diff --git a/common-tasks/software-update-vm.md b/common-tasks/software-update-vm.md
index 06f49226..a34be8da 100644
--- a/common-tasks/software-update-vm.md
+++ b/common-tasks/software-update-vm.md
@@ -83,16 +83,29 @@ To enable or disable any of these repos permanently, uncomment the corresponding
 Reverting changes to a TemplateVM (R4.0)
 ---------------------------------
 
-Qubes 4.0 uses a CoW system that permits snapshotting.
-Reversion functionality is still being developed at the time of writing.
-See [issue #3256](https://github.com/QubesOS/qubes-issues/issues/3256) for details.
+Perhaps you've just updated your TemplateVM, and the update broke your template.
+Or perhaps you've made a terrible mistake, like accidentally confirming the installation of an unsigned package that could be malicious.
+Fortunately, it's easy to revert changes to TemplateVMs using the command appropriate to your version of Qubes.
+
+**Important:** This command will roll back any changes made *during the last time the TemplateVM was run, but **not** before.*
+This means that if you have already restarted the TemplateVM, using this command is unlikely to help, and you'll likely want to reinstall it from the repository instead.
+On the other hand, if the template is already broken or compromised, it won't hurt to try reverting first.
+Just make sure to **back up** all of your data and changes first!
+
+For example, to revert changes to the `fedora-26` TemplateVM:
+
+1. Shut down `fedora-26`.
+   If you've already just shut it down, do **not** start it again (see above).
+2. In a dom0 terminal, type:
+
+        qvm-volume revert fedora-26:root
 
 Reverting changes to a TemplateVM (R3.2)
 ---------------------------------
 
 Perhaps you've just updated your TemplateVM, and the update broke your template.
 Or perhaps you've made a terrible mistake, like accidentally confirming the installation of an unsigned package that could be malicious.
-Fortunately, it's easy to revert changes to TemplateVMs using the `qvm-revert-template-changes` command.
+Fortunately, it's easy to revert changes to TemplateVMs using the command appropriate to your version of Qubes.
 
 **Important:** This command will roll back any changes made *during the last time the TemplateVM was run, but **not** before.*
 This means that if you have already restarted the TemplateVM, using this command is unlikely to help, and you'll likely want to reinstall it from the repository instead.