diff --git a/README.md b/README.md
index b32c2518a73..3f45b3833f7 100644
--- a/README.md
+++ b/README.md
@@ -13,10 +13,10 @@
-[📘Documentation](https://mmdetection.readthedocs.io/en/v2.18.0/) |
-[🛠️Installation](https://mmdetection.readthedocs.io/en/v2.18.0/get_started.html) |
-[👀Model Zoo](https://mmdetection.readthedocs.io/zh_CN/v2.18.0/model_zoo.html) |
-[🆕Update News](https://mmdetection.readthedocs.io/en/v2.18.0/changelog.html) |
+[📘Documentation](https://mmdetection.readthedocs.io/en/v2.18.1/) |
+[🛠️Installation](https://mmdetection.readthedocs.io/en/v2.18.1/get_started.html) |
+[👀Model Zoo](https://mmdetection.readthedocs.io/zh_CN/v2.18.1/model_zoo.html) |
+[🆕Update News](https://mmdetection.readthedocs.io/en/v2.18.1/changelog.html) |
[🚀Ongoing Projects](https://github.com/open-mmlab/mmdetection/projects) |
[🤔Reporting Issues](https://github.com/open-mmlab/mmdetection/issues/new/choose)
@@ -60,10 +60,10 @@ This project is released under the [Apache 2.0 license](LICENSE).
## Changelog
-**2.18.0** was released in 27/10/2021:
-- Support [QueryInst](http://arxiv.org/abs/2105.01928).
-- Refactor dense_head to decouple onnx export from get_bboxes and speed up inference time.
-- Support infinite sampler to accelerate training when using iter based runner.
+**2.18.1** was released in 15/11/2021:
+- Release [QueryInst](http://arxiv.org/abs/2105.01928) pre-trained weights.
+- Support plot confusion matrix.
+- Fix SpatialReductionAttention in PVT and fix trunc_normal_init in both PVT and Swin-Transformer.
Please refer to [changelog.md](docs/changelog.md) for details and release history.
diff --git a/README_zh-CN.md b/README_zh-CN.md
index 07f9f1f9d4b..a81eac6ef78 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -13,10 +13,10 @@
-[📘使用文档](https://mmdetection.readthedocs.io/zh_CN/v2.18.0/) |
-[🛠️安装教程](https://mmdetection.readthedocs.io/zh_CN/v2.18.0/get_started.html) |
-[👀模型库](https://mmdetection.readthedocs.io/zh_CN/v2.18.0/model_zoo.html) |
-[🆕更新日志](https://mmdetection.readthedocs.io/en/v2.18.0/changelog.html) |
+[📘使用文档](https://mmdetection.readthedocs.io/zh_CN/v2.18.1/) |
+[🛠️安装教程](https://mmdetection.readthedocs.io/zh_CN/v2.18.1/get_started.html) |
+[👀模型库](https://mmdetection.readthedocs.io/zh_CN/v2.18.1/model_zoo.html) |
+[🆕更新日志](https://mmdetection.readthedocs.io/en/v2.18.1/changelog.html) |
[🚀进行中的项目](https://github.com/open-mmlab/mmdetection/projects) |
[🤔报告问题](https://github.com/open-mmlab/mmdetection/issues/new/choose)
@@ -59,10 +59,10 @@ MMDetection 是一个基于 PyTorch 的目标检测开源工具箱。它是 [Ope
## 更新日志
-最新的 **2.18.0** 版本已经在2021.10.27发布:
-- 支持 [QueryInst](http://arxiv.org/abs/2105.01928)。
-- 重构 dense_head 以将 onnx 导出与 get_bboxes 解耦并加快推理时间。
-- 支持 infinite sampler 加速 iter based runner 训练。
+最新的 **2.18.1** 版本已经在2021.11.15发布:
+- 发布了 [QueryInst](http://arxiv.org/abs/2105.01928) 的预训练模型。
+- 支持绘制混淆矩阵。
+- 修复了 PVT 中的 SpatialReductionAttention 以及 PVT 和 Swin-Transformer 中 trunc_normal_init 的错误用法。
如果想了解更多版本更新细节和历史信息，请阅读[更新日志](docs/changelog.md)。
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 2ebbf76d043..8dbeb6682c5 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -13,7 +13,7 @@ RUN apt-get update && apt-get install -y ffmpeg libsm6 libxext6 git ninja-build
&& rm -rf /var/lib/apt/lists/*
# Install MMCV
-RUN pip install mmcv-full==1.3.14 -f https://download.openmmlab.com/mmcv/dist/cu101/torch1.6.0/index.html
+RUN pip install mmcv-full==1.3.17 -f https://download.openmmlab.com/mmcv/dist/cu101/torch1.6.0/index.html
# Install MMDetection
RUN conda clean --all
diff --git a/docker/serve/Dockerfile b/docker/serve/Dockerfile
index 429f7a5e238..02fb10c5ce2 100644
--- a/docker/serve/Dockerfile
+++ b/docker/serve/Dockerfile
