diff --git a/CHANGELOG.md b/CHANGELOG.md
index c66ba61..75ce405 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,9 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [1.2.0-RC1]
+## [2021.8.0]
 
-**Note**: This release requires ESPHome v1.21.0 and Home Assistant 2021.8.0 or newer.
+**Note**: This release requires ESPHome 2021.8.0 and Home Assistant 2021.8.0 or newer.
 
 ### Added
 - Preset identifiers (`group` and `preset`) for the `preset.activate` action are now
@@ -17,6 +17,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - The code has been made compatible with the new color mode support in Home Assistant
   and ESPHome. 
+- My project will follow the Home Assistant / ESPHome versioning scheme from now on
+  (<year>.<month>.<patch>), because the ESPHome project adopted this versioning
+  scheme too.
 
 ## [1.1.0]
 
diff --git a/README.md b/README.md
index 028dbce..dbcfbc8 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ aspect of the lamp and to integrate the lamp in your Home Assistant setup.
 
 For those who have experience with flashing ESPHome onto devices:
 
-* Make sure you are using ESPHome v1.21.0 or newer.
+* Make sure you are using ESPHome 2021.8.0 or newer.
 * Copy [`example.yaml`](example.yaml) to `<CONFIG_DIR>/<NODE_NAME>.yaml`.
 * Modify the configuration to your needs (see the [configuration guide](doc/configuration.md)).
 * Compile the `firmware.bin` file and download it to the device to which you have connected your
diff --git a/doc/installation.md b/doc/installation.md
index e04ff72..4732382 100644
--- a/doc/installation.md
+++ b/doc/installation.md
@@ -2,7 +2,7 @@
 
 # Installation guide
 
-The code must be compiled into a firmware using ESPHome v1.19.0 or later. Therefore, a prerequisite
+The code must be compiled into a firmware using ESPHome 2021.8.0 or later. Therefore, a prerequisite
 is that you have ESPHome up and running in some form (command line, docker container, web dashboard,
 possibly from within Home Assistant as an add-on). For information on this, please refer to the
 documentation on the [ESPHome website](https://esphome.io).
diff --git a/doc/testplan.md b/doc/testplan.md
index b500829..8de87f5 100644
--- a/doc/testplan.md
+++ b/doc/testplan.md
@@ -65,3 +65,11 @@ been introduced.
 ## Step 3: Release the new version
 
 Only after performing these tests successfully, the new version can be released.
+
+Before release, check if the minimum version requirement for ESPHome is documented
+correctly in the following files:
+
+  * doc/installation.md
+  * README.md
+  * CHANGELOG.md
+