diff --git a/api/controllers/console/datasets/datasets_document.py b/api/controllers/console/datasets/datasets_document.py
index e0061f933b..b2fcf3ce7b 100644
--- a/api/controllers/console/datasets/datasets_document.py
+++ b/api/controllers/console/datasets/datasets_document.py
@@ -5,7 +5,7 @@ from typing import cast
 
 from flask import request
 from flask_login import current_user
-from flask_restful import Resource, fields, marshal, marshal_with, reqparse
+from flask_restful import Resource, marshal, marshal_with, reqparse
 from sqlalchemy import asc, desc, select
 from werkzeug.exceptions import Forbidden, NotFound
 
@@ -239,12 +239,10 @@ class DatasetDocumentListApi(Resource):
 
         return response
 
-    documents_and_batch_fields = {"documents": fields.List(fields.Nested(document_fields)), "batch": fields.String}
-
     @setup_required
     @login_required
     @account_initialization_required
-    @marshal_with(documents_and_batch_fields)
+    @marshal_with(dataset_and_document_fields)
     @cloud_edition_billing_resource_check("vector_space")
     @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id):
@@ -290,6 +288,8 @@ class DatasetDocumentListApi(Resource):
 
         try:
             documents, batch = DocumentService.save_document_with_dataset_id(dataset, knowledge_config, current_user)
+            dataset = DatasetService.get_dataset(dataset_id)
+
         except ProviderTokenNotInitError as ex:
             raise ProviderNotInitializeError(ex.description)
         except QuotaExceededError:
diff --git a/api/core/workflow/nodes/agent/agent_node.py b/api/core/workflow/nodes/agent/agent_node.py
index 22c564c1fc..2f28363955 100644
--- a/api/core/workflow/nodes/agent/agent_node.py
+++ b/api/core/workflow/nodes/agent/agent_node.py
@@ -39,6 +39,10 @@ class AgentNode(ToolNode):
     _node_data_cls = AgentNodeData  # type: ignore
     _node_type = NodeType.AGENT
 
+    @classmethod
+    def version(cls) -> str:
+        return "1"
+
     def _run(self) -> Generator:
         """
         Run the agent node
diff --git a/api/core/workflow/nodes/document_extractor/node.py b/api/core/workflow/nodes/document_extractor/node.py
index 9f48b48865..8e6150f9cc 100644
--- a/api/core/workflow/nodes/document_extractor/node.py
+++ b/api/core/workflow/nodes/document_extractor/node.py
@@ -451,7 +451,7 @@ def _extract_text_from_excel(file_content: bytes) -> str:
                 df = df.applymap(lambda x: " ".join(str(x).splitlines()) if isinstance(x, str) else x)  # type: ignore
 
                 # Combine multi-line text in column names into a single line
-                df.columns = pd.Index([" ".join(col.splitlines()) for col in df.columns])
+                df.columns = pd.Index([" ".join(str(col).splitlines()) for col in df.columns])
 
                 # Manually construct the Markdown table
                 markdown_table += _construct_markdown_table(df) + "\n\n"
diff --git a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
index 2995f0682f..0b9e98f28a 100644
--- a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
+++ b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
@@ -71,6 +71,10 @@ class KnowledgeRetrievalNode(LLMNode):
     _node_data_cls = KnowledgeRetrievalNodeData  # type: ignore
     _node_type = NodeType.KNOWLEDGE_RETRIEVAL
 
+    @classmethod
+    def version(cls):
+        return "1"
+
     def _run(self) -> NodeRunResult:  # type: ignore
         node_data = cast(KnowledgeRetrievalNodeData, self.node_data)
         # extract variables
diff --git a/api/core/workflow/nodes/question_classifier/question_classifier_node.py b/api/core/workflow/nodes/question_classifier/question_classifier_node.py
index 1f50700c7e..a518167cc6 100644
--- a/api/core/workflow/nodes/question_classifier/question_classifier_node.py
+++ b/api/core/workflow/nodes/question_classifier/question_classifier_node.py
@@ -40,6 +40,10 @@ class QuestionClassifierNode(LLMNode):
     _node_data_cls = QuestionClassifierNodeData  # type: ignore
     _node_type = NodeType.QUESTION_CLASSIFIER
 
