diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7733700e..52b46e387 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,8 @@ The changelog for `IGListKit`. Also see the [releases](https://github.com/instag
 
 - Removed `allowsBackgroundReloading` from `IGListAdapterUpdater` because it's causing performance issues and other bugs. [Maxime Ollivier](https://github.com/maxolls) (tbd)
 
+- Introducing `allowsBackgroundDiffing` on `IGListAdapterUpdater`! This property lets the updater perform the diffing on a background thread. Originally introduced by Ryan Nystrom a while back. [Maxime Ollivier](https://github.com/maxolls) (tbd)
+
 ### Enhancements
 
 - Added `shouldSelectItemAtIndex:` to `IGListSectionController` . [dirtmelon](https://github.com/dirtmelon)
diff --git a/Source/IGListDiffKit/IGListExperiments.h b/Source/IGListDiffKit/IGListExperiments.h
index 7d4078a62..f0446f7d5 100644
--- a/Source/IGListDiffKit/IGListExperiments.h
+++ b/Source/IGListDiffKit/IGListExperiments.h
@@ -16,14 +16,12 @@ NS_SWIFT_NAME(ListExperiment)
 typedef NS_OPTIONS (NSInteger, IGListExperiment) {
     /// Specifies no experiments.
     IGListExperimentNone = 1 << 1,
-    /// Test updater diffing performed on a background queue.
-    IGListExperimentBackgroundDiffing = 1 << 2,
     /// Test invalidating layout when cell reloads/updates in IGListBindingSectionController.
-    IGListExperimentInvalidateLayoutForUpdates = 1 << 3,
+    IGListExperimentInvalidateLayoutForUpdates = 1 << 2,
     /// Test skipping performBatchUpdate if we don't have any updates.
-    IGListExperimentSkipPerformUpdateIfPossible = 1 << 4,
+    IGListExperimentSkipPerformUpdateIfPossible = 1 << 3,
     /// Test skipping creating {view : section controller} map, which has inconsistency issue.
-    IGListExperimentSkipViewSectionControllerMap = 1 << 5
+    IGListExperimentSkipViewSectionControllerMap = 1 << 4
 };
 
 /**
diff --git a/Source/IGListKit/IGListAdapterUpdater.h b/Source/IGListKit/IGListAdapterUpdater.h
index ae80538e2..924fd1ede 100644
--- a/Source/IGListKit/IGListAdapterUpdater.h
+++ b/Source/IGListKit/IGListAdapterUpdater.h
@@ -69,6 +69,13 @@ NS_SWIFT_NAME(ListAdapterUpdater)
  */
 @property (nonatomic, assign) BOOL allowsReloadingOnTooManyUpdates;
 
+/**
+ Allow the diffing to be performed on a background thread.
+
+ Default is NO.
+ */
+@property (nonatomic, assign) BOOL allowsBackgroundDiffing;
+
 /**
  A bitmask of experiments to conduct on the updater.
  */
diff --git a/Source/IGListKit/IGListAdapterUpdater.m b/Source/IGListKit/IGListAdapterUpdater.m
index fe140d7b8..03036ff05 100644
--- a/Source/IGListKit/IGListAdapterUpdater.m
+++ b/Source/IGListKit/IGListAdapterUpdater.m
@@ -90,6 +90,7 @@ - (void)update {
         .singleItemSectionUpdates = _singleItemSectionUpdates,
         .preferItemReloadsForSectionReloads = _preferItemReloadsForSectionReloads,
         .allowsReloadingOnTooManyUpdates = _allowsReloadingOnTooManyUpdates,
+        .allowsBackgroundDiffing = _allowsBackgroundDiffing,
         .experiments = _experiments,
     };
 
diff --git a/Source/IGListKit/Internal/IGListAdapterUpdater+DebugDescription.m b/Source/IGListKit/Internal/IGListAdapterUpdater+DebugDescription.m
index 3c8b1f449..18871d302 100644
--- a/Source/IGListKit/Internal/IGListAdapterUpdater+DebugDescription.m
+++ b/Source/IGListKit/Internal/IGListAdapterUpdater+DebugDescription.m
@@ -22,7 +22,8 @@ @implementation IGListAdapterUpdater (DebugDescription)
         [NSString stringWithFormat:@"sectionMovesAsDeletesInserts: %@", IGListDebugBOOL(self.sectionMovesAsDeletesInserts)],
         [NSString stringWithFormat:@"singleItemSectionUpdates: %@", IGListDebugBOOL(self.singleItemSectionUpdates)],
         [NSString stringWithFormat:@"preferItemReloadsForSectionReloads: %@", IGListDebugBOOL(self.preferItemReloadsForSectionReloads)],
-        [NSString stringWithFormat:@"allowsReloadingOnTooManyUpdates: %@", IGListDebugBOOL(self.allowsReloadingOnTooManyUpdates)]
+        [NSString stringWithFormat:@"allowsReloadingOnTooManyUpdates: %@", IGListDebugBOOL(self.allowsReloadingOnTooManyUpdates)],
+        [NSString stringWithFormat:@"allowsBackgroundDiffing: %@", IGListDebugBOOL(self.allowsBackgroundDiffing)]
     ];
     [debug addObjectsFromArray:IGListDebugIndentedLines(options)];
 
