diff --git a/blog/breaking-down-data-silos-with-an-apache-doris-based-cdp.md b/blog/breaking-down-data-silos-with-an-apache-doris-based-cdp.md
index 02fc839..2cecae2 100644
--- a/blog/breaking-down-data-silos-with-an-apache-doris-based-cdp.md
+++ b/blog/breaking-down-data-silos-with-an-apache-doris-based-cdp.md
@@ -6,7 +6,7 @@
     'author': 'Apache Doris',
     'tags': ['Best Practice'],
     'picked': "true",
-    'order': "2",
+    'order': "3",
     "image": '/images/breaking-down-data-silos-with-an-apache-doris-based-cdp.png'
 }
 
diff --git a/blog/release-note-2.1.0.md b/blog/release-note-2.1.0.md
index 6ab51cf..3272eef 100644
--- a/blog/release-note-2.1.0.md
+++ b/blog/release-note-2.1.0.md
@@ -5,8 +5,6 @@
     'date': '2024-03-12',
     'author': 'Apache Doris',
     'tags': ['Release Notes'],
-    'picked': "true",
-    'order': "2",
     "image": '/images/2.1.0.png'
 }
 ---
diff --git a/blog/release-note-2.1.1.md b/blog/release-note-2.1.1.md
new file mode 100644
index 0000000..2a1d217
--- /dev/null
+++ b/blog/release-note-2.1.1.md
@@ -0,0 +1,259 @@
+---
+{
+    'title': 'Apache Doris 2.1.1 just released',
+    'summary': 'Dear community, Apache Doris 1.2.3 is now available, with several enhancements and bug fixes based on 2.1.0, enabling smoother user experience.',
+    'date': '2024-04-03',
+    'author': 'Apache Doris',
+    'tags': ['Release Notes'],
+    'picked': "true",
+    'order': "1",
+    "image": '/images/2.1.1.png'
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+
+Dear community members, Apache Doris 2.1.1 has been officially released on April 3, 2024, with several enhancements and bug fixes based on 2.1.0, enabling smoother user experience.
+
+
+- **Quick Download:** [https://doris.apache.org/download/](https://doris.apache.org/download/)
+
+- **GitHub：** [https://github.com/apache/doris/releases](https://github.com/apache/doris/releases)
+
+
+## Behavior Changed
+
+1. Change float type output format to improve float type serialization performance.
+
+   - https://github.com/apache/doris/pull/32049
+
+2. Change system table value functions active_queries(), workload_groups() to system tables. 
+
+   - https://github.com/apache/doris/pull/32314
+
+3. Disable show query/load profile stmt because there are not so many developers use it and the pipeline and pipelinex engine not support it. 
+
+   - https://github.com/apache/doris/pull/32467
+
+4. Upgrade arrow flight version to 15.0.2 to fix some bugs, so that please use ADBC 15.0.2 version to access Doris. 
+
+   - https://github.com/apache/doris/pull/32827.
+
+
+
+## Upgrade Problem
+
+1. BE will core when rolling pgrade problem from 2.0.x to 2.1.x.
+
+   - https://github.com/apache/doris/pull/32672
+
+   - https://github.com/apache/doris/pull/32444
+
+   - https://github.com/apache/doris/pull/32162
+
+2. JDBC Catalog will have query errors when rolling grade rom 2.0.x to 2.1.x. 
+
+   - https://github.com/apache/doris/pull/32618
+
+
+
+## New Feature
+
+1. Enable column auth by default.
+
+   - https://github.com/apache/doris/pull/32659
+
+
+2. Get correct cores for pipeline and pipelinex engine when running within docker or k8s. 
+   
+   - https://github.com/apache/doris/pull/32370
+
+3. Support read parquet int96 type. 
+
+   - https://github.com/apache/doris/pull/32394
+
+4. Enable proxy protocol to support IP transparency. Using this protocol, IP transparency for load balancing can be achieved, so that after load balancing, Doris can still obtain the client's real IP and implement permission control such as whitelisting. 
+
+   - https://github.com/apache/doris/pull/32338/files
+
+5. Add workload group queue related columns for active_queries system table. Uses could use this system to monitor the workload queue usage. 
+
+   - https://github.com/apache/doris/pull/32259
+
+6. Add new system table backend_active_tasks to monitor the realtime query statics on every BE. 
+
+   - https://github.com/apache/doris/pull/31945
+
+7. Add ipv4 and ipv6 support for spark-doris connector. 
+
+   - https://github.com/apache/doris/pull/32240
+
+8. Add inverted index support for CCR. 
+
+   - https://github.com/apache/doris/pull/32101
+
+9. Support select experimental session variable. 
+
+   - https://github.com/apache/doris/pull/31837
+
+10. Support materialized view with bitmap_union(bitmap_from_array()) case. 
+
+    - https://github.com/apache/doris/pull/31962
+
+11. Support partition prune for `HIVE_DEFAULT_PARTITION`. 
+
+    - https://github.com/apache/doris/pull/31736
+
+12. Support function in set variable statement. 
+
+    - https://github.com/apache/doris/pull/32492
+
+13. Support arrow serialization for varint type. 
+
+    - https://github.com/apache/doris/pull/32809
+
+
+
+## Optimization
+
+1. Auto resume routine load when be restart or during upgrade. And keep the routine load stable. 
+
+   - https://github.com/apache/doris/pull/32239
+
+2. Routine Load: optimize allocate task to be algorithm for load balance. 
+
+   - https://github.com/apache/doris/pull/32021
+
+3. Spark Load: update spark version for spark load to resolve cve problem. 
+
+   - https://github.com/apache/doris/pull/30368
+
+4. Skip cooldown if the tablet is dropped. 
+
+   - https://github.com/apache/doris/pull/32079
+
+5. Support using workload group to manage routine load. 
+
+   - https://github.com/apache/doris/pull/31671
+
+6. [MTMV ]Improve the performance for query rewritting by materialized view. 
+
+   - https://github.com/apache/doris/pull/31886
+
+7. Reduce jvm heap memory consumed by profiles of BrokerLoadJob. 
+
+   - https://github.com/apache/doris/pull/31985
+
+8. Imporve the high QPS query by speed up PartitionPrunner. 
+
+   - https://github.com/apache/doris/pull/31970
+
+9. Reduce duplicated memory consumption for column name and column path for schema cache. 
+
+   - https://github.com/apache/doris/pull/31141
+
+10. Support more join types for query rewriting by materialized view such as INNER JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, FULL OUTER JOIN, LEFT SEMI JOIN, RIGHT SEMI JOIN, LEFT ANTI JOIN, RIGHT ANTI JOIN.
+
+    - https://github.com/apache/doris/pull/32909
+
+
+
+## Bugfix
+
+
+1. Do not push down topn-filter through right/full outer join if the first orderkey is nulls first. 
+
+   - https://github.com/apache/doris/pull/32633
+
+2. Fix memory leak in Java UDF.
+
+   - https://github.com/apache/doris/pull/32630
+
+3. If some odbc tables use the same resource, and restore not all odbc tables, it will not retain the resource.
+   and check some conf for backup/restore 
+
+   - https://github.com/apache/doris/pull/31989
+
+4. Fold constant will core for variant type. 
+
+   - https://github.com/apache/doris/pull/32265
+
+5. Routine load will pause when transaction fail in some cases. 