+    @classmethod
+    def version(cls):
+        return "1"
+
     def _run(self):
         node_data = cast(QuestionClassifierNodeData, self.node_data)
         variable_pool = self.graph_runtime_state.variable_pool
diff --git a/api/models/model.py b/api/models/model.py
index 75202d9367..c980e61baf 100644
--- a/api/models/model.py
+++ b/api/models/model.py
@@ -832,7 +832,12 @@ class Conversation(Base):
 
     @property
     def first_message(self):
-        return db.session.query(Message).filter(Message.conversation_id == self.id).first()
+        return (
+            db.session.query(Message)
+            .filter(Message.conversation_id == self.id)
+            .order_by(Message.created_at.asc())
+            .first()
+        )
 
     @property
     def app(self):
diff --git a/api/tests/unit_tests/core/workflow/nodes/base/test_base_node.py b/api/tests/unit_tests/core/workflow/nodes/base/test_base_node.py
new file mode 100644
index 0000000000..8712b61a23
--- /dev/null
+++ b/api/tests/unit_tests/core/workflow/nodes/base/test_base_node.py
@@ -0,0 +1,36 @@
+from core.workflow.nodes.base.node import BaseNode
+from core.workflow.nodes.enums import NodeType
+
+# Ensures that all node classes are imported.
+from core.workflow.nodes.node_mapping import NODE_TYPE_CLASSES_MAPPING
+
+_ = NODE_TYPE_CLASSES_MAPPING
+
+
+def _get_all_subclasses(root: type[BaseNode]) -> list[type[BaseNode]]:
+    subclasses = []
+    queue = [root]
+    while queue:
+        cls = queue.pop()
+
+        subclasses.extend(cls.__subclasses__())
+        queue.extend(cls.__subclasses__())
+
+    return subclasses
+
+
+def test_ensure_subclasses_of_base_node_has_node_type_and_version_method_defined():
+    classes = _get_all_subclasses(BaseNode)  # type: ignore
+    type_version_set: set[tuple[NodeType, str]] = set()
+
+    for cls in classes:
+        # Validate that 'version' is directly defined in the class (not inherited) by checking the class's __dict__
+        assert "version" in cls.__dict__, f"class {cls} should have version method defined (NOT INHERITED.)"
+        node_type = cls._node_type
+        node_version = cls.version()
+
+        assert isinstance(cls._node_type, NodeType)
+        assert isinstance(node_version, str)
+        node_type_and_version = (node_type, node_version)
+        assert node_type_and_version not in type_version_set
+        type_version_set.add(node_type_and_version)
diff --git a/api/tests/unit_tests/core/workflow/nodes/test_document_extractor_node.py b/api/tests/unit_tests/core/workflow/nodes/test_document_extractor_node.py
index 76bb640d1c..66c7818adf 100644
--- a/api/tests/unit_tests/core/workflow/nodes/test_document_extractor_node.py
+++ b/api/tests/unit_tests/core/workflow/nodes/test_document_extractor_node.py
@@ -342,3 +342,26 @@ def test_extract_text_from_excel_all_sheets_fail(mock_excel_file):
     assert result == ""
 
     assert mock_excel_instance.parse.call_count == 2
+
+
+@patch("pandas.ExcelFile")
+def test_extract_text_from_excel_numeric_type_column(mock_excel_file):
+    """Test extracting text from Excel file with numeric column names."""
+
+    # Test numeric type column
+    data = {1: ["Test"], 1.1: ["Test"]}
+
+    df = pd.DataFrame(data)
+
+    # Mock ExcelFile
+    mock_excel_instance = Mock()
+    mock_excel_instance.sheet_names = ["Sheet1"]
+    mock_excel_instance.parse.return_value = df
+    mock_excel_file.return_value = mock_excel_instance
+
+    file_content = b"fake_excel_content"
+    result = _extract_text_from_excel(file_content)
+
+    expected_manual = "| 1.0 | 1.1 |\n| --- | --- |\n| Test | Test |\n\n"
+
+    assert expected_manual == result
diff --git a/web/app/components/app/log/list.tsx b/web/app/components/app/log/list.tsx
index 208fddecd1..dd72c6c810 100644
--- a/web/app/components/app/log/list.tsx
+++ b/web/app/components/app/log/list.tsx
@@ -41,6 +41,7 @@ import { buildChatItemTree, getThreadMessages } from '@/app/components/base/chat
 import { getProcessedFilesFromResponse } from '@/app/components/base/file-uploader/utils'
 import cn from '@/utils/classnames'
 import { noop } from 'lodash-es'
+import PromptLogModal from '../../base/prompt-log-modal'
 
