diff --git a/Custom-Post-Processing-Scripts.md b/Custom-Post-Processing-Scripts.md
index af9ff5c..6fc6e2a 100644
--- a/Custom-Post-Processing-Scripts.md
+++ b/Custom-Post-Processing-Scripts.md
@@ -27,7 +27,8 @@ Lidarr can execute a custom script when new albums are imported or a artist is r
 | lidarr_download_client | The client the torrent/NZB was passed to |
 | lidarr_download_id | The hash of the torrent/NZB file downloaded (used to uniquely identify the download in the download client) |
 
-##### On Download/On Upgrade #####
+
+##### On Album Download #####
 
 | Environment Variable | Details |
 |---|---|
@@ -57,6 +58,24 @@ Lidarr can execute a custom script when new albums are imported or a artist is r
 | lidarr_download_client | The client the torrent/NZB was passed to |
 | lidarr_download_id | The hash of the torrent/NZB file downloaded (used to uniquely identify the download in the download client) |
 
+##### On Track Download/On Upgrade #####
+
+| Environment Variable | Details |
+|---|---|
+| lidarr_eventtype | Download |
+| lidarr_artist_id | Internal ID of the artist |
+| lidarr_artist_name | Name of the artist |
+| lidarr_artist_path | Full path to the artist |
+| lidarr_artist_mbid | MusicBrainz ID for the artist |
+| lidarr_artist_type | Type of the artist, Person, Group, etc. |
+| lidarr_album_title | Title of the downloaded album. |
+| lidarr_addedrelativepaths | Pipe (`\|`) separated list of files that were added to import this file |
+| lidarr_addedpaths| Pipe (`\|`) separated list of full paths for files that were added to import this file |
+| lidarr_deletedrelativepaths | Pipe (`\|`) separated list of files that were deleted to import this file |
+| lidarr_deletedpaths| Pipe (`\|`) separated list of full paths for files that were deleted to import this file |
+| lidarr_download_client | The client the torrent/NZB was passed to |
+| lidarr_download_id | The hash of the torrent/NZB file downloaded (used to uniquely identify the download in the download client) |
+
 ##### On Rename #####
 
 | Environment Variable | Details |