From b1872416081e0cacad6c6043017dd43d17e16edf Mon Sep 17 00:00:00 2001
From: Sandstrom <1013635+tangix@users.noreply.github.com>
Date: Thu, 16 Jul 2020 21:09:19 +0200
Subject: [PATCH 1/2] Added clear upgrade instructions to 4.0.4

---
 .../source/installation/upgrade_404.rst       | 19 +++++++++++++++++++
 .../source/installation/upgrading.rst         |  5 +++--
 2 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 user_guide_src/source/installation/upgrade_404.rst

diff --git a/user_guide_src/source/installation/upgrade_404.rst b/user_guide_src/source/installation/upgrade_404.rst
new file mode 100644
index 000000000000..97e2ec26c250
--- /dev/null
+++ b/user_guide_src/source/installation/upgrade_404.rst
@@ -0,0 +1,19 @@
+#############################
+Upgrading from 4.0.x to 4.0.4
+#############################
+
+CodeIgniter 4.0.4 fixes a bug in the implementation of Controller Filter, breaking
+code implementing the ``FilterInterface``.
+
+**Update FilterInterface declarations**
+
+The method signatures for ``after()`` and ``before()`` need to be update to include ``$arguments``. The function
+definitions should be changed from::
+
+    public function before(RequestInterface $request)
+    public function after(RequestInterface $request, ResponseInterface $response)
+
+to::
+
+    public function before(RequestInterface $request, $arguments = null)
+    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
diff --git a/user_guide_src/source/installation/upgrading.rst b/user_guide_src/source/installation/upgrading.rst
index c271e0c90dea..1e0e8121edc4 100644
--- a/user_guide_src/source/installation/upgrading.rst
+++ b/user_guide_src/source/installation/upgrading.rst
@@ -6,6 +6,7 @@ Please read the upgrade notes corresponding to the version you are
 upgrading from.
 
 .. toctree::
-	:titlesonly:
+    :titlesonly:
 
-	Upgrading from 3.x to 4.x <upgrade_4xx>
\ No newline at end of file
+    Upgrading from 4.0.x to 4.0.4 <upgrade_404>
+	Upgrading from 3.x to 4.x <upgrade_4xx>

From 96f70706e48791ef53196fba2ac65d12d53557bd Mon Sep 17 00:00:00 2001
From: Sandstrom <1013635+tangix@users.noreply.github.com>
Date: Fri, 17 Jul 2020 07:51:14 +0200
Subject: [PATCH 2/2] Fixed spelling and added link to Controller Filters page.

---
 user_guide_src/source/installation/upgrade_404.rst | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/user_guide_src/source/installation/upgrade_404.rst b/user_guide_src/source/installation/upgrade_404.rst
index 97e2ec26c250..8703e3bd6680 100644
--- a/user_guide_src/source/installation/upgrade_404.rst
+++ b/user_guide_src/source/installation/upgrade_404.rst
@@ -2,12 +2,12 @@
 Upgrading from 4.0.x to 4.0.4
 #############################
 
-CodeIgniter 4.0.4 fixes a bug in the implementation of Controller Filter, breaking
+CodeIgniter 4.0.4 fixes a bug in the implementation of :doc:`Controller Filters </incoming/filters>`, breaking
 code implementing the ``FilterInterface``.
 
 **Update FilterInterface declarations**
 
-The method signatures for ``after()`` and ``before()`` need to be update to include ``$arguments``. The function
+The method signatures for ``after()`` and ``before()`` must be updated to include ``$arguments``. The function
 definitions should be changed from::
 
     public function before(RequestInterface $request)
@@ -17,3 +17,4 @@ to::
 
     public function before(RequestInterface $request, $arguments = null)
     public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
+