diff --git a/docs/lifecycle-hooks.md b/docs/lifecycle-hooks.md
index 97d254e..4d8ca60 100644
--- a/docs/lifecycle-hooks.md
+++ b/docs/lifecycle-hooks.md
@@ -1,45 +1,51 @@
-
 ## Executing commands before and after updating
 
-> **DO NOTE**: Both commands are shell commands executed with `sh`, and therefore require the 
+> **DO NOTE**: These are shell commands executed with `sh`, and therefore require the
 > container to provide the `sh` executable.
 
-It is possible to execute a *pre-update* command and a *post-update* command 
-**inside** every container updated by watchtower. The *pre-update* command is 
-executed before stopping the container, and the *post-update* command is 
-executed after restarting the container.
+It is possible to execute _pre/post\-check_ and _pre/post\-update_ commands
+**inside** every container updated by watchtower.
+
+- The _pre-check_ command is executed before checking the container for updates.
+- The _pre-update_ command is executed before stopping the container when an update is about to start.
+- The _post-update_ command is executed after restarting the updated container
+- The _post-check_ command is executed last after a updated container is started or no update was needed.
 
 This feature is disabled by default. To enable it, you need to set the option
 `--enable-lifecycle-hooks` on the command line, or set the environment variable
 `WATCHTOWER_LIFECYCLE_HOOKS` to `true`.
 
- 
-
 ### Specifying update commands
 
-The commands are specified using docker container labels, with 
-`com.centurylinklabs.watchtower.lifecycle.pre-update-command` for the *pre-update* 
-command and `com.centurylinklabs.watchtower.lifecycle.post-update` for the
-*post-update* command.
+The commands are specified using docker container labels, the following are currently available:
 
-These labels can be declared as instructions in a Dockerfile:
+- `com.centurylinklabs.watchtower.lifecycle.pre-check` - _pre-check_
+- `com.centurylinklabs.watchtower.lifecycle.pre-update-command` - _pre-update_
+- `com.centurylinklabs.watchtower.lifecycle.post-update` - _post-update_
+- `com.centurylinklabs.watchtower.lifecycle.post-check` - _post-check_
+
+These labels can be declared as instructions in a Dockerfile (with some example .sh files):
 
 ```docker
+LABEL com.centurylinklabs.watchtower.lifecycle.pre-check="/sync.sh"
 LABEL com.centurylinklabs.watchtower.lifecycle.pre-update="/dump-data.sh"
 LABEL com.centurylinklabs.watchtower.lifecycle.post-update="/restore-data.sh"
+LABEL com.centurylinklabs.watchtower.lifecycle.post-check="/send-heartbeat.sh"
 ```
 
 Or be specified as part of the `docker run` command line:
 
 ```bash
 docker run -d \
+  --label=com.centurylinklabs.watchtower.lifecycle.pre-check="/sync.sh" \
   --label=com.centurylinklabs.watchtower.lifecycle.pre-update="/dump-data.sh" \
   --label=com.centurylinklabs.watchtower.lifecycle.post-update="/restore-data.sh" \
   someimage
+  --label=com.centurylinklabs.watchtower.lifecycle.post-check="/send-heartbeat.sh" \
 ```
 
 ### Execution failure
 
-The failure of a command to execute, identified by an exit code different than 
+The failure of a command to execute, identified by an exit code different than
 0, will not prevent watchtower from updating the container. Only an error
-log statement containing the exit code will be reported.
\ No newline at end of file
+log statement containing the exit code will be reported.