diff --git a/README.md b/README.md
index 16329ba00..17a4d05d9 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ This project is released under the [Apache 2.0 license](LICENSE).
 
 ## Changelog
 
-v0.12.0 was released in 04/03/2021.
+v0.13.0 was released in 05/05/2021.
 Please refer to [changelog.md](docs/changelog.md) for details and release history.
 
 ## Benchmark and model zoo
diff --git a/docs/changelog.md b/docs/changelog.md
index db3d005f9..7d4a0d800 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,5 +1,45 @@
 ## Changelog
 
+### V0.13 (05/05/2021)
+
+**Highlights**
+
+- Support Pascal Context Class-59 dataset.
+- Support Visual Transformer Backbone.
+- Support mFscore metric.
+
+**Bug Fixes**
+
+- Fixed Colaboratory tutorial ([#451](https://github.com/open-mmlab/mmsegmentation/pull/451))
+- Fixed mIoU calculation range ([#471](https://github.com/open-mmlab/mmsegmentation/pull/471))
+- Fixed sem_fpn, unet README.md ([#492](https://github.com/open-mmlab/mmsegmentation/pull/492))
+- Fixed `num_classes` in FCN for Pascal Context 60-class dataset ([#488](https://github.com/open-mmlab/mmsegmentation/pull/488))
+- Fixed FP16 inference ([#497](https://github.com/open-mmlab/mmsegmentation/pull/497))
+
+**New Features**
+
+- Support dynamic export and visualize to pytorch2onnx ([#463](https://github.com/open-mmlab/mmsegmentation/pull/463))
+- Support export to torchscript ([#469](https://github.com/open-mmlab/mmsegmentation/pull/469), [#499](https://github.com/open-mmlab/mmsegmentation/pull/499))
+- Support Pascal Context Class-59 dataset ([#459](https://github.com/open-mmlab/mmsegmentation/pull/459))
+- Support Visual Transformer backbone ([#465](https://github.com/open-mmlab/mmsegmentation/pull/465))
+- Support UpSample Neck ([#512](https://github.com/open-mmlab/mmsegmentation/pull/512))
+- Support mFscore metric ([#509](https://github.com/open-mmlab/mmsegmentation/pull/509))
+
+**Improvements**
+
+- Add more CI for PyTorch ([#460](https://github.com/open-mmlab/mmsegmentation/pull/460))
+- Add print model graph args for tools/print_config.py ([#451](https://github.com/open-mmlab/mmsegmentation/pull/451))
+- Add cfg links in modelzoo README.md ([#468](https://github.com/open-mmlab/mmsegmentation/pull/469))
+- Add BaseSegmentor import to segmentors/__init__.py ([#495](https://github.com/open-mmlab/mmsegmentation/pull/495))
+- Add MMOCR, MMGeneration links ([#501](https://github.com/open-mmlab/mmsegmentation/pull/501), [#506](https://github.com/open-mmlab/mmsegmentation/pull/506))
+- Add Chinese QR code ([#506](https://github.com/open-mmlab/mmsegmentation/pull/506))
+- Use MMCV MODEL_REGISTRY ([#515](https://github.com/open-mmlab/mmsegmentation/pull/515))
+- Add ONNX testing tools ([#498](https://github.com/open-mmlab/mmsegmentation/pull/498))
+- Replace data_dict calling 'img' key to support MMDet3D ([#514](https://github.com/open-mmlab/mmsegmentation/pull/514))
+- Support reading class_weight from file in loss function ([#513](https://github.com/open-mmlab/mmsegmentation/pull/513))
+- Make tags as comment ([#505](https://github.com/open-mmlab/mmsegmentation/pull/505))
+- Use MMCV EvalHook ([#438](https://github.com/open-mmlab/mmsegmentation/pull/438))
+
 ### V0.12 (04/03/2021)
 
 **Highlights**
diff --git a/mmseg/version.py b/mmseg/version.py
index 6a9a6ddda..e090d9f31 100644
--- a/mmseg/version.py
+++ b/mmseg/version.py
@@ -1,6 +1,6 @@
 # Copyright (c) Open-MMLab. All rights reserved.
 
-__version__ = '0.12.0'
+__version__ = '0.13.0'
 
 
 def parse_version_info(version_str):
diff --git a/tests/test_eval_hook.py b/tests/test_eval_hook.py
index c83623de0..394051b0b 100644
--- a/tests/test_eval_hook.py
+++ b/tests/test_eval_hook.py
@@ -112,7 +112,11 @@ def test_epoch_eval_hook():
                                                       logger=runner.logger)
 
 
-def multi_gpu_test(model, data_loader, tmpdir=None, gpu_collect=False):
+def multi_gpu_test(model,
+                   data_loader,
+                   tmpdir=None,
+                   gpu_collect=False,
+                   efficient_test=False):
     results = single_gpu_test(model, data_loader)
     return results