diff --git a/Make.config b/Make.config
index 495af0f07ffc..c4e72357526d 100644
--- a/Make.config
+++ b/Make.config
@@ -202,8 +202,8 @@ MACCATALYST_NUGET_VERSION_FULL=$(MACCATALYST_NUGET_VERSION_NO_METADATA)$(NUGET_B
 
 # Xcode version should have both a major and a minor version (even if the minor version is 0)
 XCODE_VERSION=26.1
-XCODE_URL=https://dl.internalx.com/internal-files/xcodes/Xcode_26.1_beta3.xip
-XCODE_DEVELOPER_ROOT=/Applications/Xcode_26.1.0-beta3.app/Contents/Developer
+XCODE_URL=https://dl.internalx.com/internal-files/xcodes/Xcode_26.1_Release_Candidate.xip
+XCODE_DEVELOPER_ROOT=/Applications/Xcode_26.1.0-rc.app/Contents/Developer
 XCODE_PRODUCT_BUILD_VERSION:=$(shell /usr/libexec/PlistBuddy -c 'Print :ProductBuildVersion' $(XCODE_DEVELOPER_ROOT)/../version.plist 2>/dev/null || echo "    $(shell tput setaf 1 2>/dev/null)The required Xcode ($(XCODE_VERSION)) is not installed in $(basename $(basename $(XCODE_DEVELOPER_ROOT)))$(shell tput sgr0 2>/dev/null)" >&2)
 
 # We define stable Xcode as the Xcode app being named like "Xcode_#.#[.#].app"
diff --git a/tests/cecil-tests/Documentation.KnownFailures.txt b/tests/cecil-tests/Documentation.KnownFailures.txt
index 4b676127c77f..ed0cd198a123 100644
--- a/tests/cecil-tests/Documentation.KnownFailures.txt
+++ b/tests/cecil-tests/Documentation.KnownFailures.txt
@@ -18463,9 +18463,6 @@ P:AppKit.NSPopUpButtonCell.Item(System.IntPtr)
 P:AppKit.NSPopUpButtonCell.Item(System.String)
 P:AppKit.NSRulerView.WeakMeasurementUnits
 P:AppKit.NSSavePanel.GetDisplayName
-P:AppKit.NSScrollEdgeEffectStyle.AutomaticStyle
-P:AppKit.NSScrollEdgeEffectStyle.HardStyle
-P:AppKit.NSScrollEdgeEffectStyle.SoftStyle
 P:AppKit.NSSharingServiceDidFailToShareItemsEventArgs.Error
 P:AppKit.NSSharingServiceDidFailToShareItemsEventArgs.Items
 P:AppKit.NSSharingServiceItemsEventArgs.Items
@@ -18475,7 +18472,6 @@ P:AppKit.NSSharingServicePickerToolbarItem.Delegate
 P:AppKit.NSSoundFinishedEventArgs.Finished
 P:AppKit.NSSpellChecker.IsAutomaticInlinePredictionEnabled
 P:AppKit.NSSplitViewItemAccessoryViewController.Hidden
-P:AppKit.NSSplitViewItemAccessoryViewController.PreferredScrollEdgeEffectStyle
 P:AppKit.NSTableView.UserCanChangeVisibility
 P:AppKit.NSTableViewCellEventArgs.Cell
 P:AppKit.NSTableViewCellEventArgs.Row
@@ -18533,7 +18529,6 @@ P:AppKit.NSTextViewDraggedCellEventArgs.TheEvent
 P:AppKit.NSTextViewportLayoutController.Delegate
 P:AppKit.NSTextViewWillChangeNotifyingTextViewEventArgs.NewView
 P:AppKit.NSTextViewWillChangeNotifyingTextViewEventArgs.OldView
-P:AppKit.NSTitlebarAccessoryViewController.PreferredScrollEdgeEffectStyle
 P:AppKit.NSToolbar.GetItemCanBeInsertedAt
 P:AppKit.NSToolbar.GetToolbarImmovableItemIdentifiers
 P:AppKit.NSToolbarItem.Hidden
@@ -25224,7 +25219,6 @@ T:AppKit.NSRunResponse
 T:AppKit.NSSaveOperationType
 T:AppKit.NSSavePanelComplete
 T:AppKit.NSScrollArrowPosition
-T:AppKit.NSScrollEdgeEffectStyle
 T:AppKit.NSScrollElasticity
 T:AppKit.NSScrollerArrow
 T:AppKit.NSScrollerKnobStyle