diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index 33fc2f651c6..694ab9a2b92 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -66,7 +66,7 @@ dependencies:
 - pandas
 - pandas>=2.0,<2.2.4dev0
 - pandoc
-- polars>=1.11,<1.15
+- polars>=1.11,<1.18
 - pre-commit
 - ptxcompiler
 - pyarrow>=14.0.0,<19.0.0a0
diff --git a/conda/environments/all_cuda-125_arch-x86_64.yaml b/conda/environments/all_cuda-125_arch-x86_64.yaml
index c290a83a37f..53bfa73fa4e 100644
--- a/conda/environments/all_cuda-125_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-125_arch-x86_64.yaml
@@ -64,7 +64,7 @@ dependencies:
 - pandas
 - pandas>=2.0,<2.2.4dev0
 - pandoc
-- polars>=1.11,<1.15
+- polars>=1.11,<1.18
 - pre-commit
 - pyarrow>=14.0.0,<19.0.0a0
 - pydata-sphinx-theme!=0.14.2
diff --git a/conda/recipes/cudf-polars/meta.yaml b/conda/recipes/cudf-polars/meta.yaml
index b6c03dc1bc2..9722e529b59 100644
--- a/conda/recipes/cudf-polars/meta.yaml
+++ b/conda/recipes/cudf-polars/meta.yaml
@@ -43,7 +43,7 @@ requirements:
   run:
     - python
     - pylibcudf ={{ version }}
-    - polars >=1.11,<1.15
+    - polars >=1.11,<1.18
     - {{ pin_compatible('cuda-version', max_pin='x', min_pin='x') }}
 
 test:
diff --git a/dependencies.yaml b/dependencies.yaml
index 7a83efc6e3d..47ac6c7c9cf 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -747,7 +747,7 @@ dependencies:
     common:
       - output_types: [conda, requirements, pyproject]
         packages:
-          - polars>=1.11,<1.15
+          - polars>=1.11,<1.18
   run_cudf_polars_experimental:
     common:
       - output_types: [conda, requirements, pyproject]
diff --git a/python/cudf_polars/cudf_polars/dsl/ir.py b/python/cudf_polars/cudf_polars/dsl/ir.py
index 1c1d4860eec..72539de37a7 100644
--- a/python/cudf_polars/cudf_polars/dsl/ir.py
+++ b/python/cudf_polars/cudf_polars/dsl/ir.py
@@ -34,9 +34,11 @@
 from cudf_polars.utils.versions import POLARS_VERSION_GT_112
 
 if TYPE_CHECKING:
-    from collections.abc import Callable, Hashable, MutableMapping, Sequence
+    from collections.abc import Callable, Hashable, Iterable, MutableMapping, Sequence
     from typing import Literal
 
+    from polars.polars import _expr_nodes as pl_expr
+
     from cudf_polars.typing import Schema
 
 
@@ -1019,7 +1021,27 @@ class ConditionalJoin(IR):
     __slots__ = ("ast_predicate", "options", "predicate")
     _non_child = ("schema", "predicate", "options")
     predicate: expr.Expr
-    options: tuple
+    """Expression predicate to join on"""
+    options: tuple[
+        tuple[
+            str,
+            pl_expr.Operator | Iterable[pl_expr.Operator],
+        ],
+        bool,
+        tuple[int, int] | None,
+        str,
+        bool,
+        Literal["none", "left", "right", "left_right", "right_left"],
+    ]
+    """
+    tuple of options:
+    - predicates: tuple of ir join type (eg. ie_join) and (In)Equality conditions
+    - join_nulls: do nulls compare equal?
+    - slice: optional slice to perform after joining.
+    - suffix: string suffix for right columns if names match
+    - coalesce: should key columns be coalesced (only makes sense for outer joins)
+    - maintain_order: which DataFrame row order to preserve, if any
+    """
 
     def __init__(
         self, schema: Schema, predicate: expr.Expr, options: tuple, left: IR, right: IR
@@ -1029,15 +1051,16 @@ def __init__(
         self.options = options
         self.children = (left, right)
         self.ast_predicate = to_ast(predicate)
-        _, join_nulls, zlice, suffix, coalesce = self.options
+        _, join_nulls, zlice, suffix, coalesce, maintain_order = self.options
         # Preconditions from polars
         assert not join_nulls
         assert not coalesce
+        assert maintain_order == "none"
         if self.ast_predicate is None:
             raise NotImplementedError(
                 f"Conditional join with predicate {predicate}"
             )  # pragma: no cover; polars never delivers expressions we can't handle
-        self._non_child_args = (self.ast_predicate, zlice, suffix)
+        self._non_child_args = (self.ast_predicate, zlice, suffix, maintain_order)
 
