diff --git a/.github/workflows/build-and-release.yaml b/.github/workflows/build-and-release.yaml
index 16278f5d..3326a922 100644
--- a/.github/workflows/build-and-release.yaml
+++ b/.github/workflows/build-and-release.yaml
@@ -38,7 +38,7 @@ jobs:
 
       - name: Write release notes 
         run: |
-          echo "${{ query_release_info.outputs.release-notes }}"" >notes.txt
+          echo "${{ steps.query_release_info.outputs.release-notes }}" >notes.txt
 
       - name: Create Release
         id: create_release
@@ -57,14 +57,8 @@ jobs:
     needs: create_release
     outputs:
       job_status: ${{ job.status }}
-    strategy:
-      max-parallel: 2
-      fail-fast: true
-      matrix:
-        include:
-          - os: [ubuntu-24.04]
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-24.04
 
     steps:
       - name: Checkout project
@@ -83,7 +77,7 @@ jobs:
       - name: Build packages
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_VERSION=${{ github.ref_name }} -DCPACK_SYSTEM_NAME=${{ matrix.os }} ..
+          cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_VERSION=${{ github.ref_name }} -DCPACK_SYSTEM_NAME="ubuntu-24.04" ..
           make -j2
           make package
           cmake -DCEPH_ENABLED=1 ..
@@ -91,7 +85,6 @@ jobs:
           make package
 
       - name: Run unit tests
-        if: "matrix.os == 'ubuntu-24.04'"
         run: |
           cd build
           make test
@@ -104,7 +97,6 @@ jobs:
           release-tag: ${{ github.ref_name }}
 
       - name: Build documentation
-        if: "matrix.os == 'ubuntu-24.04'"
         run: |
           cd build
           make doc
@@ -130,7 +122,6 @@ jobs:
         run: pip install -r docs/requirements.txt
 
       - name: Publish documentation
-        if: "matrix.os == 'ubuntu-24.04'"
         run: |
           git config user.name github-actions
           git config user.email github-actions@github.com
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d420d935..deb74fe9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ Le format est basé sur [Keep a Changelog](https://keepachangelog.com/) et ce pr
 
 ## [Unreleased]
 
+## [4.0.0] - 2026-06-26
+
+### Changed
+
+- Correction de conversions au format API OGC (format et bbox)
+
+
 ## [3.1.0] - 2026-06-25
 
 ### Added
@@ -225,7 +232,8 @@ Les librairies sont gérées de manière indépendantes, conditionnées pour êt
 
 [1.0.3]: https://github.com/rok4/core-cpp/releases/tag/1.0.3
 
-[Unreleased]: https://github.com/rok4/core-cpp/compare/3.1.0...HEAD
+[Unreleased]: https://github.com/rok4/core-cpp/compare/4.0.0...HEAD
+[4.0.0]: https://github.com/rok4/core-cpp/compare/3.1.0...4.0.0
 [3.1.0]: https://github.com/rok4/core-cpp/compare/3.0.0...3.1.0
 
 [3.0.0]: https://github.com/rok4/core-cpp/compare/2.0.6...3.0.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dbf659d5..35c5c0cb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@ set(CEPH_ENABLED 0 CACHE BOOL "Build with ceph storage")
 set(KDU_ENABLED 0 CACHE BOOL "Build with kakadu")
 set(UNITTEST_ENABLED 1 CACHE BOOL "Unit tests compilation")
 set(DOC_ENABLED 1 CACHE BOOL "Documentation compilation")
-set(CPACK_SYSTEM_NAME "ubuntu-20.04" CACHE STRING "Building OS, to deduce package format to generate")
+set(CPACK_SYSTEM_NAME "ubuntu-22.04" CACHE STRING "Building OS, to deduce package format to generate")
 set(CPACK_PACKAGE_NAME "librok4-dev" CACHE STRING "Package's name")
 
 set(VERSION ${BUILD_VERSION})
@@ -178,7 +178,7 @@ if(CEPH_ENABLED)
 else(CEPH_ENABLED)
     set(CPACK_PACKAGE_FILE_NAME "librok4-base-${VERSION}-${CPACK_SYSTEM_NAME}-${BUILD_ARCHITECTURE}")
 endif(CEPH_ENABLED)
-set(CPACK_PACKAGING_INSTALL_PREFIX "/")
+set(CPACK_PACKAGING_INSTALL_PREFIX "/usr")
 
 set(CPACK_PACKAGE_VERSION ${VERSION})
 set(CPACK_PACKAGE_VENDOR "IGN")
diff --git a/include/rok4/enums/Format.h b/include/rok4/enums/Format.h
index e1f5f91a..0938b079 100644
--- a/include/rok4/enums/Format.h
+++ b/include/rok4/enums/Format.h
@@ -374,14 +374,14 @@ std::string to_string ( eFormat format );
 std::string to_mime_type ( eFormat format );
 
