From cdf4bd920942cf28b6a12f5a6c2527cefea42bd2 Mon Sep 17 00:00:00 2001
From: "Dustin L. Howett" <duhowett@microsoft.com>
Date: Thu, 29 Jan 2026 17:01:45 -0600
Subject: [PATCH] Revert "Disable PGO for nightly builds (#17749)" (#19816)

This reverts commit 408f3e2bfd2b419afd5ea5bdd9e8242a9a9822c1.

Now that we have #19810, it works again!
---
 build/pipelines/ob-nightly.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/pipelines/ob-nightly.yml b/build/pipelines/ob-nightly.yml
index 63eba379d8..603593dca5 100644
--- a/build/pipelines/ob-nightly.yml
+++ b/build/pipelines/ob-nightly.yml
@@ -28,7 +28,7 @@ extends:
     official: true
     branding: Canary
     buildTerminal: true
-    pgoBuildMode: None # BODGY - OneBranch is on VS 17.10, which is known to be the worst
+    pgoBuildMode: Optimize
     codeSign: true
     signingIdentity:
       serviceName: $(SigningServiceName)