diff --git a/plugins/dell-dock/dell-dock.quirk b/plugins/dell-dock/dell-dock.quirk
index 5ec659f5d..199d430f7 100644
--- a/plugins/dell-dock/dell-dock.quirk
+++ b/plugins/dell-dock/dell-dock.quirk
@@ -70,8 +70,8 @@ FirmwareSizeMax = 0x20000
 Flags = require-ac
 Children = FuDellDockStatus|USB\VID_413C&PID_B06E&hub&status,FuDellDockMst|MST-panamera-vmm5331-259
 DellDockUnlockTarget = 1
-DellDockBoardMin = 2
-DellDockVersionLowest = 00.00.00.09
+DellDockBoardMin = 4
+DellDockVersionLowest = 00.00.00.17
 DellDockBlobVersionOffset = 0x1AFC0
 InstallDuration = 60
 
@@ -114,14 +114,3 @@ FirmwareSizeMin=0x40000
 FirmwareSizeMax=0x80000
 Flags = require-ac
 InstallDuration = 22
-
-# Thunderbolt controller (old ID)
-# TODO: This should be dropped when DellDockBoardMin is 3+
-[Guid=TBT-00d40012]
-Name = Thunderbolt controller in Dell dock
-Summary = Thunderbolt controller
-Vendor = Dell Inc
-ParentGuid = USB\VID_413C&PID_B06E&hub&embedded
-FirmwareSizeMin=0x40000
-FirmwareSizeMax=0x80000
-Flags = require-ac,ignore-validation
diff --git a/plugins/dell-dock/fu-dell-dock-i2c-ec.c b/plugins/dell-dock/fu-dell-dock-i2c-ec.c
index 4ce22448d..70b95afba 100644
--- a/plugins/dell-dock/fu-dell-dock-i2c-ec.c
+++ b/plugins/dell-dock/fu-dell-dock-i2c-ec.c
@@ -529,7 +529,6 @@ fu_dell_dock_ec_reset (FuDevice *device, GError **error)
 gboolean
 fu_dell_dock_ec_reboot_dock (FuDevice *device, GError **error)
 {
-	FuDellDockEc *self = FU_DELL_DOCK_EC (device);
 	guint16 cmd = EC_CMD_REBOOT;
 
 	g_return_val_if_fail (device != NULL, FALSE);
@@ -539,10 +538,6 @@ fu_dell_dock_ec_reboot_dock (FuDevice *device, GError **error)
 		return TRUE;
 	}
 
-	/* TODO: Drop when bumping minimum EC version to 13+ */
-	if (fu_common_vercmp (self->ec_version, "00.00.00.13") < 0)
-		g_print ("\nEC Reboot API may fail on EC %s.  Please manually power cycle dock.\n",
-			   self->ec_version);
 	g_debug ("Rebooting %s", fu_device_get_name (device));
 
 	return fu_dell_dock_ec_write (device, 2, (guint8 *) &cmd, error);
@@ -634,13 +629,6 @@ fu_dell_dock_ec_commit_package (FuDevice *device, GBytes *blob_fw,
 	g_debug ("\ttbt_version: %x", self->raw_versions->tbt_version);
 	g_debug ("\tpkg_version: %x", self->raw_versions->pkg_version);
 
-	/* TODO: Drop when updating minimum EC to 11+ */
-	if (fu_common_vercmp (self->ec_version, "00.00.00.11") < 0) {
-		g_debug ("EC %s doesn't support package version, ignoring",
-			 self->ec_version);
-		return TRUE;
-	}
-
 	payload [0] = EC_CMD_SET_DOCK_PKG;
 	payload [1] = length;
 	memcpy (payload + 2, data, length);
diff --git a/plugins/dell-dock/fu-dell-dock-i2c-mst.c b/plugins/dell-dock/fu-dell-dock-i2c-mst.c
index 0fc07cfb4..5ceb848af 100644
--- a/plugins/dell-dock/fu-dell-dock-i2c-mst.c
+++ b/plugins/dell-dock/fu-dell-dock-i2c-mst.c
@@ -424,35 +424,6 @@ fu_d19_mst_check_fw (FuDevice *symbiote, GError **error)
 	return TRUE;
 }
 
-static gboolean
-fu_dell_dock_mst_get_version_direct (FuDevice *symbiote, gchar **version_out,
-				     GError **error)
-{
-	g_autoptr(GBytes) bytes = NULL;
-	const guint8 *data;
-	gsize length = 4;
-
-	g_return_val_if_fail (version_out != NULL, FALSE);
-
-	/* Try to read core MCU FW version */
-	if (!fu_dell_dock_mst_read_register (symbiote,
-					     MST_CORE_MCU_FW_VERSION,
-					     length, &bytes,
-					     error))
-		return FALSE;
-	data = g_bytes_get_data (bytes, &length);
-	if (length < 4) {
-		g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
-			     "Invalid MST result %" G_GSIZE_FORMAT, length);
-		return FALSE;
-	}
-	*version_out = g_strdup_printf ("%02x.%02x.%02x",
-					data[1],    /* major */
-					data[0],    /* minor */
-					data[2]);   /* build */
-	return TRUE;
-}
-
 static gboolean
 fu_dell_dock_mst_checksum_bank (FuDevice *symbiote,
 				GBytes *blob_fw,
@@ -923,7 +894,6 @@ fu_dell_dock_mst_setup (FuDevice *device, GError **error)
 	FuDellDockMst *self = FU_DELL_DOCK_MST (device);
 	FuDevice *parent;
 	const gchar *version;
-	g_autofree gchar *dynamic_version = NULL;
 
 	/* sanity check that we can talk to MST */
 	if (!fu_d19_mst_check_fw (self->symbiote, error))
@@ -933,14 +903,6 @@ fu_dell_dock_mst_setup (FuDevice *device, GError **error)
 	parent = fu_device_get_parent (device);
 	version = fu_dell_dock_ec_get_mst_version (parent);
 
-	/* TODO: Drop when we can guarantee EC 15+ */
-	if (version == NULL) {
-		if (!fu_dell_dock_mst_get_version_direct (self->symbiote,
-							  &dynamic_version,
-							  error))
-			return FALSE;
-		version = dynamic_version;
-	}
 	if (version != NULL)
 		fu_device_set_version (device, version);