diff --git a/README.md b/README.md
index ad887405bb3..9cd1eaf5821 100644
--- a/README.md
+++ b/README.md
@@ -77,9 +77,11 @@ Apart from MMDetection, we also released a library [mmcv](https://github.com/ope
 
 ### 💎 Stable version
 
-**2.27.0** was released in 5/1/2023:
+**2.28.0** was released in 28/1/2023:
 
-- Support receptive field search of CNN models([TPAMI 2022: RF-Next](http://mftp.mmcheng.net/Papers/22TPAMI-ActionSeg.pdf)).
+- Support Objects365 Dataset, and Separated and Occluded COCO metric
+- Support acceleration of RetinaNet and SSD on Ascend
+- Deprecate the support of Python 3.6
 
 Please refer to [changelog.md](docs/en/changelog.md) for details and release history.
 
diff --git a/README_zh-CN.md b/README_zh-CN.md
index f9390642efc..45e81b2876f 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -76,9 +76,11 @@ MMDetection 是一个基于 PyTorch 的目标检测开源工具箱。它是 [Ope
 
 ### 💎 稳定版本
 
-最新的 **2.27.0** 版本已经在 2023.1.5 发布:
+最新的 **2.28.0** 版本已经在 2023.1.28 发布:
 
-- 支持 CNN 模型的感受野搜索 ([TPAMI 2022: RF-Next](http://mftp.mmcheng.net/Papers/22TPAMI-ActionSeg.pdf))。
+- 支持 Object365 数据集和遮挡物检测的 benchmark
+- 支持 SSD 和 RetinaNet 算法在昇腾芯片上的加速
+- 不再保证对 Python 3.6 的支持
 
 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/en/changelog.md)。
 
diff --git a/docker/serve/Dockerfile b/docker/serve/Dockerfile
index c784c7f0245..e9f0d84d278 100644
--- a/docker/serve/Dockerfile
+++ b/docker/serve/Dockerfile
@@ -4,7 +4,7 @@ ARG CUDNN="7"
 FROM pytorch/pytorch:${PYTORCH}-cuda${CUDA}-cudnn${CUDNN}-devel
 
 ARG MMCV="1.3.17"
-ARG MMDET="2.27.0"
+ARG MMDET="2.28.0"
 
 ENV PYTHONUNBUFFERED TRUE
 
diff --git a/docs/en/changelog.md b/docs/en/changelog.md
index acac7932735..bf355c723f4 100644
--- a/docs/en/changelog.md
+++ b/docs/en/changelog.md
@@ -1,5 +1,43 @@
 ## Changelog
 
+### v2.28.0 (28/1/2023)
+
+#### Highlights
+
+- Support Objects365 Dataset and Separated and Occluded COCO metric
+- Support acceleration of RetinaNet and SSD on Ascend
+- Deprecate the support of Python 3.6
+
+#### New Features and Improvements
+
+- Support Objects365 Dataset (#7525)
+- Support [Separated and Occluded COCO metric](https://arxiv.org/abs/2210.10046) (#9574)
+- Support acceleration of RetinaNet and SSD on Ascend with documentation (#9648, #9614)
+- Added missing `-` to `--format-only` in documentation.
+
+#### Deprecations
+
+- Upgrade the minimum Python version to 3.7, the support of Python 3.6 is no longer guaranteed (#9604)
+
+#### Bug Fixes
+
+- Fix validation loss logging by (#9663)
+- Fix inconsistent float precision between mmdet and mmcv (#9570)
+- Fix argument name for fp32 in `DeformableDETRHead` (#9607)
+- Fix typo of all config file path in Metafile.yml (#9627)
+
+#### Contributors
+
+A total of 11 developers contributed to this release.
+Thanks @eantono, @akstt, @@lpizzinidev, @RangiLyu, @kbumsik, @tianleiSHI, @nijkah, @BIGWangYuDong, @wangjiangben-hw, @@jamiechoi1995, @ZwwWayne
+
+## New Contributors
+
+- @kbumsik made their first contribution in https://github.com/open-mmlab/mmdetection/pull/9627
+- @akstt made their first contribution in https://github.com/open-mmlab/mmdetection/pull/9614
+- @lpizzinidev made their first contribution in https://github.com/open-mmlab/mmdetection/pull/9649
+- @eantono made their first contribution in https://github.com/open-mmlab/mmdetection/pull/9663
+
 ### v2.27.0 (5/1/2023)
 
 #### Highlights
diff --git a/docs/en/faq.md b/docs/en/faq.md
index 831294a0ff1..ccf86c36f09 100644
--- a/docs/en/faq.md
+++ b/docs/en/faq.md
@@ -11,6 +11,7 @@ We list some common troubles faced by many users and their corresponding solutio
 | MMDetection version |        MMCV version        |
 | :-----------------: | :------------------------: |
 |       master        | mmcv-full>=1.3.17, \<1.8.0 |
+|       2.28.0        | mmcv-full>=1.3.17, \<1.8.0 |
 |       2.27.0        | mmcv-full>=1.3.17, \<1.8.0 |
 |       2.26.0        | mmcv-full>=1.3.17, \<1.8.0 |
 |       2.25.3        | mmcv-full>=1.3.17, \<1.7.0 |
diff --git a/mmdet/version.py b/mmdet/version.py
index 3dfb35ed48a..889ab6ea7a2 100644
--- a/mmdet/version.py
+++ b/mmdet/version.py
@@ -1,6 +1,6 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 
-__version__ = '2.27.0'
+__version__ = '2.28.0'
 short_version = __version__