diff --git a/.github/workflows/publish-to-test-pypi.yml b/.github/workflows/publish-to-test-pypi.yml
index 2bb4382..75f5d88 100644
--- a/.github/workflows/publish-to-test-pypi.yml
+++ b/.github/workflows/publish-to-test-pypi.yml
@@ -7,7 +7,6 @@ on:
   push:
     branches:
       - main
-      - feature/grid
 
   # Allow the workflow to be manually triggered from the Actions tab.
   workflow_dispatch:
@@ -142,7 +141,9 @@ jobs:
     runs-on: ubuntu-latest
 
     # Require a tag push to publish a release distribution.
-    if: startsWith(github.ref, 'refs/tags/')
+#    if: >
+#      startsWith(github.ref, 'refs/tags/')
+#      || (github.event_name == 'workflow_dispatch' && github.event.inputs.tag_name != '')
 
     # The distribution will only be published if the tests have passed.
     needs:
@@ -173,7 +174,9 @@ jobs:
     runs-on: ubuntu-latest
 
     # GitHub releases are only uploaded for release (tagged) distributions.
-    needs: [deploy-release]
+    needs:
+      - deploy-release
+      - build
 
     permissions:
       contents: write # IMPORTANT: mandatory for making GitHub Releases
diff --git a/.github/workflows/update-version.yml b/.github/workflows/update-version.yml
new file mode 100644
index 0000000..e467d21
--- /dev/null
+++ b/.github/workflows/update-version.yml
@@ -0,0 +1,45 @@
+name: update-version
+
+# The deployment workflow should only run when changes are merged into the `main` branch.
+# Since a branch protection rule prevents directly pushing to `main` this workflow will
+# only run on a successful merge request.
+on:
+  # Allow the workflow to be manually triggered from the Actions tab.
+  workflow_dispatch:
+    inputs:
+      tag_name:
+        description: 'If you want to update the version and release, type an existing or new version tag (eg. 1.2.0)'
+        required: false
+        default: ''
+
+jobs:
+
+  update-version:
+    name: Update Version
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag_name != '' }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
+      - name: Update version in pyproject.toml
+        run: |
+          sed -i "s/^version = .*/version = \"${{ github.event.inputs.tag_name }}\"/" pyproject.toml
+
+      - name: Update version in setup.cfg
+        run: |
+          sed -i "s/^version = .*/version = ${{ github.event.inputs.tag_name }}/" setup.cfg
+
+      - name: Commit and push version update
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add pyproject.toml setup.cfg
+          git commit -m "chore: update version to ${{ github.event.inputs.tag_name }}"
+          git push
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/src/hecdss/gridded_data.py b/src/hecdss/gridded_data.py
index e6a7af8..f75b82e 100644
--- a/src/hecdss/gridded_data.py
+++ b/src/hecdss/gridded_data.py
@@ -114,12 +114,12 @@ def range_limit_table(self, minval, maxval, range_, bins, datasize, data):
             self.rangeLimitTable[i] = minval + step * i
 
         self.rangeLimitTable[bins - 1] = maxval
-
         # Exceedance
-        for idx in range(datasize):
-            for jdx in range(bins):
-                if data[idx] >= self.rangeLimitTable[jdx]:
-                    self.numberEqualOrExceedingRangeLimit[jdx] += 1
+        sorted_data = np.sort(data)
+        n = len(sorted_data)
+        for jdx in range(bins):
+            idx = np.searchsorted(sorted_data, self.rangeLimitTable[jdx], side="left")
+            self.numberEqualOrExceedingRangeLimit[jdx] = n - idx
 
     def update_grid_info(self):
         """
@@ -135,7 +135,7 @@ def update_grid_info(self):
 
         self.data = np.nan_to_num(self.data, nan=NULL_INT)
         self.numberOfRanges = math.floor(1 + 3.322 * math.log10(n) + 1)
-        flat_data = self.data.flatten()
+        flat_data = self.data.ravel()
         self.range_limit_table(self.minDataValue, self.maxDataValue, bin_range, self.numberOfRanges, n, flat_data)
 
     @staticmethod