2 files changed, 2 insertions, 0 deletions
diff --git a/src/env.c b/src/env.c
index 3813391c..431fef41 100644
--- a/src/env.c
+++ b/src/env.c
@@ -70,6 +70,7 @@ serd_env_get_base_uri(const SerdEnv* env,
 	return &env->base_uri_node;
 }
 
+// TODO: Make env nonnull in next major release
 SerdStatus
 serd_env_set_base_uri(SerdEnv*        env,
                       const SerdNode* uri)
diff --git a/src/writer.c b/src/writer.c
index 5f312c30..5c84b950 100644
--- a/src/writer.c
+++ b/src/writer.c
@@ -694,6 +694,7 @@ write_list_obj(SerdWriter*        writer,
 	return false;
 }
 
+// TODO: Make subject, predicate,object nonnull in next major release
 SerdStatus
 serd_writer_write_statement(SerdWriter*        writer,
                             SerdStatementFlags flags,