From 9453eaa9a38f78e248526ddd996485140a5d4d9a Mon Sep 17 00:00:00 2001
From: Sean Hall <r.sean.hall@gmail.com>
Date: Sun, 13 Mar 2022 23:51:36 -0500
Subject: Make engine skip planning if there are any downgrade related bundles.

Fixes 6677, 6722
Reverts 6537
---
 src/api/burn/WixToolset.Mba.Core/IDefaultBootstrapperApplication.cs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/api/burn/WixToolset.Mba.Core/IDefaultBootstrapperApplication.cs')

diff --git a/src/api/burn/WixToolset.Mba.Core/IDefaultBootstrapperApplication.cs b/src/api/burn/WixToolset.Mba.Core/IDefaultBootstrapperApplication.cs
index ebd1580b..c9284b69 100644
--- a/src/api/burn/WixToolset.Mba.Core/IDefaultBootstrapperApplication.cs
+++ b/src/api/burn/WixToolset.Mba.Core/IDefaultBootstrapperApplication.cs
@@ -19,6 +19,11 @@ namespace WixToolset.Mba.Core
         /// </summary>
         event EventHandler<ApplyCompleteEventArgs> ApplyComplete;
 
+        /// <summary>
+        /// Fired when the plan determined that nothing should happen to prevent downgrading.
+        /// </summary>
+        event EventHandler<ApplyDowngradeEventArgs> ApplyDowngrade;
+
         /// <summary>
         /// Fired when the engine is about to begin an MSI transaction.
         /// </summary>
-- 
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