diff --git a/src/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md b/src/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md
index eac6ff6b7..32450165f 100644
--- a/src/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md
+++ b/src/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md
@@ -30,6 +30,7 @@ Important notes:
 - The system will eventually remove expired data, but there may be a delay.
 - TTL determines data expiration based on the data point timestamp, not the ingestion time.
 - The system supports setting up to 1000 TTL rules. When the limit is reached, existing rules must be removed before new ones can be added.
+- Supports device-level TTL starting from V1.3.3.
 
 ## Set TTL
 ### TTL Path Rule
diff --git a/src/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md b/src/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md
index eac6ff6b7..32450165f 100644
--- a/src/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md
+++ b/src/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md
@@ -30,6 +30,7 @@ Important notes:
 - The system will eventually remove expired data, but there may be a delay.
 - TTL determines data expiration based on the data point timestamp, not the ingestion time.
 - The system supports setting up to 1000 TTL rules. When the limit is reached, existing rules must be removed before new ones can be added.
+- Supports device-level TTL starting from V1.3.3.
 
 ## Set TTL
 ### TTL Path Rule
diff --git a/src/zh/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md b/src/zh/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md
index fff9d2a10..8e09c8d58 100644
--- a/src/zh/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md
+++ b/src/zh/UserGuide/V1.3.x/Basic-Concept/TTL-Delete.md
@@ -30,6 +30,7 @@ IoTDB 支持对设备（device）级别设置数据保留时间（TTL），允
 - 系统最终会移除过期数据，但存在延迟。
 - TTL 判断数据是否过期依据的是数据点时间，非写入时间。
 - 系统最多支持设置 1000 条 TTL 规则，达到上限需先删除部分规则才能设置新规则。
+- V1.3.3 版本起支持设备级 TTL。
 
 ## 设置TTL
 ### TTL Path 规则
diff --git a/src/zh/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md b/src/zh/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md
index 2f5a90eb5..e59f4b360 100644
--- a/src/zh/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md
+++ b/src/zh/UserGuide/dev-1.3/Basic-Concept/TTL-Delete.md
@@ -30,6 +30,7 @@ IoTDB 支持对设备（device）级别设置数据保留时间（TTL），允
 - 系统最终会移除过期数据，但存在延迟。
 - TTL 判断数据是否过期依据的是数据点时间，非写入时间。
 - 系统最多支持设置 1000 条 TTL 规则，达到上限需先删除部分规则才能设置新规则。
+- V1.3.3 版本起支持设备级 TTL。
 
 ## 设置TTL
 ### TTL Path 规则