diff --git a/README.md b/README.md
index c86f6c8b..d58b0f1d 100644
--- a/README.md
+++ b/README.md
@@ -216,6 +216,7 @@ steps:
 | new_release_patch_version | Patch version of the new release. (e.g. `0`) |
 | new_release_channel       | The distribution channel on which the last release was initially made available (undefined for the default distribution channel). |
 | new_release_notes         | The release notes for the new release. |
+| last_release_version      | Version of the previous release, if there was one. (e.g. `1.2.0`) |
 
 #### Using Output Variables:
 ```yaml
diff --git a/src/outputs.json b/src/outputs.json
index 5666d43b..0c3703dd 100644
--- a/src/outputs.json
+++ b/src/outputs.json
@@ -5,5 +5,6 @@
   "new_release_minor_version": "new_release_minor_version",
   "new_release_patch_version": "new_release_patch_version",
   "new_release_channel": "new_release_channel",
-  "new_release_notes": "new_release_notes"
+  "new_release_notes": "new_release_notes",
+  "last_release_version": "last_release_version"
 }
diff --git a/src/windUpJob.task.js b/src/windUpJob.task.js
index 3133b130..ae31d275 100644
--- a/src/windUpJob.task.js
+++ b/src/windUpJob.task.js
@@ -40,4 +40,5 @@ module.exports = async (result) => {
   core.setOutput(outputs.new_release_patch_version, patch);
   core.setOutput(outputs.new_release_channel, channel);
   core.setOutput(outputs.new_release_notes, notes);
+  core.setOutput(outputs.last_release_version, lastRelease.version)
 };