diff --git a/gstreamer-allocators/sys/Gir.toml b/gstreamer-allocators/sys/Gir.toml
index 9886f58e1..2040d71ee 100644
--- a/gstreamer-allocators/sys/Gir.toml
+++ b/gstreamer-allocators/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-analytics/sys/Gir.toml b/gstreamer-analytics/sys/Gir.toml
index b7b967407..c7a17f828 100644
--- a/gstreamer-analytics/sys/Gir.toml
+++ b/gstreamer-analytics/sys/Gir.toml
@@ -6,6 +6,10 @@ min_cfg_version = "1.24"
 work_mode = "sys"
 single_version_file = true
 
+extra_versions = [
+    "1.26",
+]
+
 external_libraries = [
     "GLib",
 ]
diff --git a/gstreamer-app/sys/Gir.toml b/gstreamer-app/sys/Gir.toml
index 8be795d0a..a78134f24 100644
--- a/gstreamer-app/sys/Gir.toml
+++ b/gstreamer-app/sys/Gir.toml
@@ -11,6 +11,7 @@ external_libraries = [
 ]
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-audio/sys/Gir.toml b/gstreamer-audio/sys/Gir.toml
index 9a0fe0c3b..79b8424e7 100644
--- a/gstreamer-audio/sys/Gir.toml
+++ b/gstreamer-audio/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-base/sys/Gir.toml b/gstreamer-base/sys/Gir.toml
index 29d2c2cb8..eaea99ea1 100644
--- a/gstreamer-base/sys/Gir.toml
+++ b/gstreamer-base/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-check/sys/Gir.toml b/gstreamer-check/sys/Gir.toml
index 49844a07d..f363fff66 100644
--- a/gstreamer-check/sys/Gir.toml
+++ b/gstreamer-check/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-controller/sys/Gir.toml b/gstreamer-controller/sys/Gir.toml
index b75bd8b4d..2c7020b27 100644
--- a/gstreamer-controller/sys/Gir.toml
+++ b/gstreamer-controller/sys/Gir.toml
@@ -12,6 +12,7 @@ external_libraries = [
 ]
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-editing-services/sys/Gir.toml b/gstreamer-editing-services/sys/Gir.toml
index babdcfcb9..9428998f6 100644
--- a/gstreamer-editing-services/sys/Gir.toml
+++ b/gstreamer-editing-services/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-gl/egl/sys/Gir.toml b/gstreamer-gl/egl/sys/Gir.toml
index 983447a0b..8e7559af6 100644
--- a/gstreamer-gl/egl/sys/Gir.toml
+++ b/gstreamer-gl/egl/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-gl/sys/Gir.toml b/gstreamer-gl/sys/Gir.toml
index f595c63a1..67f16f5b0 100644
--- a/gstreamer-gl/sys/Gir.toml
+++ b/gstreamer-gl/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-gl/wayland/sys/Gir.toml b/gstreamer-gl/wayland/sys/Gir.toml
index 16f36f602..5f1aec76b 100644
--- a/gstreamer-gl/wayland/sys/Gir.toml
+++ b/gstreamer-gl/wayland/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-gl/x11/sys/Gir.toml b/gstreamer-gl/x11/sys/Gir.toml
index 14b760aad..df548dc5b 100644
--- a/gstreamer-gl/x11/sys/Gir.toml
+++ b/gstreamer-gl/x11/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-mpegts/sys/Gir.toml b/gstreamer-mpegts/sys/Gir.toml
index add071fc0..ef4b32f93 100644
--- a/gstreamer-mpegts/sys/Gir.toml
+++ b/gstreamer-mpegts/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-net/sys/Gir.toml b/gstreamer-net/sys/Gir.toml
index 90d9751b1..2ff440c8f 100644
--- a/gstreamer-net/sys/Gir.toml
+++ b/gstreamer-net/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-pbutils/sys/Gir.toml b/gstreamer-pbutils/sys/Gir.toml
index ec2e77ea5..b7abe4e0d 100644
--- a/gstreamer-pbutils/sys/Gir.toml
+++ b/gstreamer-pbutils/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-play/sys/Gir.toml b/gstreamer-play/sys/Gir.toml
index b48db66be..68d1ac5e5 100644
--- a/gstreamer-play/sys/Gir.toml
+++ b/gstreamer-play/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22"
 ]
diff --git a/gstreamer-player/sys/Gir.toml b/gstreamer-player/sys/Gir.toml
index 09aab447d..f474dddbb 100644
--- a/gstreamer-player/sys/Gir.toml
+++ b/gstreamer-player/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-rtp/sys/Gir.toml b/gstreamer-rtp/sys/Gir.toml
index 62da6ed70..b712cc017 100644
--- a/gstreamer-rtp/sys/Gir.toml
+++ b/gstreamer-rtp/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-rtsp-server/sys/Gir.toml b/gstreamer-rtsp-server/sys/Gir.toml
index 25c90fa28..fee98bc1e 100644
--- a/gstreamer-rtsp-server/sys/Gir.toml
+++ b/gstreamer-rtsp-server/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-rtsp/sys/Gir.toml b/gstreamer-rtsp/sys/Gir.toml
index c893126fa..ad062b017 100644
--- a/gstreamer-rtsp/sys/Gir.toml
+++ b/gstreamer-rtsp/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-sdp/sys/Gir.toml b/gstreamer-sdp/sys/Gir.toml
index 58e041588..eb1380fce 100644
--- a/gstreamer-sdp/sys/Gir.toml
+++ b/gstreamer-sdp/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-tag/sys/Gir.toml b/gstreamer-tag/sys/Gir.toml
index ed2f0cb80..1b7a9cfd4 100644
--- a/gstreamer-tag/sys/Gir.toml
+++ b/gstreamer-tag/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-validate/sys/Gir.toml b/gstreamer-validate/sys/Gir.toml
index 7f34190ce..84a8ea8d5 100644
--- a/gstreamer-validate/sys/Gir.toml
+++ b/gstreamer-validate/sys/Gir.toml
@@ -6,7 +6,10 @@ min_cfg_version = "1.22"
 work_mode = "sys"
 single_version_file = true
 
