fix(exec): correct stale 0.8.0 reference in Uvicorn/Granian warning

news/6720.bugfix.md

@@ -0,0 +1 @@
+Corrected the Uvicorn backend warning that claimed the switch to Granian as the default would happen in `0.8.0`, a version that has already shipped; it now describes the change as coming in a future release and points to `REFLEX_USE_GRANIAN=1` to opt in early.

reflex/utils/exec.py

@@ -377,7 +377,7 @@ def run_frontend_prod(host: str, port: int):
 @once
 def _warn_user_about_uvicorn():
     console.warn(
-        "Using Uvicorn for backend as it is installed. This behavior will change in 0.8.0 to use Granian by default."
+        "Using Uvicorn for backend as it is installed. Reflex will switch to Granian by default in a future release; set REFLEX_USE_GRANIAN=1 to opt in now."
     )
 
 

tests/units/utils/test_exec.py

@@ -1,5 +1,6 @@
 """Tests for development backend launchers in ``reflex.utils.exec``."""
 
+import inspect
 import os
 from pathlib import Path
 
@@ -78,3 +79,17 @@ def serve(self):
     )
 
     assert seen["value"] == "True"
+
+
+def test_warn_user_about_uvicorn_does_not_reference_past_version(
+    mocker: MockerFixture,
+):
+    """The Uvicorn/Granian warning must not cite a version that has already shipped."""
+    warn = mocker.patch.object(exec_utils.console, "warn")
+
+    inspect.unwrap(exec_utils._warn_user_about_uvicorn)()
+
+    warn.assert_called_once()
+    message = warn.call_args.args[0]
+    assert "0.8.0" not in message
+    assert "Granian" in message