diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 14bd9608..25a8593b 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -222,7 +222,7 @@ jobs:
         mkdir extensions
         ./build-docs -d ${GITHUB_WORKSPACE}/.github/workflows/docs/extensions/api
     - name: Upload docs as artefact
-      uses: actions/upload-pages-artifact@v1
+      uses: actions/upload-pages-artifact@v2
       with:
         path: .github/workflows/docs/extensions
 
diff --git a/_metadata.py b/_metadata.py
index eabce987..18f15e33 100644
--- a/_metadata.py
+++ b/_metadata.py
@@ -1,2 +1,2 @@
-__extension_version__ = "0.18.0"
+__extension_version__ = "0.19.0"
 __extension_name__ = "pytket-quantinuum"
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 164c5cb6..d7af4969 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,12 @@
 Changelog
 ~~~~~~~~~
 
+0.19.0 (August 2023)
+--------------------
+
+* Update `FullyConnected` Architecture to label Node with "q", matching
+  compilation by `FlattenRelabelRegistersPass`.
+
 0.18.0 (July 2023)
 ------------------
 
diff --git a/pytket/extensions/quantinuum/backends/quantinuum.py b/pytket/extensions/quantinuum/backends/quantinuum.py
index 7f3b65fa..2832ef6a 100644
--- a/pytket/extensions/quantinuum/backends/quantinuum.py
+++ b/pytket/extensions/quantinuum/backends/quantinuum.py
@@ -288,7 +288,7 @@ def _dict_to_backendinfo(cls, dct: Dict[str, Any]) -> BackendInfo:
             name=cls.__name__,
             device_name=name,
             version=__extension_version__,
-            architecture=FullyConnected(n_qubits, "node"),
+            architecture=FullyConnected(n_qubits, "q"),
             gate_set=_get_gateset(gate_set),
             n_cl_reg=n_cl_reg,
             supports_fast_feedforward=True,
diff --git a/tests/test-requirements.txt b/tests/test-requirements.txt
index 287df677..365b8dac 100644
--- a/tests/test-requirements.txt
+++ b/tests/test-requirements.txt
@@ -3,5 +3,5 @@ pytest-timeout ~= 1.4.2
 hypothesis
 requests_mock
 llvmlite ~= 0.40.0
-pytket-qir == 0.2.0rc11
+pytket-qir == 0.2.0rc14
 pytest-rerunfailures
diff --git a/tests/unit/api1_test.py b/tests/unit/api1_test.py
index efb7cc76..8f8f3a05 100644
--- a/tests/unit/api1_test.py
+++ b/tests/unit/api1_test.py
@@ -447,9 +447,7 @@ def test_available_devices(
     backinfo = devices[0]
 
     assert backinfo.device_name == mock_machine_info["name"]
-    assert backinfo.architecture == FullyConnected(
-        mock_machine_info["n_qubits"], "node"
-    )
+    assert backinfo.architecture == FullyConnected(mock_machine_info["n_qubits"], "q")
     assert backinfo.version == __extension_version__
     assert backinfo.supports_fast_feedforward == True
     assert backinfo.supports_midcircuit_measurement == True