[Doc] Add 3.3 downgrade warning (backport #49590) (#49597)

Co-authored-by: 絵空事スピリット <[email protected]>
StarRocks · Aug 8, 2024 · c14a8ea · c14a8ea
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diff --git a/docs/en/deployment/downgrade.md b/docs/en/deployment/downgrade.md
@@ -22,6 +22,12 @@ Review the information in this section before downgrading. Perform any recommend
 
   For compatibility and safety reasons, we strongly recommend you downgrade your StarRocks cluster **consecutively from one minor version to another**. For example, to downgrade a StarRocks v2.5 cluster to v2.2, you need to downgrade it in the following order: v2.5.x --> v2.4.x --> v2.3.x --> v2.2.x.
 
+  :::warning
+
+  After upgrading StarRocks to v3.3, DO NOT downgrade it directly to v3.2.0, v3.2.1, or v3.2.2, otherwise it will cause metadata loss. You must downgrade the cluster to v3.2.3 or later to prevent the issue.
+
+  :::
+
 - **For major version downgrade**
 
   You can only downgrade your StarRocks v3.0 cluster to v2.5.3 and later versions.

diff --git a/docs/zh/deployment/downgrade.md b/docs/zh/deployment/downgrade.md
@@ -22,6 +22,12 @@ displayed_sidebar: "Chinese"
 
   出于兼容性和安全原因，我们强烈建议您将 StarRocks 集群按**大版本逐级降级**。例如，要将 StarRocks v2.5 集群降级到 v2.2，需要按照以下顺序降级：v2.5.x --> v2.4.x --> v2.3.x --> v2.2.x。
 
+  :::warning
+
+  升级至 v3.3 后，请勿直接将集群降级至 v3.2.0、v3.2.1 或 v3.2.2，否则会导致元数据丢失。您必须降级到 v3.2.3 或更高版本以避免出现此问题。
+
+  :::
+
 - **重大版本降级**
 
   - 您无法跨版本降级至 v1.19，必须先降级至 v2.0。