diff --git a/quic/core/quic_versions_test.cc b/quic/core/quic_versions_test.cc
index f6223e7..99f4eb4 100644
--- a/quic/core/quic_versions_test.cc
+++ b/quic/core/quic_versions_test.cc
@@ -116,8 +116,6 @@
             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '3', '9')));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_43),
             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '3')));
-  EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_44),
-            ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '4')));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46),
             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '6')));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47),
@@ -130,8 +128,6 @@
             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '3', '9')));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_43),
             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '3')));
-  EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_44),
-            ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '4')));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_46),
             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '6')));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47),
@@ -145,8 +141,6 @@
             ParseQuicVersionString("Q039"));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_43),
             ParseQuicVersionString("Q043"));
-  EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_44),
-            ParseQuicVersionString("Q044"));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46),
             ParseQuicVersionString("Q046"));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47),
@@ -164,8 +158,6 @@
             ParseQuicVersionString("T039"));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_43),
             ParseQuicVersionString("T043"));
-  EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_44),
-            ParseQuicVersionString("T044"));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_46),
             ParseQuicVersionString("T046"));
   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47),
@@ -181,9 +173,6 @@
   EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '3'),
             CreateQuicVersionLabel(
                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_43)));
-  EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '4'),
-            CreateQuicVersionLabel(
-                ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_44)));
   EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '6'),
             CreateQuicVersionLabel(
                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46)));
@@ -201,9 +190,6 @@
   EXPECT_EQ(MakeVersionLabel('T', '0', '4', '3'),
             CreateQuicVersionLabel(
                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_43)));
-  EXPECT_EQ(MakeVersionLabel('T', '0', '4', '4'),
-            CreateQuicVersionLabel(
-                ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_44)));
   EXPECT_EQ(MakeVersionLabel('T', '0', '4', '6'),
             CreateQuicVersionLabel(
                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_46)));
@@ -308,7 +294,6 @@
 TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsAllVersions) {
   QuicTransportVersionVector all_versions = AllSupportedTransportVersions();
   SetQuicReloadableFlag(quic_disable_version_39, false);
-  SetQuicReloadableFlag(quic_disable_version_44, false);
   SetQuicReloadableFlag(quic_enable_version_47, true);
   SetQuicReloadableFlag(quic_enable_version_48_2, true);
   SetQuicReloadableFlag(quic_enable_version_99, true);
@@ -317,8 +302,8 @@
     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version));
   }
   QuicTransportVersionVector expected_versions = {
-      QUIC_VERSION_99, QUIC_VERSION_48, QUIC_VERSION_47, QUIC_VERSION_46,
-      QUIC_VERSION_44, QUIC_VERSION_43, QUIC_VERSION_39};
+      QUIC_VERSION_99, QUIC_VERSION_48, QUIC_VERSION_47,
+      QUIC_VERSION_46, QUIC_VERSION_43, QUIC_VERSION_39};
   ParsedQuicVersionVector expected_parsed_versions;
   for (QuicTransportVersion version : expected_versions) {
     expected_parsed_versions.push_back(
@@ -332,7 +317,6 @@
 TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo99) {
   QuicTransportVersionVector all_versions = AllSupportedTransportVersions();
   SetQuicReloadableFlag(quic_disable_version_39, false);
-  SetQuicReloadableFlag(quic_disable_version_44, false);
   SetQuicReloadableFlag(quic_enable_version_47, true);
   SetQuicReloadableFlag(quic_enable_version_48_2, true);
   SetQuicReloadableFlag(quic_enable_version_99, false);
@@ -341,8 +325,8 @@
     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version));
   }
   QuicTransportVersionVector expected_versions = {