+
+   - https://github.com/apache/doris/pull/32638
+
+6. the result of left semi join with empty right side should be false instead of null. 
+
+   - https://github.com/apache/doris/pull/32477
+
+7. Fix core when build inverted index for a new column with no data. 
+
+   - https://github.com/apache/doris/pull/32669
+
+8. Fix be core caused by null-safe-equal join. 
+
+   - https://github.com/apache/doris/pull/32623
+
+9. Partial update: fix data correctness risk when load delete sign data into a table with sequence col. 
+
+   - https://github.com/apache/doris/pull/32574
+
+10. Select outfile: Fix the column type mapping in the orc/parquet file format. 
+
+    - https://github.com/apache/doris/pull/32281
+
+11. Fix BE core during restore stage. 
+
+    - https://github.com/apache/doris/pull/32489
+
+12. Use array_agg func after other agg func like count, sum, may make be core. 
+
+    - https://github.com/apache/doris/pull/32387
+
+13. Variant type should always nullable or there will some bugs. 
+
+    - https://github.com/apache/doris/pull/32248
+
+14. Fix the bug of handling empty blocks in schema change. 
+
+    - https://github.com/apache/doris/pull/32396
+
+15. Fix BE will core when use json_length() in some cases. 
+
+    - https://github.com/apache/doris/pull/32145
+
+16. Fix error when query iceberg table using date cast predicate 
+
+    - https://github.com/apache/doris/pull/32194
+
+17. Fix some bugs when build inverted index for variant type. 
+
+    - https://github.com/apache/doris/pull/31992
+
+18. Wrong result of two or more map_agg functions in query. 
+
+    - https://github.com/apache/doris/pull/31928
+
+19. Fix wrong result of money_format function. 
+
+    - https://github.com/apache/doris/pull/31883
+
+20. Fix connection hang after too many connections. 
+
+    - https://github.com/apache/doris/pull/31594
\ No newline at end of file
diff --git a/blog/variant-in-apache-doris-2.1.md b/blog/variant-in-apache-doris-2.1.md
index 93892a4..c741cbd 100644
--- a/blog/variant-in-apache-doris-2.1.md
+++ b/blog/variant-in-apache-doris-2.1.md
@@ -6,7 +6,7 @@
     'author': 'Apache Doris',
     'tags': ['Tech Sharing'],
     'picked': "true",
-    'order': "1",
+    'order': "2",
     "image": '/images/variant-in-apache-doris-2.1.png'
 }
 ---
diff --git a/docs/releasenotes/release-2.1.1.md b/docs/releasenotes/release-2.1.1.md
new file mode 100644
index 0000000..c91d18f
--- /dev/null
+++ b/docs/releasenotes/release-2.1.1.md
@@ -0,0 +1,251 @@
+---
+{
+    "title": "Release 2.1.1",
+    "language": "en"
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+Dear community members, Apache Doris 2.1.1 has been officially released on April 3, 2024, with several enhancements and bug fixes based on 2.1.0, enabling smoother user experience.
+
+- **Quick Download:** [https://doris.apache.org/download/](https://doris.apache.org/download/)
+
+- **GitHub：** [https://github.com/apache/doris/releases](https://github.com/apache/doris/releases)
+
+## Behavior Changed
+
+1. Change float type output format to improve float type serialization performance.
+
+   - https://github.com/apache/doris/pull/32049
+
+2. Change system table value functions active_queries(), workload_groups() to system tables. 
+
+   - https://github.com/apache/doris/pull/32314
+
+3. Disable show query/load profile stmt because there are not so many developers use it and the pipeline and pipelinex engine not support it. 
+
+   - https://github.com/apache/doris/pull/32467
+
+4. Upgrade arrow flight version to 15.0.2 to fix some bugs, so that please use ADBC 15.0.2 version to access Doris. 
+
+   - https://github.com/apache/doris/pull/32827.
+
+
+
+## Upgrade Problem
+
+1. BE will core when rolling pgrade problem from 2.0.x to 2.1.x 
+
+   - https://github.com/apache/doris/pull/32672
+
+   - https://github.com/apache/doris/pull/32444
+
+   - https://github.com/apache/doris/pull/32162
+
+2. JDBC Catalog will have query errors when rolling grade rom 2.0.x to 2.1.x. 
+
+   - https://github.com/apache/doris/pull/32618
+
+
+
+## New Feature
+
+1. Enable column auth by default.
+
+   - https://github.com/apache/doris/pull/32659
+
+
+2. Get correct cores for pipeline and pipelinex engine when running within docker or k8s. 
+   
+   - https://github.com/apache/doris/pull/32370
+
+3. Support read parquet int96 type. 
+
+   - https://github.com/apache/doris/pull/32394
+
+4. Enable proxy protocol to support IP transparency. Using this protocol, IP transparency for load balancing can be achieved, so that after load balancing, Doris can still obtain the client's real IP and implement permission control such as whitelisting. 
+
+   - https://github.com/apache/doris/pull/32338/files
+
+5. Add workload group queue related columns for active_queries system table. Uses could use this system to monitor the workload queue usage. 
+
+   - https://github.com/apache/doris/pull/32259
+
+6. Add new system table backend_active_tasks to monitor the realtime query statics on every BE. 
+
+   - https://github.com/apache/doris/pull/31945
+
+7. Add ipv4 and ipv6 support for spark-doris connector. 
+
+   - https://github.com/apache/doris/pull/32240
+
+8. Add inverted index support for CCR. 
+
+   - https://github.com/apache/doris/pull/32101
+
+9. Support select experimental session variable. 
+
+   - https://github.com/apache/doris/pull/31837
+
+10. Support materialized view with bitmap_union(bitmap_from_array()) case. 
+
+    - https://github.com/apache/doris/pull/31962
+
+11. Support partition prune for *HIVE_DEFAULT_PARTITION*. 
+
+    - https://github.com/apache/doris/pull/31736
+
+12. Support function in set variable statement. 
+
+    - https://github.com/apache/doris/pull/32492
+
+13. Support arrow serialization for varint type. 
+
+    - https://github.com/apache/doris/pull/32809
+
+
+
+## Optimization
+
+1. Auto resume routine load when be restart or during upgrade. And keep the routine load stable. 
+
+   - https://github.com/apache/doris/pull/32239
+
+2. Routine Load: optimize allocate task to be algorithm for load balance. 
+
+   - https://github.com/apache/doris/pull/32021
+
+3. Spark Load: update spark version for spark load to resolve cve problem. 
+
+   - https://github.com/apache/doris/pull/30368
+
+4. Skip cooldown if the tablet is dropped. 
+
+   - https://github.com/apache/doris/pull/32079
+
+5. Support using workload group to manage routine load. 
+
+   - https://github.com/apache/doris/pull/31671
+
+6. [MTMV ]Improve the performance for query rewritting by materialized view. 
+
+   - https://github.com/apache/doris/pull/31886
+
+7. Reduce jvm heap memory consumed by profiles of BrokerLoadJob. 
+
+   - https://github.com/apache/doris/pull/31985
+8. Imporve the high QPS query by speed up PartitionPrunner. 
+
+   - https://github.com/apache/doris/pull/31970
+
+9. Reduce duplicated memory consumption for column name and column path for schema cache. 
