diff --git a/.azure/pipelines/ci-public.yml b/.azure/pipelines/ci-public.yml
index 275bddb82851..9a278e2460f1 100644
--- a/.azure/pipelines/ci-public.yml
+++ b/.azure/pipelines/ci-public.yml
@@ -97,6 +97,8 @@ stages:
       jobName: Code_check
       jobDisplayName: Code check
       agentOs: Windows
+      # Need full history for git log comparison in CodeCheck.ps1
+      fetchDepth: 0
       steps:
       - powershell: ./eng/scripts/CodeCheck.ps1 -ci $(_InternalRuntimeDownloadArgs)
         displayName: Run eng/scripts/CodeCheck.ps1
diff --git a/.azure/pipelines/ci.yml b/.azure/pipelines/ci.yml
index f922c40bd2ca..c67d1c5f08c4 100644
--- a/.azure/pipelines/ci.yml
+++ b/.azure/pipelines/ci.yml
@@ -162,6 +162,8 @@ extends:
             jobName: Code_check
             jobDisplayName: Code check
             agentOs: Windows
+            # Need full history for git log comparison in CodeCheck.ps1
+            fetchDepth: 0
             steps:
             - powershell: ./eng/scripts/CodeCheck.ps1 -ci $(_InternalRuntimeDownloadArgs)
               displayName: Run eng/scripts/CodeCheck.ps1
diff --git a/.azure/pipelines/jobs/default-build.yml b/.azure/pipelines/jobs/default-build.yml
index 9588b1d6196c..2217c98cc2b8 100644
--- a/.azure/pipelines/jobs/default-build.yml
+++ b/.azure/pipelines/jobs/default-build.yml
@@ -71,6 +71,9 @@ parameters:
   timeoutInMinutes: 180
   testRunTitle: $(AgentOsName)-$(BuildConfiguration)
   useHostedUbuntu: true
+  # Checkout optimization parameters
+  fetchDepth: 1
+  fetchTags: false
 
   # We need longer than the default amount of 5 minutes to upload our logs/artifacts. (We currently take around 5 mins in the best case).
   # This makes sure we have time to upload everything in the case of a build timeout - really important for investigating a build
@@ -168,6 +171,8 @@ jobs:
           displayName: Use XCode 16.4.0
       - checkout: self
         clean: true
+        fetchDepth: ${{ parameters.fetchDepth }}
+        fetchTags: ${{ parameters.fetchTags }}
       - ${{ if and(eq(parameters.agentOs, 'Windows'), eq(parameters.isAzDOTestingJob, true)) }}:
         - powershell: ./eng/scripts/InstallProcDump.ps1
           displayName: Install ProcDump
@@ -395,6 +400,8 @@ jobs:
           displayName: Use XCode 16.4.0
       - checkout: self
         clean: true
+        fetchDepth: ${{ parameters.fetchDepth }}
+        fetchTags: ${{ parameters.fetchTags }}
       - ${{ if and(eq(parameters.agentOs, 'Windows'), eq(parameters.isAzDOTestingJob, true)) }}:
         - powershell: ./eng/scripts/InstallProcDump.ps1
           displayName: Install ProcDump