[Doc] Update changelog and README for 1.0.0rc3. (#1421)

* update changelog and README

* revise change log

README.md

@@ -106,12 +106,13 @@ hope MMEditing could provide better experience.
 
 ### 🌟 Preview of 1.x version
 
-A brand new version of [**MMEditing v1.0.0rc2**](https://github.com/open-mmlab/mmediting/releases/tag/v1.0.0rc2) was released in 02/11/2022:
+A brand new version of [**MMEditing v1.0.0rc3**](https://github.com/open-mmlab/mmediting/releases/tag/v1.0.0rc3) was released in 09/11/2022:
 
 - Support all the tasks, models, metrics, and losses in [MMGeneration](https://github.com/open-mmlab/mmgeneration) 😍。
 - Unifies interfaces of all components based on [MMEngine](https://github.com/open-mmlab/mmengine).
 - Support patch-based and slider-based image and video comparison viewer.
 - Support image colorization.
+- Convert `mmdet` and `clip` to optional requirements.
 
 Find more new features in [1.x branch](https://github.com/open-mmlab/mmediting/tree/1.x). Issues and PRs are welcome!
 

README_zh-CN.md

@@ -105,12 +105,13 @@ MMEditing 缜密地设计新的框架并将其精心实现，希望能够为您
 
 ### 🌟 1.x 预览版本
 
-全新的 [**MMEditing v1.0.0rc2**](https://github.com/open-mmlab/mmediting/releases/tag/v1.0.0rc2) 已经在 02/11/2022 发布:
+全新的 [**MMEditing v1.0.0rc3**](https://github.com/open-mmlab/mmediting/releases/tag/v1.0.0rc3) 已经在 09/11/2022 发布:
 
 - 支持[MMGeneration](https://github.com/open-mmlab/mmgeneration)中的全量任务、模型、优化函数和评价指标 😍。
 - 基于[MMEngine](https://github.com/open-mmlab/mmengine)统一了各组件接口。
 - 支持基于图像子块以及滑动条的图像和视频比较可视化工具。
 - 支持图像上色任务。
+- 将 `mmdet` 与 `clip` 切换为可选依赖
 
 在[1.x 分支](https://github.com/open-mmlab/mmediting/tree/1.x)中发现更多特性！欢迎提 Issues 和 PRs！
 

docs/en/notes/3_changelog.md

@@ -1,5 +1,34 @@
 # Changelog
 
+## v1.0.0rc3 (03/11/2022)
+
+**Highlights**
+
+We are excited to announce the release of MMEditing 1.0.0rc3. This release supports 43+ models, 170+ configs and 169+ checkpoints in MMGeneration and MMEditing. We highlight the following new features
+
+- convert `mmdet` and `clip` to optional requirements.
+
+**New Features & Improvements**
+
+- Support `try_import` for `mmdet`. (#1408)
+- Support `try_import` for `flip`. (#1420)
+- Complete requirements (#1419)
+- Update `.gitignore`. ($1416)
+- Set `real_feat` to cpu in `inception_utils`. (#1415)
+- Modify README and configs of StyleGAN2 and PEGAN (#1418)
+- Improve the rendering of Docs-API (#1373)
+
+**Bug Fixes**
+
+- Revise config and pretrain model loading in ESRGAN (#1407)
+- Revise config of LSGAN (#1409)
+- Revise config of CAIN (#1404)
+
+**Contributors**
+
+A total of 5 developers contributed to this release.
+@Z-Fran, @zengyh1900, @plyfager, @LeoXing1996, @ruoningYu.
+
 ## v1.0.0rc2 (02/11/2022)
 
 **Highlights**

mmedit/version.py

@@ -1,6 +1,6 @@
 # Copyright (c) Open-MMLab. All rights reserved.
 
-__version__ = '1.0.0rc2'
+__version__ = '1.0.0rc3'
 
 
 def parse_version_info(version_str):