+
+   - https://github.com/apache/doris/pull/31141
+
+10. Support more join types for query rewriting by materialized view such as INNER JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, FULL OUTER JOIN, LEFT SEMI JOIN, RIGHT SEMI JOIN, LEFT ANTI JOIN, RIGHT ANTI JOIN 
+
+    - https://github.com/apache/doris/pull/32909
+
+
+
+## Bugfix
+
+
+1. Do not push down topn-filter through right/full outer join if the first orderkey is nulls first. 
+
+   - https://github.com/apache/doris/pull/32633
+
+2. Fix memory leak in Java UDF 
+
+   - https://github.com/apache/doris/pull/32630
+
+3. If some odbc tables use the same resource, and restore not all odbc tables, it will not retain the resource.
+   and check some conf for backup/restore 
+
+   - https://github.com/apache/doris/pull/31989
+
+4. Fold constant will core for variant type. 
+
+   - https://github.com/apache/doris/pull/32265
+
+5. Routine load will pause when transaction fail in some cases. 
+
+   - https://github.com/apache/doris/pull/32638
+
+6. the result of left semi join with empty right side should be false instead of null. 
+
+   - https://github.com/apache/doris/pull/32477
+
+7. Fix core when build inverted index for a new column with no data. 
+
+   - https://github.com/apache/doris/pull/32669
+
+8. Fix be core caused by null-safe-equal join. 
+
+   - https://github.com/apache/doris/pull/32623
+
+9. Partial update: fix data correctness risk when load delete sign data into a table with sequence col. 
+
+   - https://github.com/apache/doris/pull/32574
+
+10. Select outfile: Fix the column type mapping in the orc/parquet file format. 
+
+    - https://github.com/apache/doris/pull/32281
+
+11. Fix BE core during restore stage. 
+
+    - https://github.com/apache/doris/pull/32489
+
+12. Use array_agg func after other agg func like count, sum, may make be core. 
+
+    - https://github.com/apache/doris/pull/32387
+
+13. Variant type should always nullable or there will some bugs. 
+
+    - https://github.com/apache/doris/pull/32248
+
+14. Fix the bug of handling empty blocks in schema change. 
+
+    - https://github.com/apache/doris/pull/32396
+
+15. Fix BE will core when use json_length() in some cases. 
+
+    - https://github.com/apache/doris/pull/32145
+
+16. Fix error when query iceberg table using date cast predicate 
+
+    - https://github.com/apache/doris/pull/32194
+
+17. Fix some bugs when build inverted index for variant type. 
+
+    - https://github.com/apache/doris/pull/31992
+
+18. Wrong result of two or more map_agg functions in query. 
+
+    - https://github.com/apache/doris/pull/31928
+
+19. Fix wrong result of money_format function. 
+
+    - https://github.com/apache/doris/pull/31883
+
+20. Fix connection hang after too many connections. 
+
+    - https://github.com/apache/doris/pull/31594
\ No newline at end of file
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/releasenotes/release-2.1.1.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/releasenotes/release-2.1.1.md
new file mode 100644
index 0000000..2923c98
--- /dev/null
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/releasenotes/release-2.1.1.md
@@ -0,0 +1,245 @@
+---
+{
+    "title": "Release 2.1.1",
+    "language": "zh-CN"
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+
+亲爱的社区小伙伴们，Apache Doris 2.1.1 版本已于 2024 年 4 月 3 日正式发布。该版本针对 2.1.0 版本出现的问题进行较为全面的优化，提交了若干改进项以及问题修复，进一步提升了系统的性能及稳定性，欢迎大家下载体验。
+
+立即下载
+- https://doris.apache.org/download/
+
+GitHub Release
+- https://github.com/apache/doris/releases
+
+
+## 1 行为变更
+
+1. 改变了 Float 类型字段返回值序列化的方式，可以提升大数据量下 Float 返回的性能。
+   
+   - https://github.com/apache/doris/pull/32049 
+
+2. 将部分 Table Valued Function 变更为系统表 `active_queries()`, `workload_groups()`。
+   
+   - https://github.com/apache/doris/pull/32314 
+
+3. 由于 `show query``/l``oad profile stmt` 语句在实际用户场景中使用较少，该语句将不再支持与维护。同时该功能在 Pipeline 与 PipelineX 引擎中不支持。
+
+   - https://github.com/apache/doris/pull/32467
+
+4. 升级 Arrow Flight 版本至 15.0.2，同时用户需要使用 ADBC 15.0.2 版本访问 Doris。
+   
+   - https://github.com/apache/doris/pull/32827.  
+
+## 2 升级问题
+
+1. 修复了从 2.0.x 滚动升级至 2.1.x 的过程中，部分 BE 节点升级出现 Core 的问题。
+   
+   - https://github.com/apache/doris/pull/32672
+   
+   - https://github.com/apache/doris/pull/32444 
+   
+   - https://github.com/apache/doris/pull/32162 
+
+2. 修复了在 2.0.x 滚动升级至 2.1.x 过程中，使用 JDBC Catalog 会出现 Query 报错的问题。
+
+   - https://github.com/apache/doris/pull/32618
+
+## 3 新功能
+
+1. 默认开启列级权限。
+   
+   - https://github.com/apache/doris/pull/32659
+
+2. Pipeline 和 PipelineX 引擎能够在 K8S 下准确获取 CPU 核数。
+
+   - https://github.com/apache/doris/pull/32370 
+
+3. 支持读取 Parquet INT96 类型
+   
+   - https://github.com/apache/doris/pull/32394 
+
+4. 支持 IP 透传的协议，以方便在 FE 之前启用代理的同时还能获取客户端准确的 IP 地址，实现白名单权限控制。
+
+   - https://github.com/apache/doris/pull/32338/files 
+
+5. 增加对 Workload Queue 检测指标。
+
+   - https://github.com/apache/doris/pull/32259 
+
+6. 增加系统表 `backend_active_tasks `，以实时监测每个 BE 上活跃任务以及消耗的资源信息。
+
+   - https://github.com/apache/doris/pull/31945 
+
+7. 在 Spark Doris Connector 中增加 IPV4 和 IPV6 的支持。
+
+   - https://github.com/apache/doris/pull/32240
+
+8. CCR 支持倒排索引。
+
+   - https://github.com/apache/doris/pull/32101 
+
+9. 支持查询 Experimental 的 Session Variable。  
+
+   - https://github.com/apache/doris/pull/31837
+
+10. 支持建立 `bitmap_union(bitmap_from_array())` 函数的物化视图。
+
+    -https://github.com/apache/doris/pull/31962
+
+11. 支持对 Hive 中 `HIVE_DEFAULT_PARTITION` 分区进行列裁剪。
+
+    - https://github.com/apache/doris/pull/31736 
+
+12. 支持 `set variable` 语句中使用函数。
+
+    - https://github.com/apache/doris/pull/32492
+
+13. Arrow 序列化方式增加对 Variant 类型的支持。
+
+    - https://github.com/apache/doris/pull/32809
+
+## 4 改进与优化 
+
+1. 当系统自动重启或者滚动升级之后，自动启动 Routine Load 导入任务。
+
+   - https://github.com/apache/doris/pull/32239  
+
+2. 优化了 Routine Load 任务在各个 BE 上的分布方式，让各个 BE 负载更加均衡。
+
+   - https://github.com/apache/doris/pull/32021 
+
+3. 升级 Spark 的版本，解决部分 Spark Load 的安全问题。
+
+   - https://github.com/apache/doris/pull/30368
+
+4. 在冷热分离过程中，自动跳过被删除的 Tablet. 