diff --git a/Source/IGListKit/Internal/IGListBatchUpdateTransaction.m b/Source/IGListKit/Internal/IGListBatchUpdateTransaction.m
index 927e10dc1..7c5611e56 100644
--- a/Source/IGListKit/Internal/IGListBatchUpdateTransaction.m
+++ b/Source/IGListKit/Internal/IGListBatchUpdateTransaction.m
@@ -102,7 +102,7 @@ - (void)_diff {
     IGListTransitionData *data = self.sectionData;
     [self.delegate listAdapterUpdater:self.updater willDiffFromObjects:data.fromObjects toObjects:data.toObjects];
 
-    const BOOL onBackground = IGListExperimentEnabled(self.config.experiments, IGListExperimentBackgroundDiffing);
+    const BOOL onBackground = self.config.allowsBackgroundDiffing;
     if (onBackground) {
         __weak __typeof__(self) weakSelf = self;
         dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0), ^{
diff --git a/Source/IGListKit/Internal/IGListUpdateTransactable.h b/Source/IGListKit/Internal/IGListUpdateTransactable.h
index 9e3d1b031..3f4ec3908 100644
--- a/Source/IGListKit/Internal/IGListUpdateTransactable.h
+++ b/Source/IGListKit/Internal/IGListUpdateTransactable.h
@@ -20,6 +20,7 @@ typedef struct {
     BOOL singleItemSectionUpdates;
     BOOL preferItemReloadsForSectionReloads;
     BOOL allowsReloadingOnTooManyUpdates;
+    BOOL allowsBackgroundDiffing;
     IGListExperiment experiments;
 } IGListUpdateTransactationConfig;
 
diff --git a/Tests/IGListAdapterE2ETests.m b/Tests/IGListAdapterE2ETests.m
index 31da8cff0..15f49935e 100644
--- a/Tests/IGListAdapterE2ETests.m
+++ b/Tests/IGListAdapterE2ETests.m
@@ -2377,7 +2377,7 @@ - (void)test_whenSchedulingItemUpdate_thenChangeDataSource_thatLastestDataIsAppl
 
 - (void)test_whenSchedulingSectionUpdate_thenBeginDiffing_thenChangeCollectionView_thatLastestDataIsApplied {
     IGListAdapterUpdater *updater = (IGListAdapterUpdater *)self.updater;
-    updater.experiments |= IGListExperimentBackgroundDiffing;
+    updater.allowsBackgroundDiffing = YES;
 
     [self setupWithObjects:@[
         genTestObject(@0, @"Foo")
@@ -2437,7 +2437,7 @@ - (void)test_whenSchedulingSectionUpdate_thenBeginDiffing_thenChangeCollectionVi
 
 - (void)test_whenSchedulingSectionUpdate_thenBeginDiffing_thenChangeTheDataSource_thatLastestDataIsApplied {
     IGListAdapterUpdater *updater = (IGListAdapterUpdater *)self.updater;
-    updater.experiments |= IGListExperimentBackgroundDiffing;
+    updater.allowsBackgroundDiffing = YES;
 
     [self setupWithObjects:@[
         genTestObject(@0, @"Foo")
diff --git a/Tests/IGListAdapterUpdaterTests.m b/Tests/IGListAdapterUpdaterTests.m
index e64cd1cc4..a69b1a6ad 100644
--- a/Tests/IGListAdapterUpdaterTests.m
+++ b/Tests/IGListAdapterUpdaterTests.m
@@ -868,7 +868,7 @@ - (void)test_whenPerformingUpdatesMultipleTimesInARow_thenUpdateWorks {
 }
 
 - (void)test_whenPerformingUpdate_thatCallsDiffingDelegate {
-    self.updater.experiments |= IGListExperimentBackgroundDiffing;
+    self.updater.allowsBackgroundDiffing = YES;
 
     NSArray *from = @[
         [IGSectionObject sectionWithObjects:@[] identifier:@"0"]