 dayjs.extend(utc)
 dayjs.extend(timezone)
@@ -190,11 +191,13 @@ function DetailPanel({ detail, onFeedback }: IDetailPanel) {
   const { userProfile: { timezone } } = useAppContext()
   const { formatTime } = useTimestamp()
   const { onClose, appDetail } = useContext(DrawerContext)
-  const { currentLogItem, setCurrentLogItem, showMessageLogModal, setShowMessageLogModal, currentLogModalActiveTab } = useAppStore(useShallow(state => ({
+  const { currentLogItem, setCurrentLogItem, showMessageLogModal, setShowMessageLogModal, showPromptLogModal, setShowPromptLogModal, currentLogModalActiveTab } = useAppStore(useShallow(state => ({
     currentLogItem: state.currentLogItem,
     setCurrentLogItem: state.setCurrentLogItem,
     showMessageLogModal: state.showMessageLogModal,
     setShowMessageLogModal: state.setShowMessageLogModal,
+    showPromptLogModal: state.showPromptLogModal,
+    setShowPromptLogModal: state.setShowPromptLogModal,
     currentLogModalActiveTab: state.currentLogModalActiveTab,
   })))
   const { t } = useTranslation()
@@ -516,6 +519,16 @@ function DetailPanel({ detail, onFeedback }: IDetailPanel) {
           defaultTab={currentLogModalActiveTab}
         />
       )}
+      {!isChatMode && showPromptLogModal && (
+        <PromptLogModal
+          width={width}
+          currentLogItem={currentLogItem}
+          onCancel={() => {
+            setCurrentLogItem()
+            setShowPromptLogModal(false)
+          }}
+        />
+      )}
     </div>
   )
 }
diff --git a/web/app/components/app/text-generate/item/index.tsx b/web/app/components/app/text-generate/item/index.tsx
index aa3ffa33c4..92d86351e0 100644
--- a/web/app/components/app/text-generate/item/index.tsx
+++ b/web/app/components/app/text-generate/item/index.tsx
@@ -171,7 +171,7 @@ const GenerationItem: FC<IGenerationItemProps> = ({
       appId: params.appId as string,
       messageId: messageId!,
     })
-    const logItem = {
+    const logItem = Array.isArray(data.message) ? {
       ...data,
       log: [
         ...data.message,
@@ -185,6 +185,11 @@ const GenerationItem: FC<IGenerationItemProps> = ({
           ]
           : []),
       ],
+    } : {
+      ...data,
+      log: [typeof data.message === 'string' ? {
+        text: data.message,
+      } : data.message],
     }
     setCurrentLogItem(logItem)
     setShowPromptLogModal(true)
diff --git a/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx b/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx
index 9c82ee748b..3240496b62 100644
--- a/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx
+++ b/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx
@@ -324,7 +324,7 @@ const ChatVariableModal = ({
             {type === ChatVarType.String && (
               // Input will remove \n\r, so use Textarea just like description area
               <textarea
-                className='system-sm-regular placeholder:system-sm-regular block h-20 w-full resize-none appearance-none rounded-lg border border-transparent bg-components-input-bg-normal p-2 caret-primary-600 outline-none placeholder:text-components-input-text-placeholder hover:border-components-input-border-hover hover:bg-components-input-bg-hover focus:border-components-input-border-active focus:bg-components-input-bg-active focus:shadow-xs'
+                className='system-sm-regular placeholder:system-sm-regular block h-20 w-full resize-none appearance-none rounded-lg border border-transparent bg-components-input-bg-normal p-2 text-components-input-text-filled caret-primary-600 outline-none placeholder:text-components-input-text-placeholder hover:border-components-input-border-hover hover:bg-components-input-bg-hover focus:border-components-input-border-active focus:bg-components-input-bg-active focus:shadow-xs'
                 value={value}
                 placeholder={t('workflow.chatVariable.modal.valuePlaceholder') || ''}
                 onChange={e => setValue(e.target.value)}
diff --git a/web/app/components/workflow/panel/debug-and-preview/index.tsx b/web/app/components/workflow/panel/debug-and-preview/index.tsx
index a1d0997fd9..ff09f48625 100644
--- a/web/app/components/workflow/panel/debug-and-preview/index.tsx
+++ b/web/app/components/workflow/panel/debug-and-preview/index.tsx
@@ -51,8 +51,10 @@ const DebugAndPreview = () => {
 
