diff --git a/libs/gl-client-py/glclient/__init__.py b/libs/gl-client-py/glclient/__init__.py
index 5def639c5..abc552695 100644
--- a/libs/gl-client-py/glclient/__init__.py
+++ b/libs/gl-client-py/glclient/__init__.py
@@ -16,7 +16,7 @@
 
 
 # Keep in sync with the libhsmd version, this is tested in unit tests.
-__version__ = "v25.12"
+__version__ = "v26.06"
 
 
 E = TypeVar("E", bound=PbMessage)
diff --git a/libs/gl-client/src/signer/mod.rs b/libs/gl-client/src/signer/mod.rs
index 7370d298e..da3fee6e9 100644
--- a/libs/gl-client/src/signer/mod.rs
+++ b/libs/gl-client/src/signer/mod.rs
@@ -60,7 +60,7 @@ pub mod model;
 mod report;
 mod resolve;
 
-const VERSION: &str = "v25.12";
+const VERSION: &str = "v26.06";
 const GITHASH: &str = env!("GIT_HASH");
 const RUNE_VERSION: &str = "gl0";
 // This is the same derivation key that is used by core lightning itself.
diff --git a/libs/gl-testing/gltesting/utils.py b/libs/gl-testing/gltesting/utils.py
index 8d8aec2e6..536bc1187 100644
--- a/libs/gl-testing/gltesting/utils.py
+++ b/libs/gl-testing/gltesting/utils.py
@@ -23,6 +23,7 @@ def is_compat(self, nv: NodeVersion) -> bool:
             "v24.11": ["v24.11gl1"],
             "v25.05": ["v25.05gl1"],
             "v25.12": ["v25.12gl1"],
+            "v26.06": ["v25.12gl1", "v26.06gl1"],
         }
 
         return self.name in compat[nv.name]
@@ -41,6 +42,7 @@ def get_node_version(self):
             "v24.11": "v24.11gl1",
             "v25.05": "v25.05gl1",
             "v25.12": "v25.12gl1",
+            "v26.06": "v26.06gl1",
         }
         return m[self.name]