-extra_versions = ["1.24"]
+extra_versions = [
+    "1.26",
+    "1.24",
+]
 
 external_libraries = [
     "GLib",
diff --git a/gstreamer-video/sys/Gir.toml b/gstreamer-video/sys/Gir.toml
index 41d18fd91..a3d79082d 100644
--- a/gstreamer-video/sys/Gir.toml
+++ b/gstreamer-video/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer-webrtc/sys/Gir.toml b/gstreamer-webrtc/sys/Gir.toml
index 600f51b9d..88cf1a57d 100644
--- a/gstreamer-webrtc/sys/Gir.toml
+++ b/gstreamer-webrtc/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",
diff --git a/gstreamer/Gir.toml b/gstreamer/Gir.toml
index 0545a2675..e9bea166f 100644
--- a/gstreamer/Gir.toml
+++ b/gstreamer/Gir.toml
@@ -693,19 +693,19 @@ manual_traits = ["ClockExtManual"]
     [[object.function]]
     name = "add_observation"
         [[object.function.parameter]]
-        name = "slave"
+        name = "observation_internal"
         mandatory = true
         [[object.function.parameter]]
-        name = "master"
+        name = "observation_external"
         mandatory = true
 
     [[object.function]]
     name = "add_observation_unapplied"
         [[object.function.parameter]]
-        name = "slave"
+        name = "observation_internal"
         mandatory = true
         [[object.function.parameter]]
-        name = "master"
+        name = "observation_external"
         mandatory = true
         [[object.function.parameter]]
         name = "internal"
diff --git a/gstreamer/sys/Gir.toml b/gstreamer/sys/Gir.toml
index fbdbef411..f1a87c809 100644
--- a/gstreamer/sys/Gir.toml
+++ b/gstreamer/sys/Gir.toml
@@ -7,6 +7,7 @@ work_mode = "sys"
 single_version_file = true
 
 extra_versions = [
+    "1.26",
     "1.24",
     "1.22",
     "1.20",