diff --git a/tests/baselines/reference/logicalAssignment4(target=es2015).errors.txt b/tests/baselines/reference/logicalAssignment4(target=es2015).errors.txt
index 939c5699f6a..b8f87f62ca1 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).errors.txt
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).errors.txt
@@ -16,7 +16,7 @@ tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts(25,21): e
     }
     
     function foo4(results: number[] | undefined) {
-        results ||= [];
+        results ??= [];
         results.push(100);
     }
     
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2015).js b/tests/baselines/reference/logicalAssignment4(target=es2015).js
index 1a69ceeb70a..187ca2ed475 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).js
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).js
@@ -13,7 +13,7 @@ function foo3(results: number[] | undefined) {
 }
 
 function foo4(results: number[] | undefined) {
-    results ||= [];
+    results ??= [];
     results.push(100);
 }
 
@@ -40,7 +40,7 @@ function foo3(results) {
     results.push(100);
 }
 function foo4(results) {
-    results || (results = []);
+    results !== null && results !== void 0 ? results : (results = []);
     results.push(100);
 }
 function doSomethingWithAlias(thing) {
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2015).symbols b/tests/baselines/reference/logicalAssignment4(target=es2015).symbols
index 4f25669f53e..8c8fdae296c 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).symbols
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).symbols
@@ -36,7 +36,7 @@ function foo4(results: number[] | undefined) {
 >foo4 : Symbol(foo4, Decl(logicalAssignment4.ts, 11, 1))
 >results : Symbol(results, Decl(logicalAssignment4.ts, 13, 14))
 
-    results ||= [];
+    results ??= [];
 >results : Symbol(results, Decl(logicalAssignment4.ts, 13, 14))
 
     results.push(100);
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2015).types b/tests/baselines/reference/logicalAssignment4(target=es2015).types
index a2669aa6f28..337f639d502 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).types
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).types
@@ -50,8 +50,8 @@ function foo4(results: number[] | undefined) {
 >foo4 : (results: number[] | undefined) => void
 >results : number[] | undefined
 
-    results ||= [];
->results ||= [] : number[]
+    results ??= [];
+>results ??= [] : number[]
 >results : number[] | undefined
 >[] : never[]
 
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2020).errors.txt b/tests/baselines/reference/logicalAssignment4(target=es2020).errors.txt
index 939c5699f6a..b8f87f62ca1 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).errors.txt
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).errors.txt
@@ -16,7 +16,7 @@ tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts(25,21): e
     }
     
     function foo4(results: number[] | undefined) {
-        results ||= [];
+        results ??= [];
         results.push(100);
     }
     
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2020).js b/tests/baselines/reference/logicalAssignment4(target=es2020).js
index f2dfaa8e3c9..3285cef381a 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).js
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).js
@@ -13,7 +13,7 @@ function foo3(results: number[] | undefined) {
 }
 
 function foo4(results: number[] | undefined) {
-    results ||= [];
+    results ??= [];
     results.push(100);
 }
 
@@ -40,7 +40,7 @@ function foo3(results) {
     results.push(100);
 }
 function foo4(results) {
-    results || (results = []);
+    results ?? (results = []);
     results.push(100);
 }
 function doSomethingWithAlias(thing) {
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2020).symbols b/tests/baselines/reference/logicalAssignment4(target=es2020).symbols
index 4f25669f53e..8c8fdae296c 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).symbols
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).symbols
@@ -36,7 +36,7 @@ function foo4(results: number[] | undefined) {
 >foo4 : Symbol(foo4, Decl(logicalAssignment4.ts, 11, 1))
 >results : Symbol(results, Decl(logicalAssignment4.ts, 13, 14))
 
-    results ||= [];
+    results ??= [];
 >results : Symbol(results, Decl(logicalAssignment4.ts, 13, 14))
 
     results.push(100);
diff --git a/tests/baselines/reference/logicalAssignment4(target=es2020).types b/tests/baselines/reference/logicalAssignment4(target=es2020).types
index a2669aa6f28..337f639d502 100644
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).types
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).types
@@ -50,8 +50,8 @@ function foo4(results: number[] | undefined) {
 >foo4 : (results: number[] | undefined) => void
 >results : number[] | undefined
 
-    results ||= [];
->results ||= [] : number[]
+    results ??= [];
+>results ??= [] : number[]
 >results : number[] | undefined
 >[] : never[]
 
diff --git a/tests/baselines/reference/logicalAssignment4(target=esnext).errors.txt b/tests/baselines/reference/logicalAssignment4(target=esnext).errors.txt
index 939c5699f6a..b8f87f62ca1 100644
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).errors.txt
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).errors.txt
@@ -16,7 +16,7 @@ tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts(25,21): e
     }
     
     function foo4(results: number[] | undefined) {
-        results ||= [];
+        results ??= [];
         results.push(100);
     }
     
diff --git a/tests/baselines/reference/logicalAssignment4(target=esnext).js b/tests/baselines/reference/logicalAssignment4(target=esnext).js
index b9c254e9778..d9610ca60d3 100644
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).js
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).js
@@ -13,7 +13,7 @@ function foo3(results: number[] | undefined) {
 }
 
 function foo4(results: number[] | undefined) {
-    results ||= [];
+    results ??= [];
     results.push(100);
 }
 
@@ -40,7 +40,7 @@ function foo3(results) {
     results.push(100);
 }
 function foo4(results) {
-    results ||= [];
+    results ??= [];
     results.push(100);
 }
 function doSomethingWithAlias(thing) {
diff --git a/tests/baselines/reference/logicalAssignment4(target=esnext).symbols b/tests/baselines/reference/logicalAssignment4(target=esnext).symbols
index 4f25669f53e..8c8fdae296c 100644
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).symbols
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).symbols
@@ -36,7 +36,7 @@ function foo4(results: number[] | undefined) {
 >foo4 : Symbol(foo4, Decl(logicalAssignment4.ts, 11, 1))
 >results : Symbol(results, Decl(logicalAssignment4.ts, 13, 14))
 
-    results ||= [];
+    results ??= [];
 >results : Symbol(results, Decl(logicalAssignment4.ts, 13, 14))
 
     results.push(100);
diff --git a/tests/baselines/reference/logicalAssignment4(target=esnext).types b/tests/baselines/reference/logicalAssignment4(target=esnext).types
index a2669aa6f28..337f639d502 100644
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).types
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).types
@@ -50,8 +50,8 @@ function foo4(results: number[] | undefined) {
 >foo4 : (results: number[] | undefined) => void
 >results : number[] | undefined
 
-    results ||= [];
->results ||= [] : number[]
+    results ??= [];
+>results ??= [] : number[]
 >results : number[] | undefined
 >[] : never[]
 
diff --git a/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts b/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts
index 3c35d94b336..2ad97ed1fa1 100644
--- a/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts
+++ b/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts
@@ -16,7 +16,7 @@ function foo3(results: number[] | undefined) {
 }
 
 function foo4(results: number[] | undefined) {
-    results ||= [];
+    results ??= [];
     results.push(100);
 }