diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae0aead7..420e2282 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,20 @@
 # Changelog
 
-# Unreleased
-- Fixed extraction of `mangadex` manga with more than 100 chapters (#84)
+## 1.4.0 - 2018-06-08
+- Added support for:
+  - `simplyhentai` - https://www.simply-hentai.com/ ([#89](https://github.com/mikf/gallery-dl/issues/89))
+- Added extractors for
+  - `pixiv` search results and followed users
+  - `deviantart` search results and popular listings
+- Added post-processors to perform actions on downloaded files
+- Added options to configure logging behavior
+- Added OAuth support for `smugmug`
+- Changed `pixiv` extractors to use the AppAPI
+  - this breaks `favorite` archive IDs and changes some metadata fields
+- Changed the default filename format for `tumblr` and renamed `offset` to `num`
+- Fixed a possible UnicodeDecodeError during installation ([#86](https://github.com/mikf/gallery-dl/issues/86))
+- Fixed extraction of `mangadex` manga with more than 100 chapters ([#84](https://github.com/mikf/gallery-dl/issues/84))
+- Fixed miscellaneous issues for `imgur`, `reddit`, `komikcast`, `mangafox` and `imagebam`
 
 ## 1.3.5 - 2018-05-04
 - Added support for:
diff --git a/README.rst b/README.rst
index 4302e457..1d52dea4 100644
--- a/README.rst
+++ b/README.rst
@@ -215,12 +215,12 @@ access to *gallery-dl*. Authorize it and you will he shown one or more
 .. _gallery-dl-example.conf: https://github.com/mikf/gallery-dl/blob/master/docs/gallery-dl-example.conf
 .. _configuration.rst:       https://github.com/mikf/gallery-dl/blob/master/docs/configuration.rst
 .. _Complete List:           https://github.com/mikf/gallery-dl/blob/master/docs/supportedsites.rst
-.. _standalone executable:   https://github.com/mikf/gallery-dl/releases/download/v1.3.5/gallery-dl.exe
+.. _standalone executable:   https://github.com/mikf/gallery-dl/releases/download/v1.4.0/gallery-dl.exe
 .. _Python:   https://www.python.org/downloads/
 .. _Requests: https://pypi.python.org/pypi/requests/
 .. _PyPI:     https://pypi.python.org/pypi
 .. _pip:      https://pip.pypa.io/en/stable/
-.. _stable:   https://github.com/mikf/gallery-dl/archive/v1.3.5.zip
+.. _stable:   https://github.com/mikf/gallery-dl/archive/v1.4.0.zip
 .. _dev:      https://github.com/mikf/gallery-dl/archive/master.zip
 .. _OAuth:    https://en.wikipedia.org/wiki/OAuth
 
diff --git a/gallery_dl/version.py b/gallery_dl/version.py
index 45c77642..ab527400 100644
--- a/gallery_dl/version.py
+++ b/gallery_dl/version.py
@@ -6,4 +6,4 @@
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
 
-__version__ = "1.4.0-dev"
+__version__ = "1.4.0"
diff --git a/setup.py b/setup.py
index 432fb703..c0083383 100644
--- a/setup.py
+++ b/setup.py
@@ -83,6 +83,7 @@ setup(
         "gallery_dl",
         "gallery_dl.extractor",
         "gallery_dl.downloader",
+        "gallery_dl.postprocessor",
     ],
     keywords="image gallery downloader crawler scraper",
     classifiers=[