+
+   - https://github.com/apache/doris/pull/32079
+
+5. Workload Group 支持对 Routine Load 的资源进行限制。
+
+   - https://github.com/apache/doris/pull/31671
+
+6. 大幅度优化多表物化视图查询改写性能。
+
+   - https://github.com/apache/doris/pull/31886
+
+7. 优化 Broker Load 任务对 FE 的内存使用
+
+   - https://github.com/apache/doris/pull/31985
+
+8. 优化 Partition 的裁剪逻辑。
+
+   - https://github.com/apache/doris/pull/31970 
+
+9. 优化 Tablet Schema Cache 对 BE 内存使用。
+
+   - https://github.com/apache/doris/pull/31141
+
+10. 多表物化视图增加更多对 JOIN 类型的支持，包括 INNER JOIN、LEFT OUTER JOIN、RIGHT OUTER JOIN、FULL OUTER JOIN、LEFT SEMI JOIN、RIGHT SEMI JOIN、LEFT ANTI JOIN、RIGHT ANTI JOIN 
+
+    - https://github.com/apache/doris/pull/32909 
+
+## 5 Bugs 修复
+
+1. 修复 TopN 下推导致的问题。
+
+   - https://github.com/apache/doris/pull/326332.
+
+2. 修复 JAVA UDF 带来的内存泄露问题。
+
+   - https://github.com/apache/doris/pull/32630
+
+3. 修复 ODBC 表备份恢复问题。 
+
+   - https://github.com/apache/doris/pull/31989
+
+4. 修复对 Variant 类型进行运算时常量折叠会导致 BE 出错的问题
+
+   - https://github.com/apache/doris/pull/32265
+
+5. 修复了部分导入任务失败时 Routine Load 卡住的问题。
+
+   - https://github.com/apache/doris/pull/32638
+
+6. 修复 SEMI JOIN 结果不正确的问题。
+
+   - https://github.com/apache/doris/pull/32477 
+
+7. 当列的数据为空时，修复建立倒排索引会出错的问题。 
+
+   - https://github.com/apache/doris/pull/32669 
+
+8. 修复`<=> join` 操作会出现 Core 的问题。
+
+   - https://github.com/apache/doris/pull/32623 
+
+9. 修复部分列更新在有 Sequence 列结果准确性的问题。
+
+   - https://github.com/apache/doris/pull/32574
+
+10. 修复 Select Outfile 导出到 Parquet 或者 ORC 格式的列类型映射问题。
+
+    - https://github.com/apache/doris/pull/32281 
+
+11. 修复在 Restore 过程中 BE 有时候会 Core 的问题。
+
+    - https://github.com/apache/doris/pull/32489
+
+12. 修复 `array_agg `函数结果不对的问题。
+
+    - https://github.com/apache/doris/pull/32387 
+
+13. 使 Variant 类型应当一直是 nullable. 
+
+    - https://github.com/apache/doris/pull/32248
+
+14. 修复 Schema Change 没有正确处理空 Block 的问题。
+
+    - https://github.com/apache/doris/pull/32396
+
+15. 修复使用 `json_length()` 函数时部分场景会出错的问题。
+
+    - https://github.com/apache/doris/pull/32145 
+
+16. 修复 Iceberg 表没有正确处理 Date Cast 转换的问题。
+
+    - https://github.com/apache/doris/pull/32194 
+
+17. 修复 Variant 类型建立 Index 时出现的部分 Bug。
+
+    - https://github.com/apache/doris/pull/31992 
+
+18. 修复当多个 `map_agg` 函数同时使用时结果不正确的问题。
+
+    - https://github.com/apache/doris/pull/31928
+
+19. 修复 `money_format` 函数的返回结果不正确的问题。
+
+    - https://github.com/apache/doris/pull/31883 
+
+20. 修复在高并发的建立链接时部分请求会卡住的问题。
+
+    - https://github.com/apache/doris/pull/31594
\ No newline at end of file
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/releasenotes/release-2.1.1.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/releasenotes/release-2.1.1.md
new file mode 100644
index 0000000..2356b89
--- /dev/null
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/releasenotes/release-2.1.1.md
@@ -0,0 +1,244 @@
+---
+{
+    "title": "Release 2.1.1",
+    "language": "zh-CN"
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+亲爱的社区小伙伴们，Apache Doris 2.1.1 版本已于 2024 年 4 月 3 日正式发布。该版本针对 2.1.0 版本出现的问题进行较为全面的优化，提交了若干改进项以及问题修复，进一步提升了系统的性能及稳定性，欢迎大家下载体验。
+
+立即下载
+- https://doris.apache.org/download/
+
+GitHub Release
+- https://github.com/apache/doris/releases
+
+
+## 1 行为变更
+
+1. 改变了 Float 类型字段返回值序列化的方式，可以提升大数据量下 Float 返回的性能。
+   
+   - https://github.com/apache/doris/pull/32049 
+
+2. 将部分 Table Valued Function 变更为系统表 `active_queries()`, `workload_groups()`。
+   
+   - https://github.com/apache/doris/pull/32314 
+
+3. 由于 `show query``/l``oad profile stmt` 语句在实际用户场景中使用较少，该语句将不再支持与维护。同时该功能在 Pipeline 与 PipelineX 引擎中不支持。
+
+   - https://github.com/apache/doris/pull/32467
+
+4. 升级 Arrow Flight 版本至 15.0.2，同时用户需要使用 ADBC 15.0.2 版本访问 Doris。
+   
+   - https://github.com/apache/doris/pull/32827.  
+
+## 2 升级问题
+
+1. 修复了从 2.0.x 滚动升级至 2.1.x 的过程中，部分 BE 节点升级出现 Core 的问题。
+   
+   - https://github.com/apache/doris/pull/32672
+   
+   - https://github.com/apache/doris/pull/32444 
+   
+   - https://github.com/apache/doris/pull/32162 
+
+2. 修复了在 2.0.x 滚动升级至 2.1.x 过程中，使用 JDBC Catalog 会出现 Query 报错的问题。
+
+   - https://github.com/apache/doris/pull/32618
+
+## 3 新功能
+
+1. 默认开启列级权限。
+   
+   - https://github.com/apache/doris/pull/32659
+
+2. Pipeline 和 PipelineX 引擎能够在 K8S 下准确获取 CPU 核数。
+
+   - https://github.com/apache/doris/pull/32370 
+
+3. 支持读取 Parquet INT96 类型
+   
+   - https://github.com/apache/doris/pull/32394 
+
+4. 支持 IP 透传的协议，以方便在 FE 之前启用代理的同时还能获取客户端准确的 IP 地址，实现白名单权限控制。
+
+   - https://github.com/apache/doris/pull/32338/files 
+
+5. 增加对 Workload Queue 检测指标。
+
+   - https://github.com/apache/doris/pull/32259 
+
+6. 增加系统表 `backend_active_tasks `，以实时监测每个 BE 上活跃任务以及消耗的资源信息。
+
+   - https://github.com/apache/doris/pull/31945 
+
+7. 在 Spark Doris Connector 中增加 IPV4 和 IPV6 的支持。
+
+   - https://github.com/apache/doris/pull/32240
+
+8. CCR 支持倒排索引。
+
+   - https://github.com/apache/doris/pull/32101 
+
+9. 支持查询 Experimental 的 Session Variable。 
+
+   - https://github.com/apache/doris/pull/31837
+
+10. 支持建立 `bitmap_union(bitmap_from_array())` 函数的物化视图。
+
+    -https://github.com/apache/doris/pull/31962
+
+11. 支持对 Hive 中 `HIVE_DEFAULT_PARTITION` 分区进行列裁剪。
+
+    - https://github.com/apache/doris/pull/31736 
+
+12. 支持 `set variable` 语句中使用函数。
+
+    - https://github.com/apache/doris/pull/32492
+
+13. Arrow 序列化方式增加对 Variant 类型的支持。
+
+    - https://github.com/apache/doris/pull/32809
+
+## 4 改进与优化 
+
+1. 当系统自动重启或者滚动升级之后，自动启动 Routine Load 导入任务。
+
+   - https://github.com/apache/doris/pull/32239  
+
+2. 优化了 Routine Load 任务在各个 BE 上的分布方式，让各个 BE 负载更加均衡。
+
+   - https://github.com/apache/doris/pull/32021 
+
+3. 升级 Spark 的版本，解决部分 Spark Load 的安全问题。
+
+   - https://github.com/apache/doris/pull/30368
+
+4. 在冷热分离过程中，自动跳过被删除的 Tablet. 
