diff --git a/test/built-ins/Temporal/Duration/prototype/round/roundingmode-invalid-string.js b/test/built-ins/Temporal/Duration/prototype/round/roundingmode-invalid-string.js
index e895dd70f0..1d4035489e 100644
--- a/test/built-ins/Temporal/Duration/prototype/round/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/Duration/prototype/round/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const duration = new Temporal.Duration(0, 0, 0, 0, 12, 34, 56, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => duration.round({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/Duration/prototype/toString/roundingmode-invalid-string.js b/test/built-ins/Temporal/Duration/prototype/toString/roundingmode-invalid-string.js
index f1015122ce..f7792f5381 100644
--- a/test/built-ins/Temporal/Duration/prototype/toString/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/Duration/prototype/toString/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const duration = new Temporal.Duration(0, 0, 0, 0, 12, 34, 56, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => duration.toString({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/Instant/prototype/round/roundingmode-invalid-string.js b/test/built-ins/Temporal/Instant/prototype/round/roundingmode-invalid-string.js
index a826b1e72e..5026ecad96 100644
--- a/test/built-ins/Temporal/Instant/prototype/round/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/Instant/prototype/round/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const instant = new Temporal.Instant(1_000_000_000_123_987_500n);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => instant.round({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/Instant/prototype/since/roundingmode-invalid-string.js b/test/built-ins/Temporal/Instant/prototype/since/roundingmode-invalid-string.js
index 27771f28e8..c43346f52b 100644
--- a/test/built-ins/Temporal/Instant/prototype/since/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/Instant/prototype/since/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.Instant(1_000_000_000_000_000_000n);
 const later = new Temporal.Instant(1_000_090_061_123_987_500n);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => later.since(earlier, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/Instant/prototype/toString/roundingmode-invalid-string.js b/test/built-ins/Temporal/Instant/prototype/toString/roundingmode-invalid-string.js
index 6bff72f3b3..9836da0958 100644
--- a/test/built-ins/Temporal/Instant/prototype/toString/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/Instant/prototype/toString/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const instant = new Temporal.Instant(1_000_000_000_123_987_500n);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => instant.toString({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/Instant/prototype/until/roundingmode-invalid-string.js b/test/built-ins/Temporal/Instant/prototype/until/roundingmode-invalid-string.js
index 82a212cafd..f27f7f3c4c 100644
--- a/test/built-ins/Temporal/Instant/prototype/until/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/Instant/prototype/until/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.Instant(1_000_000_000_000_000_000n);
 const later = new Temporal.Instant(1_000_090_061_123_987_500n);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => earlier.until(later, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainDate/prototype/since/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainDate/prototype/since/roundingmode-invalid-string.js
index 8aeeb56734..4977472469 100644
--- a/test/built-ins/Temporal/PlainDate/prototype/since/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainDate/prototype/since/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainDate(2000, 5, 2);
 const later = new Temporal.PlainDate(2001, 6, 3);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => later.since(earlier, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainDate/prototype/until/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainDate/prototype/until/roundingmode-invalid-string.js
index 9139e8c151..e3bcf1009d 100644
--- a/test/built-ins/Temporal/PlainDate/prototype/until/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainDate/prototype/until/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainDate(2000, 5, 2);
 const later = new Temporal.PlainDate(2001, 6, 3);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => earlier.until(later, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/round/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainDateTime/prototype/round/roundingmode-invalid-string.js
index 1a231aad4c..d3bb342bc2 100644
--- a/test/built-ins/Temporal/PlainDateTime/prototype/round/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainDateTime/prototype/round/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const datetime = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => datetime.round({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/since/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainDateTime/prototype/since/roundingmode-invalid-string.js
index 52f4b8fe3b..e03a49b93e 100644
--- a/test/built-ins/Temporal/PlainDateTime/prototype/since/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainDateTime/prototype/since/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 0, 0, 0);
 const later = new Temporal.PlainDateTime(2000, 5, 3, 13, 35, 57, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => later.since(earlier, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-invalid-string.js
index bc2e1e2c4a..efb96f17fb 100644
--- a/test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const datetime = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => datetime.toString({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/until/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainDateTime/prototype/until/roundingmode-invalid-string.js
index 47455e7a19..721116ba97 100644
