diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index c0d04798..6208124f 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -47,3 +47,26 @@ jobs:
           environments: lb-${{ matrix.package }}
       - name: Test with lowest direct dependencies
         run: pixi run -e lb-${{ matrix.package }} test ${{ matrix.package }}
+
+  unpinned:
+    name: Unpinned Test ${{ matrix.package }}
+    strategy:
+      fail-fast: false
+      matrix:
+        package:
+          - essreduce
+          - essimaging
+          - essnmx
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+      - uses: prefix-dev/setup-pixi@v0.9.4
+        with:
+          cache: false
+          frozen: false
+          locked: false
+          environments: ess-unpinned
+      - name: Test with latest dependencies
+        run: pixi run -e ess-unpinned pytest packages/${{ matrix.package }}/tests
diff --git a/pixi.toml b/pixi.toml
index 85032c97..5675ff48 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -19,6 +19,12 @@ args = ["package"]
 
 # ==================== Package features ====================
 
+# ess-unpinned (All packages latest releases)
+[feature.ess-unpinned.pypi-dependencies]
+essreduce = { extras = ["test"] }
+essimaging = { extras = ["test"] }
+essnmx = { extras = ["test"] }
+
 # essreduce (core package, no workspace deps)
 [feature.essreduce.pypi-dependencies]
 essreduce = { path = "packages/essreduce", editable = true, extras = ["test"] }
@@ -74,6 +80,9 @@ lb-essreduce = { features = ["essreduce"], solve-group = "lower-bound" }
 lb-essimaging = { features = ["essimaging", "essreduce"], solve-group = "lower-bound" }
 lb-essnmx = { features = ["essnmx", "essreduce"], solve-group = "lower-bound" }
 
+# Unpinned test environment
+ess-unpinned = { features = ["ess-unpinned"], solve-group = "unpinned" }
+
 # Docs environments (package with docs extra + pandoc)
 docs-essreduce = { features = ["docs-essreduce", "docs"], solve-group = "default" }
 docs-essimaging = { features = ["docs-essimaging", "docs-essreduce", "docs"], solve-group = "default" }
diff --git a/tools/transfer-issues.sh b/tools/transfer-issues.sh
new file mode 100755
index 00000000..ddf74eea
--- /dev/null
+++ b/tools/transfer-issues.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+#
+# You need `gh` client and it needs to be authenticated before you run this script.
+# It creates a label of the original repository name in both `ess*` and `ess` repository
+# and assign the label to all issues to be transferred.
+# And then it transfers all issues to `ess` repository.
+# All links to the other issues from the original repo will be updated.
+# It only finds 200 issues, which should be enough for all issues,
+# but if you have more issues left, you may need to manually run the script again.
+
+RED='\033[0;31m'
+BLUE='\033[0;34m'
+GREEN='\033[0;32m'
+NC='\033[0m'
+
+echo -e "${BLUE}Repository name${GREEN} to move issues from:${NC}"
+read  repo_name
+echo -e "Transferring issues from ${GREEN}${repo_name}${NC} to the new ${RED}``ess``${NC} repository..."
+
+REPO_FLAG="-R scipp/${repo_name}"
+numbers=$(gh issue list ${REPO_FLAG} --limit 200 --state all --json number -q ".[].number")
+
+labels_str=$(gh label list ${REPO_FLAG} --json name -q ".[].name")
+labels=($labels_str)
+
+label_exist=0
+for label in "${labels[@]}"; do
+    if [[ $label = "${repo_name}" ]]; then
+        label_exist=1;
+        break;
+    fi
+done
+if [[ $label_exist = 0 ]]; then
+    echo -e "Label ${repo_name} does not exist. Creating one...";
+    gh label create ${repo_name} ${REPO_FLAG} --description "Issues for ${repo_name}.";
+    # Creating the same label so that it will be kept after transfer.
+    gh label create ${repo_name} -R scipp/ess --description "Issues for ${repo_name}.";
+else
+    echo -e "Label ${repo_name} exists. Assigning the labels to the issues to be moved...";
+fi
+
+for number in ${numbers};
+do
+	read -r -a issue_labels <<< $(gh issue view ${number} --json labels -q ".labels[].name" ${REPO_FLAG});
+	issue_label_exist=0
+        for issue_label in "${issue_labels[@]}"; do
+	  if [[ ${issue_label} = ${repo_name} ]]; then
+	    issue_label_exist=1;
+	    break;
+	  fi
+	done
+
+	if [[ ${issue_label_exist} = 0 ]]; then
+	  echo -e "Adding label ${BLUE}${repo_name}${NC} to issue #${GREEN}${number}${NC} ...";
+	  gh issue edit ${number} --add-label ${repo_name} ${REPO_FLAG};
+        else
+	  echo -e "Label ${BLUE}${repo_name}${NC} already assigned to issues #${GREEN}${number}${NC}.";
+	fi
+
+done
+
+num_issues=${#numbers[@]};
+if [[ ${num_issues} = 1 ]]; then
+  if [[ ${#numbers[0]} = 0 ]]; then
+	  unset numbers[0];
+  fi
+  num_issues=${#numbers[@]};
+fi
+
+if [[ ${num_issues} = 200 ]]; then
+	echo -e "Found ${RED}${num_issue}${NC} issues. There may be more issues left.";
+fi
+
+echo "Transferring ${num_issues} issues..."
+for number in ${numbers};
+do
+	echo -e "Transferring issue #${GREEN}${number}${NC} from ${BLUE}${repo_name}${NC} to ${RED}ess${NC} repository...";
+	gh issue transfer ${number} scipp/ess ${REPO_FLAG};
+done
+