+
+   - https://github.com/apache/doris/pull/32079
+
+5. Workload Group 支持对 Routine Load 的资源进行限制。
+
+   - https://github.com/apache/doris/pull/31671
+
+6. 大幅度优化多表物化视图查询改写性能。
+
+   - https://github.com/apache/doris/pull/31886
+
+7. 优化 Broker Load 任务对 FE 的内存使用
+
+   - https://github.com/apache/doris/pull/31985
+
+8. 优化 Partition 的裁剪逻辑。
+
+   - https://github.com/apache/doris/pull/31970 
+
+9. 优化 Tablet Schema Cache 对 BE 内存使用。
+
+   - https://github.com/apache/doris/pull/31141
+
+10. 多表物化视图增加更多对 JOIN 类型的支持，包括 INNER JOIN、LEFT OUTER JOIN、RIGHT OUTER JOIN、FULL OUTER JOIN、LEFT SEMI JOIN、RIGHT SEMI JOIN、LEFT ANTI JOIN、RIGHT ANTI JOIN 
+
+    - https://github.com/apache/doris/pull/32909 
+
+## 5 Bugs 修复
+
+1. 修复 TopN 下推导致的问题。
+
+   - https://github.com/apache/doris/pull/326332.
+
+2. 修复 JAVA UDF 带来的内存泄露问题。
+
+   - https://github.com/apache/doris/pull/32630
+
+3. 修复 ODBC 表备份恢复问题。 
+
+   - https://github.com/apache/doris/pull/31989
+
+4. 修复对 Variant 类型进行运算时常量折叠会导致 BE 出错的问题
+
+   - https://github.com/apache/doris/pull/32265
+
+5. 修复了部分导入任务失败时 Routine Load 卡住的问题。
+
+   - https://github.com/apache/doris/pull/32638
+
+6. 修复 SEMI JOIN 结果不正确的问题。
+
+   - https://github.com/apache/doris/pull/32477 
+
+7. 当列的数据为空时，修复建立倒排索引会出错的问题。 
+
+   - https://github.com/apache/doris/pull/32669 
+
+8. 修复`<=> join` 操作会出现 Core 的问题。
+
+   - https://github.com/apache/doris/pull/32623 
+
+9. 修复部分列更新在有 Sequence 列结果准确性的问题。
+
+   - https://github.com/apache/doris/pull/32574
+
+10. 修复 Select Outfile 导出到 Parquet 或者 ORC 格式的列类型映射问题。
+
+    - https://github.com/apache/doris/pull/32281 
+
+11. 修复在 Restore 过程中 BE 有时候会 Core 的问题。
+
+    - https://github.com/apache/doris/pull/32489
+
+12. 修复 `array_agg `函数结果不对的问题。
+
+    - https://github.com/apache/doris/pull/32387 
+
+13. 使 Variant 类型应当一直是 nullable. 
+
+    - https://github.com/apache/doris/pull/32248
+
+14. 修复 Schema Change 没有正确处理空 Block 的问题。
+
+    - https://github.com/apache/doris/pull/32396
+
+15. 修复使用 `json_length()` 函数时部分场景会出错的问题。
+
+    - https://github.com/apache/doris/pull/32145 
+
+16. 修复 Iceberg 表没有正确处理 Date Cast 转换的问题。
+
+    - https://github.com/apache/doris/pull/32194 
+
+17. 修复 Variant 类型建立 Index 时出现的部分 Bug。
+
+    - https://github.com/apache/doris/pull/31992 
+
+18. 修复当多个 `map_agg` 函数同时使用时结果不正确的问题。
+
+    - https://github.com/apache/doris/pull/31928
+
+19. 修复 `money_format` 函数的返回结果不正确的问题。
+
+    - https://github.com/apache/doris/pull/31883 
+
+20. 修复在高并发的建立链接时部分请求会卡住的问题。
+
+    - https://github.com/apache/doris/pull/31594
\ No newline at end of file
diff --git a/sidebars.json b/sidebars.json
index 0cbd9b5..9c68394 100644
--- a/sidebars.json
+++ b/sidebars.json
@@ -1459,6 +1459,7 @@
             "type": "category",
             "label": "Release notes",
             "items": [
+                "releasenotes/release-2.1.1",
                 "releasenotes/release-2.1.0",
                 "releasenotes/release-2.0.7",
                 "releasenotes/release-2.0.6",
diff --git a/src/constant/download.data.ts b/src/constant/download.data.ts
index fdea033..9943379 100644
--- a/src/constant/download.data.ts
+++ b/src/constant/download.data.ts
@@ -30,7 +30,7 @@
 
 export const ORIGIN = 'https://apache-doris-releases.oss-accelerate.aliyuncs.com/';
 export enum VersionEnum {
-    Latest = '2.1.0',
+    Latest = '2.1.1',
     Prev = '2.0.7',
     // Earlier = '1.1.5',
 }
@@ -40,35 +40,35 @@
 }
 export const DORIS_VERSIONS: Option[] = [
     {
-        label: '2.1.0',
-        value: '2.1.0',
+        label: '2.1.1',
+        value: '2.1.1',
         majorVersion: '2.1',
         children: [
             {
                 label: CPUEnum.X64,
                 value: CPUEnum.X64,
-                gz: `${ORIGIN}apache-doris-2.1.0-bin-x64.tar.gz`,
-                asc: `${ORIGIN}apache-doris-2.1.0-bin-x64.tar.gz.asc`,
-                sha512: `${ORIGIN}apache-doris-2.1.0-bin-x64.tar.gz.sha512`,
-                source: 'https://downloads.apache.org/doris/2.1/2.1.0/',
+                gz: `${ORIGIN}apache-doris-2.1.1-bin-x64.tar.gz`,
+                asc: `${ORIGIN}apache-doris-2.1.1-bin-x64.tar.gz.asc`,
+                sha512: `${ORIGIN}apache-doris-2.1.1-bin-x64.tar.gz.sha512`,
+                source: 'https://downloads.apache.org/doris/2.1/2.1.1/',
                 version: '2.1.0',
