diff --git a/dataframe-core.cabal b/dataframe-core.cabal
--- a/dataframe-core.cabal
+++ b/dataframe-core.cabal
@@ -1,6 +1,6 @@
 cabal-version:      3.4
 name:               dataframe-core
-version:            2.1.1.1
+version:            2.1.1.2
 synopsis:           Core data structures for the dataframe library.
 description:
     Minimal interchange-format types for the @dataframe@ ecosystem:
diff --git a/src/DataFrame/Core.hs b/src/DataFrame/Core.hs
--- a/src/DataFrame/Core.hs
+++ b/src/DataFrame/Core.hs
@@ -40,6 +40,9 @@
     -- * Expressions
     Expr,
     NamedExpr,
+    toNamedExpr,
+    toUExpr,
+    fromUExpr,
     eSize,
     prettyPrint,
     prettyPrintWidth,
@@ -89,8 +92,11 @@
     Expr,
     NamedExpr,
     eSize,
+    fromUExpr,
     prettyPrint,
     prettyPrintWidth,
+    toNamedExpr,
+    toUExpr,
  )
 import DataFrame.Internal.Row (
     Any,