diff --git a/src/Attr.cc b/src/Attr.cc
index 7e80736a31..66c82d0e06 100644
--- a/src/Attr.cc
+++ b/src/Attr.cc
@@ -300,7 +300,7 @@ void Attributes::Describe(ODesc* d) const
 
 	for ( size_t i = 0; i < attrs.size(); ++i )
 		{
-		if ( (d->IsReadable() || d->IsPortable()) && i > 0 )
+		if ( d->IsReadable() && i > 0 )
 			d->Add(", ");
 
 		attrs[i]->Describe(d);
diff --git a/src/Desc.cc b/src/Desc.cc
index 315c39abe5..e6e41f5f6f 100644
--- a/src/Desc.cc
+++ b/src/Desc.cc
@@ -22,10 +22,6 @@ namespace zeek
 
 ODesc::ODesc(DescType t, File* arg_f)
 	{
-	if ( t == DESC_PORTABLE )
-		zeek::reporter->Warning("Remove in v5.1. Use of DESC_PORTABLE \"Describe\" format is "
-		                        "deprecated and will be removed");
-
 	type = t;
 	style = STANDARD_STYLE;
 	f = arg_f;
diff --git a/src/Desc.h b/src/Desc.h
index 579a8e1c9f..a7dbb46be4 100644
--- a/src/Desc.h
+++ b/src/Desc.h
@@ -21,7 +21,6 @@ class Type;
 enum DescType
 	{
 	DESC_READABLE,
-	DESC_PORTABLE,
 	DESC_BINARY,
 	};
 
@@ -39,7 +38,6 @@ public:
 	~ODesc();
 
 	bool IsReadable() const { return type == DESC_READABLE; }
-	bool IsPortable() const { return type == DESC_PORTABLE; }
 	bool IsBinary() const { return type == DESC_BINARY; }
 
 	bool IsShort() const { return is_short; }
diff --git a/src/Expr.cc b/src/Expr.cc
index d495472a20..7f1d7ea40f 100644
--- a/src/Expr.cc
+++ b/src/Expr.cc
@@ -433,7 +433,7 @@ void Expr::Describe(ODesc* d) const
 	if ( IsParen() && ! d->IsBinary() )
 		d->Add("(");
 
-	if ( d->IsPortable() || d->IsBinary() )
+	if ( d->IsBinary() )
 		AddTag(d);
 
 	ExprDescribe(d);
@@ -571,12 +571,7 @@ void NameExpr::ExprDescribe(ODesc* d) const
 	if ( d->IsReadable() )
 		d->Add(id->Name());
 	else
-		{
-		if ( d->IsPortable() )
-			d->Add(id->Name());
-		else
-			d->AddCS(id->Name());
-		}
+		d->AddCS(id->Name());
 	}
 
 ConstExpr::ConstExpr(ValPtr arg_val) : Expr(EXPR_CONST), val(std::move(arg_val))
@@ -4683,7 +4678,7 @@ TraversalCode CallExpr::Traverse(TraversalCallback* cb) const
 void CallExpr::ExprDescribe(ODesc* d) const
 	{
 	func->Describe(d);
-	if ( d->IsReadable() || d->IsPortable() )
+	if ( d->IsReadable() )
 		{
 		d->Add("(");
 		args->Describe(d);
@@ -4968,7 +4963,7 @@ TraversalCode EventExpr::Traverse(TraversalCallback* cb) const
 void EventExpr::ExprDescribe(ODesc* d) const
 	{
 	d->Add(name.c_str());
-	if ( d->IsReadable() || d->IsPortable() )
+	if ( d->IsReadable() )
 		{
 		d->Add("(");
 		args->Describe(d);
@@ -5091,7 +5086,7 @@ void ListExpr::ExprDescribe(ODesc* d) const
 
 	loop_over_list(exprs, i)
 		{
-		if ( (d->IsReadable() || d->IsPortable()) && i > 0 )
+		if ( d->IsReadable() && i > 0 )
 			d->Add(", ");
 
 		exprs[i]->Describe(d);
diff --git a/src/Val.cc b/src/Val.cc
index fa37469038..71f60e58c5 100644
--- a/src/Val.cc
+++ b/src/Val.cc
@@ -272,7 +272,7 @@ bool Val::RemoveFrom(Val* v) const
 
 void Val::Describe(ODesc* d) const
 	{
-	if ( d->IsBinary() || d->IsPortable() )
+	if ( d->IsBinary() )
 		{
 		type->Describe(d);
 		d->SP();
@@ -1250,7 +1250,7 @@ TableValPtr ListVal::ToSetVal() const
 
 void ListVal::Describe(ODesc* d) const
 	{
-	if ( d->IsBinary() || d->IsPortable() )
+	if ( d->IsBinary() )
 		{
 		type->Describe(d);
 		d->SP();
@@ -1262,7 +1262,7 @@ void ListVal::Describe(ODesc* d) const
 		{
 		if ( i > 0u )
 			{
-			if ( d->IsReadable() || d->IsPortable() )
+			if ( d->IsReadable() )
 				{
 				d->Add(",");
 				d->SP();
@@ -2273,7 +2273,7 @@ void TableVal::Describe(ODesc* d) const
 	{
 	int n = table_val->Length();
 
-	if ( d->IsBinary() || d->IsPortable() )
+	if ( d->IsBinary() )
 		{
 		table_type->Describe(d);
 		d->SP();
@@ -2281,7 +2281,7 @@ void TableVal::Describe(ODesc* d) const
 		d->SP();
 		}
 
-	if ( d->IsPortable() || d->IsReadable() )
+	if ( d->IsReadable() )
 		{
 		d->Add("{");
 		d->PushIndent();
@@ -2379,7 +2379,7 @@ void TableVal::Describe(ODesc* d) const
 			}
 		}
 
-	if ( d->IsPortable() || d->IsReadable() )
+	if ( d->IsReadable() )
 		{
 		d->PopIndent();
 		d->Add("}");
@@ -2938,7 +2938,7 @@ void RecordVal::Describe(ODesc* d) const
 	{
 	auto n = record_val->size();
 
-	if ( d->IsBinary() || d->IsPortable() )
+	if ( d->IsBinary() )
 		{
 		rt->Describe(d);
 		d->SP();
diff --git a/src/script_opt/Expr.cc b/src/script_opt/Expr.cc
index 47eac78351..36a7a2267e 100644
--- a/src/script_opt/Expr.cc
+++ b/src/script_opt/Expr.cc
@@ -2677,7 +2677,7 @@ TraversalCode InlineExpr::Traverse(TraversalCallback* cb) const
 
 void InlineExpr::ExprDescribe(ODesc* d) const
 	{
-	if ( d->IsReadable() || d->IsPortable() )
+	if ( d->IsReadable() )
 		{
 		d->Add("inline(");
 		args->Describe(d);