             },
             {
                 label: CPUEnum.X64NoAvx2,
                 value: CPUEnum.X64NoAvx2,
-                gz: `${ORIGIN}apache-doris-2.1.0-bin-x64-noavx2.tar.gz`,
-                asc: `${ORIGIN}apache-doris-2.1.0-bin-x64-noavx2.tar.gz.asc`,
-                sha512: `${ORIGIN}apache-doris-2.1.0-bin-x64-noavx2.tar.gz.sha512`,
-                source: 'https://downloads.apache.org/doris/2.1/2.1.0/',
+                gz: `${ORIGIN}apache-doris-2.1.1-bin-x64-noavx2.tar.gz`,
+                asc: `${ORIGIN}apache-doris-2.1.1-bin-x64-noavx2.tar.gz.asc`,
+                sha512: `${ORIGIN}apache-doris-2.1.1-bin-x64-noavx2.tar.gz.sha512`,
+                source: 'https://downloads.apache.org/doris/2.1/2.1.1/',
                 version: '2.1.0',
             },
             {
                 label: CPUEnum.ARM64,
                 value: CPUEnum.ARM64,
-                gz: `${ORIGIN}apache-doris-2.1.0-bin-arm64.tar.gz`,
-                asc: `${ORIGIN}apache-doris-2.1.0-bin-arm64.tar.gz.asc`,
-                sha512: `${ORIGIN}apache-doris-2.1.0-bin-arm64.tar.gz.sha512`,
-                source: 'https://downloads.apache.org/doris/2.1/2.1.0/',
+                gz: `${ORIGIN}apache-doris-2.1.1-bin-arm64.tar.gz`,
+                asc: `${ORIGIN}apache-doris-2.1.1-bin-arm64.tar.gz.asc`,
+                sha512: `${ORIGIN}apache-doris-2.1.1-bin-arm64.tar.gz.sha512`,
+                source: 'https://downloads.apache.org/doris/2.1/2.1.1/',
                 version: '2.1.0',
             },
         ],
@@ -126,6 +126,40 @@
         value: '2.1',
         children: [
             {
+                label: '2.1.1',
+                value: '2.1.1',
+                majorVersion: '2.1',
+                items: [
+                    {
+                        label: CPUEnum.X64,
+                        value: CPUEnum.X64,
+                        gz: `${ORIGIN}apache-doris-2.1.1-bin-x64.tar.gz`,
+                        asc: `${ORIGIN}apache-doris-2.1.1-bin-x64.tar.gz.asc`,
+                        sha512: `${ORIGIN}apache-doris-2.1.1-bin-x64.tar.gz.sha512`,
+                        source: 'https://downloads.apache.org/doris/2.1/2.1.1/',
+                        version: '2.1.0',
+                    },
+                    {
+                        label: CPUEnum.X64NoAvx2,
+                        value: CPUEnum.X64NoAvx2,
+                        gz: `${ORIGIN}apache-doris-2.1.1-bin-x64-noavx2.tar.gz`,
+                        asc: `${ORIGIN}apache-doris-2.1.1-bin-x64-noavx2.tar.gz.asc`,
+                        sha512: `${ORIGIN}apache-doris-2.1.1-bin-x64-noavx2.tar.gz.sha512`,
+                        source: 'https://downloads.apache.org/doris/2.1/2.1.1/',
+                        version: '2.1.0',
+                    },
+                    {
+                        label: CPUEnum.ARM64,
+                        value: CPUEnum.ARM64,
+                        gz: `${ORIGIN}apache-doris-2.1.1-bin-arm64.tar.gz`,
+                        asc: `${ORIGIN}apache-doris-2.1.1-bin-arm64.tar.gz.asc`,
+                        sha512: `${ORIGIN}apache-doris-2.1.1-bin-arm64.tar.gz.sha512`,
+                        source: 'https://downloads.apache.org/doris/2.1/2.1.1/',
+                        version: '2.1.1',
+                    },
+                ],
+            },
+            {
                 label: '2.1.0',
                 value: '2.1.0',
                 majorVersion: '2.1',
diff --git a/static/images/2.1.1.png b/static/images/2.1.1.png
new file mode 100644
index 0000000..9ae8ac1
--- /dev/null
+++ b/static/images/2.1.1.png
Binary files differ
diff --git a/versioned_docs/version-2.1/releasenotes/release-2.1.0.md b/versioned_docs/version-2.1/releasenotes/release-2.1.0.md
index 95b8435..dfc97eb 100644
--- a/versioned_docs/version-2.1/releasenotes/release-2.1.0.md
+++ b/versioned_docs/version-2.1/releasenotes/release-2.1.0.md
@@ -28,7 +28,7 @@
 
 With Doris 2.1.0, our primary focus has been on optimizing analysis performance, and the results speak for themselves. We have achieved an impressive performance improvement of over 100% on the TPC-DS 1TB test dataset, making Apache Doris more capable of challenging real-world business scenarios.
