9666 and EPSG:1049) (#4807)
>> > 
>> > * IVEA: DSEA projection onto icosahedron net (#4817)
>> > 
>> > #### API
>> > 
>> > * Add `proj_create_linear_3D_affine_parametric_conversion()` (#4682)
>> > 
>> > * Optimize `fwd_prepare()` (#4712)
>> > 
>> > * Add support for `DerivedProjectedCRS` registration (#4727)
>> > 
>> > * C++ API: CartesianCS::create(): by default check that all axis have the same unit (#4728)
>> > 
>> > * `createOperations()`: tune `geod_crs_of_datum_ensemble` <--> `geod_crs_of_another_datum` (#4773)
>> > 
>> > * add `proj_crs_is_dynamic()`, and `cs2cs`: warn when source/destination CRS is dynamic, but no epoch is provided (#4792)
>> > 
>> > * `createOperations()`: add heuristics to make BD72 + Ostend height to Amersfoort + NAP height lead to optimal result again (#4821)
>> > 
>> > * Make sure that WKT2 export of CRS imported from PROJ.4 strings or WKT1 is identical (#4844)
>> > 
>> > #### CMake
>> > 
>> > * Only add CPack related options when PROJ is the top level project. (#4722)
>> > 
>> > * Increase CMake minimum version from 3.16 to 3.22.1 (#4824)
>> > 
>> > * Replace PROJ_DATA_PATH with ${CMAKE_INSTALL_DATADIR}/proj (#4843)
>> > 
>> > * Define `target_compile_features` with C/C++ standards (#4847)
>> > 
>> > #### Database
>> > 
>> > * Database: update to EPSG v13.102 (#4829)
>> > 
>> > 
>> > ### Bug Fixes
>> > 
>> > * Refactor time parsing with thread-safe localtime and leap year fix (#4692)
>> > 
>> > * Make sure `projinfo --crs-extent-use none` works as expected (#4699)
>> > 
>> > * Fix SQLite3 version check so it is done by `find_package` (#4753)
>> > 
>> > 
>> > _______________________________________________
>> > PROJ mailing list
>> > PROJ at lists.osgeo.org <mailto:PROJ at lists.osgeo.org>
>> > https://lists.osgeo.org/mailman/listinfo/proj
>> 
>> 
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