From 7d545990b439528753342653e563ec455e788d53 Mon Sep 17 00:00:00 2001
From: Alec Edgington <54802828+cqc-alec@users.noreply.github.com>
Date: Mon, 14 Oct 2024 10:16:19 +0100
Subject: [PATCH] Use QIR by default for program submission (#508)

---
 docs/changelog.rst                                  |  5 +++++
 pytket/extensions/quantinuum/backends/quantinuum.py | 12 +-----------
 2 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/docs/changelog.rst b/docs/changelog.rst
index 013e93b6..d112c86d 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -3,6 +3,11 @@
 Changelog
 ~~~~~~~~~
 
+Unreleased
+----------
+
+* Use QIR by default for program submission.
+
 0.38.1 (October 2024)
 ---------------------
 
diff --git a/pytket/extensions/quantinuum/backends/quantinuum.py b/pytket/extensions/quantinuum/backends/quantinuum.py
index 44f57164..40d8bb56 100644
--- a/pytket/extensions/quantinuum/backends/quantinuum.py
+++ b/pytket/extensions/quantinuum/backends/quantinuum.py
@@ -980,17 +980,7 @@ def process_circuits(
 
         pytket_pass = cast(Optional[BasePass], kwargs.get("pytketpass"))
 
-        language: Optional[Language] = cast(Language, kwargs.get("language"))
-
-        if language is None:
-            language = Language.QASM
-            warnings.warn(
-                "The circuit is currently submitted as QASM by default. \
-The default is going to change. If you want to continue to use QASM \
-please add `language=Language.QASM` as an argument to `process_circuits()` \
-or `process_circuit()` to ensure consistent behaviour. If you want to try \
-QIR, please add `language=Language.QIR`."
-            )
+        language: Language = cast(Language, kwargs.get("language", Language.QIR))
 
         handle_list = []