 
-- **Quick Download：** [https://doris.apache.org/download/](https://doris.apache.org/download/)
+- **Quick Download:** [https://doris.apache.org/download/](https://doris.apache.org/download/)
 
 - **GitHub：** [https://github.com/apache/doris/releases](https://github.com/apache/doris/releases)
 
@@ -156,4 +156,4 @@
 ## Credits
 Thanks all who contribute to this release:  
 
-467887319、924060929、acnot、airborne12、AKIRA、alan_rodriguez、AlexYue、allenhooo、amory、amory、AshinGau、beat4ocean、BePPPower、bigben0204、bingquanzhao、BirdAmosBird、BiteTheDDDDt、bobhan1、caiconghui、camby、camby、CanGuan、caoliang-web、catpineapple、Centurybbx、chen、ChengDaqi2023、ChenyangSunChenyang、Chester、ChinaYiGuan、ChouGavinChou、chunping、colagy、CSTGluigi、czzmmc、daidai、dalong、dataroaring、DeadlineFen、DeadlineFen、deadlinefen、deardeng、didiaode18、DongLiang-0、dong-shuai、Doris-Extras、Dragonliu2018、DrogonJackDrogon、DuanXujianDuan、DuRipeng、dutyu、echo-dundun、ElvinWei、englefly、Euporia、feelshana、feifeifeimoon、feiniaofeiafei、felixwluo、figurant、flynn、fornaix、FreeOnePlus、Gabriel39、gitccl、gnehil、GoGoWen、gohalo、guardcrystal、hammer、HappenLee、HB、hechao、HelgeLarsHelge、herry2038、HeZhangJianHe、HHoflittlefish777、HonestManXin、hongkun-Shao、HowardQin、hqx871、httpshirley、htyoung、huanghaibin、HuJerryHu、HuZhiyuHu、Hyman-zhao、i78086、irenesrl、ixzc、jacktengg、jacktengg、jackwener、jayhua、Jeffrey、jiafeng.zhang、Jibing-Li、JingDas、julic20s、kaijchen、kaka11chen、KassieZ、kindred77、KirsCalvinKirs、KirsCalvinKirs、kkop、koarz、LemonLiTree、LHG41278、liaoxin01、LiBinfeng-01、LiChuangLi、LiDongyangLi、Lightman、lihangyu、lihuigang、LingAdonisLing、liugddx、LiuGuangdongLiu、LiuHongLiu、liuJiwenliu、LiuLijiaLiu、lsy3993、LuGuangmingLu、LuoMetaLuo、luozenglin、Luwei、Luzhijing、lxliyou001、Ma1oneZhang、mch_ucchi、Miaohongkai、morningman、morrySnow、Mryange、mymeiyi、nanfeng、nanfeng、Nitin-Kashyap、PaiVallishPai、Petrichor、plat1ko、py023、q763562998、qidaye、QiHouliangQi、ranxiang327、realize096、rohitrs1983、sdhzwc、seawinde、seuhezhiqiang、seuhezhiqiang、shee、shuke987、shysnow、songguangfan、Stalary、starocean999、SunChenyangSun、sunny、SWJTU-ZhangLei、TangSiyang2001、Tanya-W、taoxutao、Uniqueyou、vhwzIs、walter、walter、wangbo、Wanghuan、wangqt、wangtao、wangtianyi2004、wenluowen、whuxingying、wsjz、wudi、wudongliang、wuwenchihdu、wyx123654、xiangran0327、Xiaocc、XiaoChangmingXiao、xiaokang、XieJiann、Xinxing、xiongjx、xuefengze、xueweizhang、XueYuhai、XuJianxu、xuke-hat、xy、xy720、xyfsjq、xzj7019、yagagagaga、yangshijie、YangYAN、yiguolei、yiguolei、yimeng、YinShaowenYin、Yoko、yongjinhou、ytwp、yuanyuan8983、yujian、yujun777、Yukang-Lian、Yulei-Yang、yuxuan-luo、zclllyybb、ZenoYang、zfr95、zgxme、zhangdong、zhangguoqiang、zhangstar333、zhangstar333、zhangy5、ZhangYu0123、zhannngchen、ZhaoLongZhao、zhaoshuo、zhengyu、zhiqqqq、ZhongJinHacker、ZhuArmandoZhu、zlw5307、ZouXinyiZou、zxealous、zy-kkk、zzwwhh、zzzxl1993、zzzzzzzs
\ No newline at end of file
+467887319, 924060929, acnot, airborne12, AKIRA, alan_rodriguez, AlexYue, allenhooo, amory, amory, AshinGau, beat4ocean, BePPPower, bigben0204, bingquanzhao, BirdAmosBird, BiteTheDDDDt, bobhan1, caiconghui, camby, camby, CanGuan, caoliang-web, catpineapple, Centurybbx, chen, ChengDaqi2023, ChenyangSunChenyang, Chester, ChinaYiGuan, ChouGavinChou, chunping, colagy, CSTGluigi, czzmmc, daidai, dalong, dataroaring, DeadlineFen, DeadlineFen, deadlinefen, deardeng, didiaode18, DongLiang-0, dong-shuai, Doris-Extras, Dragonliu2018, DrogonJackDrogon, DuanXujianDuan, DuRipeng, dutyu, echo-dundun, ElvinWei, englefly, Euporia, feelshana, feifeifeimoon, feiniaofeiafei, felixwluo, figurant, flynn, fornaix, FreeOnePlus, Gabriel39, gitccl, gnehil, GoGoWen, gohalo, guardcrystal, hammer, HappenLee, HB, hechao, HelgeLarsHelge, herry2038, HeZhangJianHe, HHoflittlefish777, HonestManXin, hongkun-Shao, HowardQin, hqx871, httpshirley, htyoung, huanghaibin, HuJerryHu, HuZhiyuHu, Hyman-zhao, i78086, irenesrl, ixzc, jacktengg, jacktengg, jackwener, jayhua, Jeffrey, jiafeng.zhang, Jibing-Li, JingDas, julic20s, kaijchen, kaka11chen, KassieZ, kindred77, KirsCalvinKirs, KirsCalvinKirs, kkop, koarz, LemonLiTree, LHG41278, liaoxin01, LiBinfeng-01, LiChuangLi, LiDongyangLi, Lightman, lihangyu, lihuigang, LingAdonisLing, liugddx, LiuGuangdongLiu, LiuHongLiu, liuJiwenliu, LiuLijiaLiu, lsy3993, LuGuangmingLu, LuoMetaLuo, luozenglin, Luwei, Luzhijing, lxliyou001, Ma1oneZhang, mch_ucchi, Miaohongkai, morningman, morrySnow, Mryange, mymeiyi, nanfeng, nanfeng, Nitin-Kashyap, PaiVallishPai, Petrichor, plat1ko, py023, q763562998, qidaye, QiHouliangQi, ranxiang327, realize096, rohitrs1983, sdhzwc, seawinde, seuhezhiqiang, seuhezhiqiang, shee, shuke987, shysnow, songguangfan, Stalary, starocean999, SunChenyangSun, sunny, SWJTU-ZhangLei, TangSiyang2001, Tanya-W, taoxutao, Uniqueyou, vhwzIs, walter, walter, wangbo, Wanghuan, wangqt, wangtao, wangtianyi2004, wenluowen, whuxingying, wsjz, wudi, wudongliang, wuwenchihdu, wyx123654, xiangran0327, Xiaocc, XiaoChangmingXiao, xiaokang, XieJiann, Xinxing, xiongjx, xuefengze, xueweizhang, XueYuhai, XuJianxu, xuke-hat, xy, xy720, xyfsjq, xzj7019, yagagagaga, yangshijie, YangYAN, yiguolei, yiguolei, yimeng, YinShaowenYin, Yoko, yongjinhou, ytwp, yuanyuan8983, yujian, yujun777, Yukang-Lian, Yulei-Yang, yuxuan-luo, zclllyybb, ZenoYang, zfr95, zgxme, zhangdong, zhangguoqiang, zhangstar333, zhangstar333, zhangy5, ZhangYu0123, zhannngchen, ZhaoLongZhao, zhaoshuo, zhengyu, zhiqqqq, ZhongJinHacker, ZhuArmandoZhu, zlw5307, ZouXinyiZou, zxealous, zy-kkk, zzwwhh, zzzxl1993, zzzzzzzs
\ No newline at end of file
diff --git a/versioned_docs/version-2.1/releasenotes/release-2.1.1.md b/versioned_docs/version-2.1/releasenotes/release-2.1.1.md
new file mode 100644
index 0000000..e6b8f3b
--- /dev/null
+++ b/versioned_docs/version-2.1/releasenotes/release-2.1.1.md
@@ -0,0 +1,249 @@
+---
+{
+    "title": "Release 2.1.1",
+    "language": "en"
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+Dear community members, Apache Doris 2.1.1 has been officially released on April 3, 2024, with several enhancements and bug fixes based on 2.1.0, enabling smoother user experience.
+
+- **Quick Download:** [https://doris.apache.org/download/](https://doris.apache.org/download/)
+
+- **GitHub：** [https://github.com/apache/doris/releases](https://github.com/apache/doris/releases)
+
+## Behavior Changed
+
+1. Change float type output format to improve float type serialization performance.
+
+   - https://github.com/apache/doris/pull/32049
+
+2. Change system table value functions active_queries(), workload_groups() to system tables. 