 /**
- * \~french \brief Conversion d'un format vers une chaîne de caractère (format OGC API Tiles)
+ * \~french \brief Conversion d'un format vers une chaîne de caractère (format OGC API)
  * \param[in] format format à convertir
- * \return format OGC API Tiles du format
- * \~english \brief Convert a format to a string (format OGC API Tiles)
+ * \return format OGC API du format
+ * \~english \brief Convert a format to a string (format OGC API)
  * \param[in] format format to convert
- * \return format OGC API Tiles of the format
+ * \return format OGC API of the format
  */
-std::string to_tiles_format ( eFormat format );
+std::string to_ogcapi_format ( eFormat format );
 
 /**
  * \~french \brief Conversion d'un format vers une chaîne de caractère (extension)
diff --git a/include/rok4/utils/BoundingBox.h b/include/rok4/utils/BoundingBox.h
index df03d873..6965e407 100644
--- a/include/rok4/utils/BoundingBox.h
+++ b/include/rok4/utils/BoundingBox.h
@@ -432,12 +432,12 @@ class BoundingBox {
     }
 
     /**
-     * \~french \brief Exporte la bbox en JSON conformément à OGC API Tiles
+     * \~french \brief Exporte la bbox en JSON conformément à OGC API
      * \details La bbox est considérée comme étant en CRS84
-     * \~english \brief Get the bbox as JSON, OGC API Tiles compliant
+     * \~english \brief Get the bbox as JSON, OGC API compliant
      * \details Bbox is considered as CRS84 one
      */
-    json11::Json to_json_tiles() const {
+    json11::Json to_json_ogcapi() const {
         return json11::Json::object {
             { "spatial", json11::Json::object {
                 { "crs", "http://www.opengis.net/def/crs/OGC/1.3/CRS84" },
diff --git a/src/enums/Format.cpp b/src/enums/Format.cpp
index 4d8cd2c9..d473257d 100644
--- a/src/enums/Format.cpp
+++ b/src/enums/Format.cpp
@@ -258,7 +258,7 @@ const char *eformat_mime[] = {
     "application/x-protobuf"
 };
 
-const char *eformat_tiles[] = {
+const char *eformat_ogcapi[] = {
     "UNKNOWN",
 
     "tiff",
@@ -269,9 +269,9 @@ const char *eformat_tiles[] = {
     "tiff",
     "tiff",
 
+    "bil",
     "tiff",
-    "tiff",
-    "tiff",
+    "bil",
     "tiff",
 
     "mvt"
@@ -407,8 +407,8 @@ std::string to_mime_type ( eFormat format ) {
     return std::string ( eformat_mime[format] );
 }
 
-std::string to_tiles_format ( eFormat format ) {
-    return std::string ( eformat_tiles[format] );
+std::string to_ogcapi_format ( eFormat format ) {
+    return std::string ( eformat_ogcapi[format] );
 }
 
 std::string to_extension ( eFormat format ) {
diff --git a/src/image/file/LibtiffImage.cpp b/src/image/file/LibtiffImage.cpp
index 19fb2547..bee1aba4 100644
--- a/src/image/file/LibtiffImage.cpp
+++ b/src/image/file/LibtiffImage.cpp
@@ -562,7 +562,7 @@ int LibtiffImage::_getline ( T* buffer, int line ) {
 
                 // Si l'image a une photometrie Palette ou bien YCBCR --> TIFFReadRGBATile
                 if (palette || photometric == Photometric::YCBCR) {
-                    uint32* palette_buffer = new uint32[width * rowsperstrip];
+                    uint32_t* palette_buffer = new uint32_t[width * rowsperstrip];
 
                     size = TIFFReadRGBATile(tif, t * tile_width, current_strip * tile_height, palette_buffer );
                     if ( size == 0 ) {
@@ -608,7 +608,7 @@ int LibtiffImage::_getline ( T* buffer, int line ) {
         } else {
             // Si l'image a une photometrie Palette ou bien YCBCR --> TIFFReadRGBAStrip
             if (palette || photometric == Photometric::YCBCR) {
-                uint32* palette_buffer = new uint32[width * rowsperstrip];
+                uint32_t* palette_buffer = new uint32_t[width * rowsperstrip];
                 size = TIFFReadRGBAStrip ( tif, line, palette_buffer);
                 if ( size == 0 ) {
                     BOOST_LOG_TRIVIAL(error) <<  "Cannot read strip number " << current_strip << " of image with color map " << filename ;