   const workflowCanvasWidth = useStore(s => s.workflowCanvasWidth)
   const nodePanelWidth = useStore(s => s.nodePanelWidth)
-  const [panelWidth, setPanelWidth] = useState(400)
+  const panelWidth = useStore(s => s.previewPanelWidth)
+  const setPanelWidth = useStore(s => s.setPreviewPanelWidth)
   const handleResize = useCallback((width: number) => {
+    localStorage.setItem('debug-and-preview-panel-width', `${width}`)
     setPanelWidth(width)
   }, [setPanelWidth])
   const maxPanelWidth = useMemo(() => {
diff --git a/web/app/components/workflow/store/workflow/layout-slice.ts b/web/app/components/workflow/store/workflow/layout-slice.ts
index 44f9b9b12c..91c80ba84a 100644
--- a/web/app/components/workflow/store/workflow/layout-slice.ts
+++ b/web/app/components/workflow/store/workflow/layout-slice.ts
@@ -10,6 +10,8 @@ export type LayoutSliceShape = {
   setRightPanelWidth: (width: number) => void
   nodePanelWidth: number
   setNodePanelWidth: (width: number) => void
+  previewPanelWidth: number
+  setPreviewPanelWidth: (width: number) => void
   otherPanelWidth: number
   setOtherPanelWidth: (width: number) => void
   bottomPanelWidth: number // min-width = 400px; default-width = auto || 480px;
@@ -31,6 +33,8 @@ export const createLayoutSlice: StateCreator<LayoutSliceShape> = set => ({
   setRightPanelWidth: width => set(() => ({ rightPanelWidth: width })),
   nodePanelWidth: localStorage.getItem('workflow-node-panel-width') ? Number.parseFloat(localStorage.getItem('workflow-node-panel-width')!) : 400,
   setNodePanelWidth: width => set(() => ({ nodePanelWidth: width })),
+  previewPanelWidth: localStorage.getItem('debug-and-preview-panel-width') ? Number.parseFloat(localStorage.getItem('debug-and-preview-panel-width')!) : 400,
+  setPreviewPanelWidth: width => set(() => ({ previewPanelWidth: width })),
   otherPanelWidth: 400,
   setOtherPanelWidth: width => set(() => ({ otherPanelWidth: width })),
   bottomPanelWidth: 480,
diff --git a/web/app/components/workflow/types.ts b/web/app/components/workflow/types.ts
index c0ca41a5ce..f80ade86c2 100644
--- a/web/app/components/workflow/types.ts
+++ b/web/app/components/workflow/types.ts
@@ -301,7 +301,7 @@ export type Block = {
 
 export type NodeDefault<T> = {
   defaultValue: Partial<T>
-  defaultRunInputData: Record<string, any>
+  defaultRunInputData?: Record<string, any>
   getAvailablePrevNodes: (isChatMode: boolean) => BlockEnum[]
   getAvailableNextNodes: (isChatMode: boolean) => BlockEnum[]
   checkValid: (payload: T, t: any, moreDataForCheckValid?: any) => { isValid: boolean; errorMessage?: string }
diff --git a/web/config/index.ts b/web/config/index.ts
index b2699b2df2..daaed412d0 100644
--- a/web/config/index.ts
+++ b/web/config/index.ts
@@ -273,3 +273,5 @@ export const MAX_TREE_DEPTH = getNumberConfig(process.env.NEXT_PUBLIC_MAX_TREE_D
 export const ENABLE_WEBSITE_JINAREADER = getBooleanConfig(process.env.NEXT_PUBLIC_ENABLE_WEBSITE_JINAREADER, DatasetAttr.DATA_PUBLIC_ENABLE_WEBSITE_JINAREADER, true)
 export const ENABLE_WEBSITE_FIRECRAWL = getBooleanConfig(process.env.NEXT_PUBLIC_ENABLE_WEBSITE_FIRECRAWL, DatasetAttr.DATA_PUBLIC_ENABLE_WEBSITE_FIRECRAWL, true)
 export const ENABLE_WEBSITE_WATERCRAWL = getBooleanConfig(process.env.NEXT_PUBLIC_ENABLE_WEBSITE_WATERCRAWL, DatasetAttr.DATA_PUBLIC_ENABLE_WEBSITE_WATERCRAWL, false)
+
+export const VALUE_SELECTOR_DELIMITER = '@@@'