+
+   - https://github.com/apache/doris/pull/32314
+
+3. Disable show query/load profile stmt because there are not so many developers use it and the pipeline and pipelinex engine not support it. 
+
+   - https://github.com/apache/doris/pull/32467
+
+4. Upgrade arrow flight version to 15.0.2 to fix some bugs, so that please use ADBC 15.0.2 version to access Doris. 
+
+   - https://github.com/apache/doris/pull/32827.
+
+## Upgrade Problem
+
+1. BE will core when rolling pgrade problem from 2.0.x to 2.1.x 
+
+   - https://github.com/apache/doris/pull/32672
+
+   - https://github.com/apache/doris/pull/32444
+
+   - https://github.com/apache/doris/pull/32162
+
+2. JDBC Catalog will have query errors when rolling grade rom 2.0.x to 2.1.x. 
+
+   - https://github.com/apache/doris/pull/32618
+
+
+
+## New Feature
+
+1. Enable column auth by default.
+
+   - https://github.com/apache/doris/pull/32659
+
+
+2. Get correct cores for pipeline and pipelinex engine when running within docker or k8s. 
+   
+   - https://github.com/apache/doris/pull/32370
+
+3. Support read parquet int96 type. 
+
+   - https://github.com/apache/doris/pull/32394
+
+4. Enable proxy protocol to support IP transparency. Using this protocol, IP transparency for load balancing can be achieved, so that after load balancing, Doris can still obtain the client's real IP and implement permission control such as whitelisting. 
+
+   - https://github.com/apache/doris/pull/32338/files
+
+5. Add workload group queue related columns for active_queries system table. Uses could use this system to monitor the workload queue usage. 
+
+   - https://github.com/apache/doris/pull/32259
+
+6. Add new system table backend_active_tasks to monitor the realtime query statics on every BE. 
+
+   - https://github.com/apache/doris/pull/31945
+
+7. Add ipv4 and ipv6 support for spark-doris connector. 
+
+   - https://github.com/apache/doris/pull/32240
+
+8. Add inverted index support for CCR. 
+
+   - https://github.com/apache/doris/pull/32101
+
+9. Support select experimental session variable. 
+
+   - https://github.com/apache/doris/pull/31837
+
+10. Support materialized view with bitmap_union(bitmap_from_array()) case. 
+
+    - https://github.com/apache/doris/pull/31962
+
+11. Support partition prune for *HIVE_DEFAULT_PARTITION*. 
+
+    - https://github.com/apache/doris/pull/31736
+
+12. Support function in set variable statement. 
+
+    - https://github.com/apache/doris/pull/32492
+
+13. Support arrow serialization for varint type. 
+
+    - https://github.com/apache/doris/pull/32809
+
+
+
+## Optimization
+
+1. Auto resume routine load when be restart or during upgrade. And keep the routine load stable. 
+
+   - https://github.com/apache/doris/pull/32239
+
+2. Routine Load: optimize allocate task to be algorithm for load balance. 
+
+   - https://github.com/apache/doris/pull/32021
+
+3. Spark Load: update spark version for spark load to resolve cve problem. 
+
+   - https://github.com/apache/doris/pull/30368
+
+4. Skip cooldown if the tablet is dropped. 
+
+   - https://github.com/apache/doris/pull/32079
+
+5. Support using workload group to manage routine load. 
+
+   - https://github.com/apache/doris/pull/31671
+
+6. [MTMV ]Improve the performance for query rewritting by materialized view. 
+
+   - https://github.com/apache/doris/pull/31886
+
+7. Reduce jvm heap memory consumed by profiles of BrokerLoadJob. 
+
+   - https://github.com/apache/doris/pull/31985
+8. Imporve the high QPS query by speed up PartitionPrunner. 
+
+   - https://github.com/apache/doris/pull/31970
+
+9. Reduce duplicated memory consumption for column name and column path for schema cache. 
+
+   - https://github.com/apache/doris/pull/31141
+
+10. Support more join types for query rewriting by materialized view such as INNER JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, FULL OUTER JOIN, LEFT SEMI JOIN, RIGHT SEMI JOIN, LEFT ANTI JOIN, RIGHT ANTI JOIN 
+
+    - https://github.com/apache/doris/pull/32909
+
+
+
+## Bugfix
+
+
+1. Do not push down topn-filter through right/full outer join if the first orderkey is nulls first. 
+
+   - https://github.com/apache/doris/pull/32633
+
+2. Fix memory leak in Java UDF 
+
+   - https://github.com/apache/doris/pull/32630
+
+3. If some odbc tables use the same resource, and restore not all odbc tables, it will not retain the resource.
+   and check some conf for backup/restore 
+
+   - https://github.com/apache/doris/pull/31989
+
+4. Fold constant will core for variant type. 
+
+   - https://github.com/apache/doris/pull/32265
+
+5. Routine load will pause when transaction fail in some cases. 
+
+   - https://github.com/apache/doris/pull/32638
+
+6. the result of left semi join with empty right side should be false instead of null. 
+
+   - https://github.com/apache/doris/pull/32477
+
+7. Fix core when build inverted index for a new column with no data. 
+
+   - https://github.com/apache/doris/pull/32669
+
+8. Fix be core caused by null-safe-equal join. 
+
+   - https://github.com/apache/doris/pull/32623
+
+9. Partial update: fix data correctness risk when load delete sign data into a table with sequence col. 
+
+   - https://github.com/apache/doris/pull/32574
+
+10. Select outfile: Fix the column type mapping in the orc/parquet file format. 
+
+    - https://github.com/apache/doris/pull/32281
+
+11. Fix BE core during restore stage. 
+
+    - https://github.com/apache/doris/pull/32489
+
+12. Use array_agg func after other agg func like count, sum, may make be core. 
+
+    - https://github.com/apache/doris/pull/32387
+
+13. Variant type should always nullable or there will some bugs. 
+
+    - https://github.com/apache/doris/pull/32248
+
+14. Fix the bug of handling empty blocks in schema change. 
+
+    - https://github.com/apache/doris/pull/32396
+
+15. Fix BE will core when use json_length() in some cases. 
+
+    - https://github.com/apache/doris/pull/32145
+
+16. Fix error when query iceberg table using date cast predicate 
+
+    - https://github.com/apache/doris/pull/32194
+
+17. Fix some bugs when build inverted index for variant type. 
+
+    - https://github.com/apache/doris/pull/31992
+
+18. Wrong result of two or more map_agg functions in query. 
+
+    - https://github.com/apache/doris/pull/31928
+
+19. Fix wrong result of money_format function. 
+
+    - https://github.com/apache/doris/pull/31883
+
+20. Fix connection hang after too many connections. 
+
+    - https://github.com/apache/doris/pull/31594
\ No newline at end of file
diff --git a/versioned_sidebars/version-2.1-sidebars.json b/versioned_sidebars/version-2.1-sidebars.json
index 3dd5d8c..d38177d 100644
--- a/versioned_sidebars/version-2.1-sidebars.json
+++ b/versioned_sidebars/version-2.1-sidebars.json
@@ -1455,6 +1455,7 @@
             "type": "category",
             "label": "Release notes",
             "items": [
+                "releasenotes/release-2.1.1",
                 "releasenotes/release-2.1.0",
                 "releasenotes/release-2.0.7",
                 "releasenotes/release-2.0.6",