--- a/test/built-ins/Temporal/PlainDateTime/prototype/until/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainDateTime/prototype/until/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 0, 0, 0);
 const later = new Temporal.PlainDateTime(2000, 5, 3, 13, 35, 57, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => earlier.until(later, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainTime/prototype/round/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainTime/prototype/round/roundingmode-invalid-string.js
index ba3fa48a7e..d42e651d4e 100644
--- a/test/built-ins/Temporal/PlainTime/prototype/round/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainTime/prototype/round/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const time = new Temporal.PlainTime(12, 34, 56, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => time.round({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainTime/prototype/since/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainTime/prototype/since/roundingmode-invalid-string.js
index 623d946371..5bc78c8fa7 100644
--- a/test/built-ins/Temporal/PlainTime/prototype/since/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainTime/prototype/since/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainTime(12, 34, 56, 0, 0, 0);
 const later = new Temporal.PlainTime(13, 35, 57, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => later.since(earlier, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-invalid-string.js
index c66d624740..668520aa65 100644
--- a/test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const time = new Temporal.PlainTime(12, 34, 56, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => time.toString({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainTime/prototype/until/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainTime/prototype/until/roundingmode-invalid-string.js
index 1b2aa526d1..a5d598c7f4 100644
--- a/test/built-ins/Temporal/PlainTime/prototype/until/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainTime/prototype/until/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainTime(12, 34, 56, 0, 0, 0);
 const later = new Temporal.PlainTime(13, 35, 57, 123, 987, 500);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => earlier.until(later, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/since/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainYearMonth/prototype/since/roundingmode-invalid-string.js
index ae3e9de8e3..b93b5deebf 100644
--- a/test/built-ins/Temporal/PlainYearMonth/prototype/since/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainYearMonth/prototype/since/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainYearMonth(2000, 5);
 const later = new Temporal.PlainYearMonth(2001, 6);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => later.since(earlier, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/until/roundingmode-invalid-string.js b/test/built-ins/Temporal/PlainYearMonth/prototype/until/roundingmode-invalid-string.js
index d5f8d9884f..94339dbe09 100644
--- a/test/built-ins/Temporal/PlainYearMonth/prototype/until/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/PlainYearMonth/prototype/until/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.PlainYearMonth(2000, 5);
 const later = new Temporal.PlainYearMonth(2001, 6);
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => earlier.until(later, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/round/roundingmode-invalid-string.js b/test/built-ins/Temporal/ZonedDateTime/prototype/round/roundingmode-invalid-string.js
index b5b58bc40d..980636199f 100644
--- a/test/built-ins/Temporal/ZonedDateTime/prototype/round/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/round/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const datetime = new Temporal.ZonedDateTime(1_000_000_000_123_987_500n, "UTC");
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => datetime.round({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/since/roundingmode-invalid-string.js b/test/built-ins/Temporal/ZonedDateTime/prototype/since/roundingmode-invalid-string.js
index c749232dcd..9433755af6 100644
--- a/test/built-ins/Temporal/ZonedDateTime/prototype/since/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/since/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.ZonedDateTime(1_000_000_000_000_000_000n, "UTC");
 const later = new Temporal.ZonedDateTime(1_000_090_061_123_987_500n, "UTC");
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => later.since(earlier, { smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/toString/roundingmode-invalid-string.js b/test/built-ins/Temporal/ZonedDateTime/prototype/toString/roundingmode-invalid-string.js
index 50b223237c..b83be4d491 100644
--- a/test/built-ins/Temporal/ZonedDateTime/prototype/toString/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/toString/roundingmode-invalid-string.js
@@ -8,6 +8,6 @@ features: [Temporal]
 ---*/
 
 const datetime = new Temporal.ZonedDateTime(1_000_000_000_123_987_500n, "UTC");
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => datetime.toString({ smallestUnit: "microsecond", roundingMode }));
 }
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/until/roundingmode-invalid-string.js b/test/built-ins/Temporal/ZonedDateTime/prototype/until/roundingmode-invalid-string.js
index 3cedb0046d..4a353d4127 100644
--- a/test/built-ins/Temporal/ZonedDateTime/prototype/until/roundingmode-invalid-string.js
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/until/roundingmode-invalid-string.js
@@ -9,6 +9,6 @@ features: [Temporal]
 
 const earlier = new Temporal.ZonedDateTime(1_000_000_000_000_000_000n, "UTC");
 const later = new Temporal.ZonedDateTime(1_000_090_061_123_987_500n, "UTC");
-for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "expand", "halfCeil", "halfFloor", "halfTrunc", "halfEven", "halfexpand", "floor\0"]) {
+for (const roundingMode of ["other string", "cile", "CEIL", "ce\u0131l", "auto", "halfexpand", "floor\0"]) {
   assert.throws(RangeError, () => earlier.until(later, { smallestUnit: "microsecond", roundingMode }));
 }