diff --git a/Hidden-Figures.md b/Hidden-Figures.md
index 593ce1a..5c67f1f 100644
--- a/Hidden-Figures.md
+++ b/Hidden-Figures.md
@@ -94,14 +94,6 @@ In versions of Gravity Sync prior to 3.1, at execution, Gravity Sync would check
 
 - This variable is no longer parsed by Gravity Sync.
 
-### `BACKUP_RETAIN`
-
-The `./gravity-sync.sh` function will automatically backup and then delete any backups older than the defined number of days worth of `gravity.db` and `custom.list` backups. Setting this to `0` will cause all backups to be purged after the next successful sync job. 
-
-- Default setting in Gravity Sync is `3`, adjust as desired.
-- This variable can be set via `./gravity-sync.sh config` function.
-- As of version 3.4.6, running a manual `./gravity-sync.sh backup` will no longer remove old backup jobs.
-
 ### `BACKUP_TIMEOUT`
 
 Allow users to adjust the time the script will wait until marking the SQLITE3 backup operation as failed. This was previously hard coded to 15 and then raised to 60, but raising it even higher has been seen to mitigate against failed replication jobs on slower SD Cards or older Raspberry Pi's where the database backup does not complete, yet still replicates.