-      QUIC_VERSION_48, QUIC_VERSION_47, QUIC_VERSION_46,
-      QUIC_VERSION_44, QUIC_VERSION_43, QUIC_VERSION_39};
+      QUIC_VERSION_48, QUIC_VERSION_47, QUIC_VERSION_46, QUIC_VERSION_43,
+      QUIC_VERSION_39};
   ParsedQuicVersionVector expected_parsed_versions;
   for (QuicTransportVersion version : expected_versions) {
     expected_parsed_versions.push_back(
@@ -356,7 +340,6 @@
 TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo48) {
   QuicTransportVersionVector all_versions = AllSupportedTransportVersions();
   SetQuicReloadableFlag(quic_disable_version_39, false);
-  SetQuicReloadableFlag(quic_disable_version_44, false);
   SetQuicReloadableFlag(quic_enable_version_47, true);
   SetQuicReloadableFlag(quic_enable_version_48_2, false);
   SetQuicReloadableFlag(quic_enable_version_99, false);
@@ -365,8 +348,7 @@
     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version));
   }
   QuicTransportVersionVector expected_versions = {
-      QUIC_VERSION_47, QUIC_VERSION_46, QUIC_VERSION_44, QUIC_VERSION_43,
-      QUIC_VERSION_39};
+      QUIC_VERSION_47, QUIC_VERSION_46, QUIC_VERSION_43, QUIC_VERSION_39};
   ParsedQuicVersionVector expected_parsed_versions;
   for (QuicTransportVersion version : expected_versions) {
     expected_parsed_versions.push_back(
@@ -380,30 +362,6 @@
 TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo47) {
   QuicTransportVersionVector all_versions = AllSupportedTransportVersions();
   SetQuicReloadableFlag(quic_disable_version_39, false);
-  SetQuicReloadableFlag(quic_disable_version_44, false);
-  SetQuicReloadableFlag(quic_enable_version_47, false);
-  SetQuicReloadableFlag(quic_enable_version_48_2, false);
-  SetQuicReloadableFlag(quic_enable_version_99, false);
-  ParsedQuicVersionVector parsed_versions;
-  for (QuicTransportVersion version : all_versions) {
-    parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version));
-  }
-  QuicTransportVersionVector expected_versions = {
-      QUIC_VERSION_46, QUIC_VERSION_44, QUIC_VERSION_43, QUIC_VERSION_39};
-  ParsedQuicVersionVector expected_parsed_versions;
-  for (QuicTransportVersion version : expected_versions) {
-    expected_parsed_versions.push_back(
-        ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version));
-  }
-
-  ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions));
-  ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions));
-}
-
-TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo44) {
-  QuicTransportVersionVector all_versions = AllSupportedTransportVersions();
-  SetQuicReloadableFlag(quic_disable_version_39, false);
-  SetQuicReloadableFlag(quic_disable_version_44, true);
   SetQuicReloadableFlag(quic_enable_version_47, false);
   SetQuicReloadableFlag(quic_enable_version_48_2, false);
   SetQuicReloadableFlag(quic_enable_version_99, false);
@@ -426,7 +384,6 @@
 TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo39) {
   QuicTransportVersionVector all_versions = AllSupportedTransportVersions();
   SetQuicReloadableFlag(quic_disable_version_39, true);
-  SetQuicReloadableFlag(quic_disable_version_44, false);
   SetQuicReloadableFlag(quic_enable_version_47, false);
   SetQuicReloadableFlag(quic_enable_version_48_2, false);
   SetQuicReloadableFlag(quic_enable_version_99, false);
@@ -434,8 +391,8 @@
   for (QuicTransportVersion version : all_versions) {
     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version));
   }
-  QuicTransportVersionVector expected_versions = {
-      QUIC_VERSION_46, QUIC_VERSION_44, QUIC_VERSION_43};
+  QuicTransportVersionVector expected_versions = {QUIC_VERSION_46,
+                                                  QUIC_VERSION_43};
   ParsedQuicVersionVector expected_parsed_versions;
   for (QuicTransportVersion version : expected_versions) {
     expected_parsed_versions.push_back(
@@ -485,11 +442,10 @@
 // yet a typo was made in doing the #defines and it was caught
 // only in some test far removed from here... Better safe than sorry.
 TEST_F(QuicVersionsTest, CheckVersionNumbersForTypos) {
-  static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u,
+  static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 6u,
                 "Supported versions out of sync");
   EXPECT_EQ(QUIC_VERSION_39, 39);
   EXPECT_EQ(QUIC_VERSION_43, 43);
-  EXPECT_EQ(QUIC_VERSION_44, 44);
   EXPECT_EQ(QUIC_VERSION_46, 46);
   EXPECT_EQ(QUIC_VERSION_47, 47);
   EXPECT_EQ(QUIC_VERSION_48, 48);
@@ -554,7 +510,6 @@
       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_99);
   SetQuicFlag(FLAGS_quic_supports_tls_handshake, false);
   SetQuicReloadableFlag(quic_disable_version_39, false);
-  SetQuicReloadableFlag(quic_disable_version_44, false);
   SetQuicReloadableFlag(quic_enable_version_47, false);
   SetQuicReloadableFlag(quic_enable_version_48_2, false);
   SetQuicReloadableFlag(quic_enable_version_99, false);