diff --git a/CITATION.cff b/CITATION.cff
index de479f7ccf9a..1f035ff76d03 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -2,8 +2,8 @@ cff-version: 1.2.0
 message: Please cite this software using these metadata or in the CITATION file.
 type: software
 title: GDAL
-version: 3.9.0beta2
-date-released: 2024-04-29
+version: 3.9.0
+date-released: 2024-05-06
 doi: 10.5281/zenodo.5884351
 abstract: GDAL is a translator library for raster and vector geospatial data
   formats that is released under an MIT style Open Source License by the Open
diff --git a/NEWS.md b/NEWS.md
index 7cf3486b1155..d8658b89d116 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -71,6 +71,10 @@ See [MIGRATION_GUIDE.TXT](https://github.com/OSGeo/gdal/blob/release/3.8/MIGRATI
 * /vsiaz/: fix RmdirRecursive() on an empty directory with just the
   .gdal_marker_for_dir special marker file
 * /vsis3/: include region to build s3.{region}.amazonaws.com host name (#9449)
+* /vsigs/: fix RmdirRecursive() on an empty directory
+* /vsigs/ UnlinkBatch(): make sure that path config options are checked for the
+  deleted files and not '/vsigs/batch/
+* /vsiaz/ UnlinkBatch(): make sure that path config options are checked for the deleted files
 * Add VSIVirtualHandle::Printf()
 * Add VSIRemovePluginHandler() to enable removal of virtual filesystems (#8772)
 * No longer alias CPLMutex, CPLCond and CPLJoinableThread to void in non-DEBUG
@@ -126,7 +130,9 @@ See [MIGRATION_GUIDE.TXT](https://github.com/OSGeo/gdal/blob/release/3.8/MIGRATI
 * GDALSuggestWarpOutput(): make it return original potential non-square pixel
   shape for a south-up oriented dataset (#9336)
 * Warper: add a EXCLUDED_VALUES warping option to specify pixel values to be
-  ignored as contributing source pixels during average resampling
+  ignored as contributing source pixels during average resampling. And
+  similarly, add a NODATA_VALUES_PCT_THRESHOLD warping option for nodata/
+  transparent pixels.
 * GDALFillNodata(): add a INTERPOLATION=NEAREST option
 * GDALChecksumImage(): read by multiple of blocks for floating-point bands to
   improve performance
@@ -176,7 +182,9 @@ See [MIGRATION_GUIDE.TXT](https://github.com/OSGeo/gdal/blob/release/3.8/MIGRATI
 * gdal2tiles: added support for JPEG output
 * gdal2tiles: Fix case where --exclude still writes fully transparent tiles
   (#9532)
-* gdal2tiles: add --excluded-values and --excluded-values-pct-threshold switches
+* gdal2tiles: add --excluded-values, --excluded-values-pct-threshold and
+  --nodata-values-pct-threshold options
+* gdal2tiles: support an input dataset name not being a file (#9808)
 * gdal2xyz: Change -srcwin parameter type to integer.
 * Python sample scripts: add gdalbuildvrtofvrt.py (#9451)
 * Python utilities: do not display full traceback on OpenDS failures (#9534)
@@ -226,6 +234,10 @@ HDF5 driver:
  * multidim: fix crash on reading compound data type with fixed-length strings
  * multidim: implement GDALMDArray::GetBlockSize() and GetStructuralInfo()
  * improve performance of band IRasterIO() on hyperspectral products
+ * support HDF5EOS metadata where the GROUP=GridStructure has an empty sub
+   GROUP=Dimension (like for AMSR-E/AMSR2 Unified L3 Daily 12.5 km)
+ * implement GetOffset() and GetScale() for netCDF metadata items add_offset
+   and scale_factor
 
 JP2KAK driver:
  * make result of RasterIO() consistent depending if it is called directly or
@@ -284,6 +296,10 @@ TileDB driver:
  * be able to read datasets converted with 'tiledb-cf netcdf-convert'
  * make its identify() method more restrictive by not identifying /vsi file
    systems it doesn't handle
+ * multidim: prevent infinite recursion when opening an array in a group where
+   there are 2 or more 2D+ arrays
+ * multidim: OpenMDArray(): fix opening an array, member of a group, which has
+   no explicit name
 
 VRT driver:
  * add a VRTProcessedDataset new mode to apply chained processing steps that
diff --git a/gcore/gdal_version.h.in b/gcore/gdal_version.h.in
index 250e01f7be17..e615b4d4bdf9 100644
--- a/gcore/gdal_version.h.in
+++ b/gcore/gdal_version.h.in
@@ -24,9 +24,9 @@
 
 #if !defined(DO_NOT_DEFINE_GDAL_DATE_NAME)
 #ifndef GDAL_RELEASE_DATE
-#  define GDAL_RELEASE_DATE     20240429
+#  define GDAL_RELEASE_DATE     20240506
 #endif
 #ifndef GDAL_RELEASE_NAME
-#  define GDAL_RELEASE_NAME     "3.9.0beta2"
+#  define GDAL_RELEASE_NAME     "3.9.0"
 #endif
 #endif