@@ -3,8 +3,8 @@ ARG CUDA="10.1"
ARG CUDNN="7"
FROM pytorch/pytorch:${PYTORCH}-cuda${CUDA}-cudnn${CUDNN}-devel
-ARG MMCV="1.3.14"
-ARG MMDET="2.18.0"
+ARG MMCV="1.3.17"
+ARG MMDET="2.18.1"
ENV PYTHONUNBUFFERED TRUE
diff --git a/docs/changelog.md b/docs/changelog.md
index a5ee20d78c2..cbf5bbbcd65 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,5 +1,41 @@
## Changelog
+### v2.18.1 (15/11/2021)
+
+#### Highlights
+
+- Release [QueryInst](http://arxiv.org/abs/2105.01928) pre-trained weights (#6460)
+- Support plot confusion matrix (#6344)
+
+#### New Features
+
+- Release [QueryInst](http://arxiv.org/abs/2105.01928) pre-trained weights (#6460)
+- Support plot confusion matrix (#6344)
+
+#### Bug Fixes
+
+- Fix aug test error when the number of prediction bboxes is 0 (#6398)
+- Fix SpatialReductionAttention in PVT (#6488)
+- Fix wrong use of `trunc_normal_init` in PVT and Swin-Transformer (#6432)
+
+#### Improvements
+
+- Save the printed AP information of COCO API to logger (#6505)
+- Always map location to cpu when load checkpoint (#6405)
+- Set a random seed when the user does not set a seed (#6457)
+
+#### Documents
+
+- Chinese version of [Corruption Benchmarking](docs/robustness_benchmarking.mddocs/robustness_benchmarking.md) (#6375)
+- Fix config path in docs (#6396)
+- Update GRoIE readme (#6401)
+
+#### Contributors
+
+A total of 11 developers contributed to this release.
+Thanks @st9007a, @hachreak, @HarborYuan, @vealocia, @chhluo, @AndreaPi, @AronLin, @BIGWangYuDong, @hhaAndroid, @RangiLyu, @ZwwWayne
+
+
### v2.18.0 (27/10/2021)
#### Highlights
diff --git a/docs/compatibility.md b/docs/compatibility.md
index 4009c510df1..3d6b9459849 100644
--- a/docs/compatibility.md
+++ b/docs/compatibility.md
@@ -1,5 +1,12 @@
# Compatibility of MMDetection 2.x
+## MMDetection 2.18.1
+
+### MMCV compatibility
+
+In order to fix the wrong weight reference bug in BaseTransformerLayer, the logic in batch first mode of MultiheadAttention has been changed.
+We recommend to use MMCV v1.3.17 or higher. For more details, please refer to [MMCV PR #1418](https://github.com/open-mmlab/mmcv/pull/1418).
+
## MMDetection 2.18.0
### DIIHead compatibility
diff --git a/docs_zh-CN/compatibility.md b/docs_zh-CN/compatibility.md
index 59ff8367058..80acf7f1a0e 100644
--- a/docs_zh-CN/compatibility.md
+++ b/docs_zh-CN/compatibility.md
@@ -1,5 +1,12 @@
# MMDetection v2.x 兼容性说明
+## MMDetection 2.18.1
+
+### MMCV compatibility
+
+为了修复 BaseTransformerLayer 中的权重引用问题, MultiheadAttention 中 batch first 的逻辑有所改变。
+我们推荐使用 MMCV v1.3.17 或更高版本。 更多信息请参考 [MMCV PR #1418](https://github.com/open-mmlab/mmcv/pull/1418) 。
+
## MMDetection 2.18.0
### DIIHead 兼容性
diff --git a/docs_zh-CN/get_started.md b/docs_zh-CN/get_started.md
index 9a7b332ca00..9f597e7a361 100644
--- a/docs_zh-CN/get_started.md
+++ b/docs_zh-CN/get_started.md
@@ -11,7 +11,8 @@ MMDetection 和 MMCV 版本兼容性如下所示，需要安装正确的 MMCV
| MMDetection 版本 | MMCV 版本 |
| :--------------: | :----------------------: |
-| master | mmcv-full>=1.3.14, <1.4.0 |
+| master | mmcv-full>=1.3.17, <1.4.0 |
+| 2.18.1 | mmcv-full>=1.3.17, <1.4.0 |
| 2.18.0 | mmcv-full>=1.3.14, <1.4.0 |
| 2.17.0 | mmcv-full>=1.3.14, <1.4.0 |
| 2.16.0 | mmcv-full>=1.3.8, <1.4.0 |
diff --git a/mmdet/version.py b/mmdet/version.py
index cebb423a010..7acf53dfde9 100644
--- a/mmdet/version.py
+++ b/mmdet/version.py
@@ -1,6 +1,6 @@
# Copyright (c) OpenMMLab. All rights reserved.
-__version__ = '2.18.0'
+__version__ = '2.18.1'
short_version = __version__
diff --git a/requirements/mminstall.txt b/requirements/mminstall.txt
index 8aba851ba8c..b53dbf4108e 100644
--- a/requirements/mminstall.txt
+++ b/requirements/mminstall.txt
@@ -1 +1 @@
-mmcv-full>=1.3.8
+mmcv-full>=1.3.17