diff --git a/_config.yml b/_config.yml
index b590068ef8b..73f04dcb2f8 100644
--- a/_config.yml
+++ b/_config.yml
@@ -142,13 +142,13 @@ social:
 # Home Assistant release details
 current_major_version: 0
 current_minor_version: 78
-current_patch_version: 0
-date_released: 2018-09-17
+current_patch_version: 1
+date_released: 2018-09-20
 
 # Either # or the anchor link to latest release notes in the blog post.
 # Must be prefixed with a # and have double quotes around it.
 # Major release:
-patch_version_notes: "#"
+patch_version_notes: "#release-0781---september-20"
 # Minor release (Example #release-0431---april-25):
 
 # Date we moved to Discourse for comments
diff --git a/source/_posts/2018-09-15-release-78.markdown b/source/_posts/2018-09-15-release-78.markdown
index c778e032ac9..449b4efb79a 100644
--- a/source/_posts/2018-09-15-release-78.markdown
+++ b/source/_posts/2018-09-15-release-78.markdown
@@ -31,6 +31,23 @@ Also on your profile page is a new list of existing refresh tokens. These are al
 - Add Yale Smart Alarm component ([@domwillcode] - [#16377]) ([alarm_control_panel.yale_smart_alarm docs]) (new-platform)
 - Add OpenTherm Gateway climate platform ([@mvn23] - [#16299]) ([climate.opentherm_gw docs]) (new-platform)
 
+## {% linkable_title Release 0.78.1 - September 20 %}
+
+- Updates documentation repo URL in PR template ([@frenck] - [#16537])
+- SnmpSensor: Fix async_update (#16679) ([@mtdcr] - [#16716]) ([sensor.snmp docs])
+- Handle chromecast CONNECTION_STATUS_DISCONNECTED event ([@awarecan] - [#16732]) ([media_player.cast docs])
+- Upgrade netdisco to 2.1.0 ([@awarecan] - [#16735])
+
+[#16537]: https://github.com/home-assistant/home-assistant/pull/16537
+[#16716]: https://github.com/home-assistant/home-assistant/pull/16716
+[#16732]: https://github.com/home-assistant/home-assistant/pull/16732
+[#16735]: https://github.com/home-assistant/home-assistant/pull/16735
+[@awarecan]: https://github.com/awarecan
+[@frenck]: https://github.com/frenck
+[@mtdcr]: https://github.com/mtdcr
+[media_player.cast docs]: /components/media_player.cast/
+[sensor.snmp docs]: /components/sensor.snmp/
+
 ## {% linkable_title If you need help... %}
 
 ...don't hesitate to use our very active [forums](https://community.home-assistant.io/) or join us for a little [chat](https://discord.gg/c5DvZ4e). The release notes have comments enabled but it's preferred if you use the former communication channels. Thanks.