     @classmethod
     def do_evaluate(
@@ -1045,6 +1068,7 @@ def do_evaluate(
         predicate: plc.expressions.Expression,
         zlice: tuple[int, int] | None,
         suffix: str,
+        maintain_order: Literal["none", "left", "right", "left_right", "right_left"],
         left: DataFrame,
         right: DataFrame,
     ) -> DataFrame:
@@ -1088,6 +1112,7 @@ class Join(IR):
         tuple[int, int] | None,
         str,
         bool,
+        Literal["none", "left", "right", "left_right", "right_left"],
     ]
     """
     tuple of options:
@@ -1096,6 +1121,7 @@ class Join(IR):
     - slice: optional slice to perform after joining.
     - suffix: string suffix for right columns if names match
     - coalesce: should key columns be coalesced (only makes sense for outer joins)
+    - maintain_order: which DataFrame row order to preserve, if any
     """
 
     def __init__(
@@ -1222,12 +1248,14 @@ def do_evaluate(
             tuple[int, int] | None,
             str,
             bool,
+            Literal["none", "left", "right", "left_right", "right_left"],
         ],
         left: DataFrame,
         right: DataFrame,
     ) -> DataFrame:
         """Evaluate and return a dataframe."""
-        how, join_nulls, zlice, suffix, coalesce = options
+        how, join_nulls, zlice, suffix, coalesce, maintain_order = options
+        # TODO: Implement maintain_order param
         if how == "cross":
             # Separate implementation, since cross_join returns the
             # result, not the gather maps
diff --git a/python/cudf_polars/cudf_polars/dsl/translate.py b/python/cudf_polars/cudf_polars/dsl/translate.py
index 37cf36dc4dd..51fd3223c5b 100644
--- a/python/cudf_polars/cudf_polars/dsl/translate.py
+++ b/python/cudf_polars/cudf_polars/dsl/translate.py
@@ -84,7 +84,7 @@ def translate_ir(self, *, n: int | None = None) -> ir.IR:
         # IR is versioned with major.minor, minor is bumped for backwards
         # compatible changes (e.g. adding new nodes), major is bumped for
         # incompatible changes (e.g. renaming nodes).
-        if (version := self.visitor.version()) >= (4, 0):
+        if (version := self.visitor.version()) >= (4, 3):
             e = NotImplementedError(
                 f"No support for polars IR {version=}"
             )  # pragma: no cover; no such version for now.
diff --git a/python/cudf_polars/cudf_polars/testing/plugin.py b/python/cudf_polars/cudf_polars/testing/plugin.py
index 7a759eea2e9..0285c1b7b07 100644
--- a/python/cudf_polars/cudf_polars/testing/plugin.py
+++ b/python/cudf_polars/cudf_polars/testing/plugin.py
@@ -140,6 +140,22 @@ def pytest_configure(config: pytest.Config) -> None:
     "tests/unit/operations/arithmetic/test_list_arithmetic.py::test_list_arithmetic_values[func1-func1-none]": "cudf-polars doesn't nullify division by zero",
     "tests/unit/operations/arithmetic/test_list_arithmetic.py::test_list_arithmetic_values[func1-func2-none]": "cudf-polars doesn't nullify division by zero",
     "tests/unit/operations/arithmetic/test_list_arithmetic.py::test_list_arithmetic_values[func1-func3-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr-broadcast_left-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr-broadcast_right-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr-broadcast_both-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr-broadcast_none-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_left-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_right-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_both-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_array.py::test_array_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_none-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr-broadcast_left-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr-broadcast_right-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr-broadcast_both-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr-broadcast_none-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_left-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_right-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_both-none]": "cudf-polars doesn't nullify division by zero",
+    "tests/unit/operations/arithmetic/test_list.py::test_list_arithmetic_values[exec_op_with_expr_no_type_coercion-broadcast_none-none]": "cudf-polars doesn't nullify division by zero",
     "tests/unit/operations/test_abs.py::test_abs_duration": "Need to raise for unsupported uops on timelike values",
     "tests/unit/operations/test_group_by.py::test_group_by_mean_by_dtype[input7-expected7-Float32-Float32]": "Mismatching dtypes, needs cudf#15852",
     "tests/unit/operations/test_group_by.py::test_group_by_mean_by_dtype[input10-expected10-Date-output_dtype10]": "Unsupported groupby-agg for a particular dtype",
diff --git a/python/cudf_polars/pyproject.toml b/python/cudf_polars/pyproject.toml
index b781b13ec10..2b42a0fdaad 100644
--- a/python/cudf_polars/pyproject.toml
+++ b/python/cudf_polars/pyproject.toml
@@ -19,7 +19,7 @@ authors = [
 license = { text = "Apache 2.0" }
 requires-python = ">=3.10"
 dependencies = [
-    "polars>=1.11,<1.15",
+    "polars>=1.11,<1.18",
     "pylibcudf==25.2.*,>=0.0.0a0",
 ] # This list was generated by `rapids-dependency-file-generator`. To make changes, edit ../../dependencies.yaml and run `rapids-dependency-file-generator`.
 classifiers = [