diff --git a/crates/re_types/source_hash.txt b/crates/re_types/source_hash.txt
index 711d467446f4b..1dfc254529e9a 100644
--- a/crates/re_types/source_hash.txt
+++ b/crates/re_types/source_hash.txt
@@ -1,4 +1,4 @@
 # This is a sha256 hash for all direct and indirect dependencies of this crate's build script.
 # It can be safely removed at anytime to force the build script to run again.
 # Check out build.rs to see how it's computed.
-ba3dbc22cd914eac35c130d4bac2754a325ca5cd6e5154cd1511963b2bdc0769
+c19f042ca7d4df439ce98030fdd82f4c8be1fec2f1046a525c48f4a91d5dc0e6
\ No newline at end of file
diff --git a/crates/re_types/src/components/class_id.rs b/crates/re_types/src/components/class_id.rs
index c55b7cf654802..e5c03e11b5d7f 100644
--- a/crates/re_types/src/components/class_id.rs
+++ b/crates/re_types/src/components/class_id.rs
@@ -8,7 +8,7 @@ pub struct ClassId(pub u16);
 
 impl crate::Component for ClassId {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.ClassId")
+        crate::ComponentName::Borrowed("rerun.class_id")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/color.rs b/crates/re_types/src/components/color.rs
index 6041c8c58f4b7..1de749cdb19a0 100644
--- a/crates/re_types/src/components/color.rs
+++ b/crates/re_types/src/components/color.rs
@@ -18,7 +18,7 @@ pub struct Color(pub u32);
 
 impl crate::Component for Color {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.Color")
+        crate::ComponentName::Borrowed("rerun.colorrgba")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/draw_order.rs b/crates/re_types/src/components/draw_order.rs
index 92aea359ddfd4..1ed1c97acedf6 100644
--- a/crates/re_types/src/components/draw_order.rs
+++ b/crates/re_types/src/components/draw_order.rs
@@ -13,7 +13,7 @@ pub struct DrawOrder(pub f32);
 
 impl crate::Component for DrawOrder {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.DrawOrder")
+        crate::ComponentName::Borrowed("rerun.draw_order")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/instance_key.rs b/crates/re_types/src/components/instance_key.rs
index 05259100c73be..229858d46cca4 100644
--- a/crates/re_types/src/components/instance_key.rs
+++ b/crates/re_types/src/components/instance_key.rs
@@ -6,7 +6,7 @@ pub struct InstanceKey(pub u64);
 
 impl crate::Component for InstanceKey {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.InstanceKey")
+        crate::ComponentName::Borrowed("rerun.instance_key")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/keypoint_id.rs b/crates/re_types/src/components/keypoint_id.rs
index 757cf35486ae7..dc052c879909f 100644
--- a/crates/re_types/src/components/keypoint_id.rs
+++ b/crates/re_types/src/components/keypoint_id.rs
@@ -10,7 +10,7 @@ pub struct KeypointId(pub u16);
 
 impl crate::Component for KeypointId {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.KeypointId")
+        crate::ComponentName::Borrowed("rerun.keypoint_id")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/label.rs b/crates/re_types/src/components/label.rs
index d66f624bf0ab1..782e45f321963 100644
--- a/crates/re_types/src/components/label.rs
+++ b/crates/re_types/src/components/label.rs
@@ -7,7 +7,7 @@ pub struct Label(pub String);
 
 impl crate::Component for Label {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.Label")
+        crate::ComponentName::Borrowed("rerun.label")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/point2d.rs b/crates/re_types/src/components/point2d.rs
index a5c740e105856..98f057872886e 100644
--- a/crates/re_types/src/components/point2d.rs
+++ b/crates/re_types/src/components/point2d.rs
@@ -9,7 +9,7 @@ pub struct Point2D {
 
 impl crate::Component for Point2D {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.Point2D")
+        crate::ComponentName::Borrowed("rerun.point2d")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/crates/re_types/src/components/radius.rs b/crates/re_types/src/components/radius.rs
index 9a9e5855fe1d1..02fffa83b5874 100644
--- a/crates/re_types/src/components/radius.rs
+++ b/crates/re_types/src/components/radius.rs
@@ -6,7 +6,7 @@ pub struct Radius(pub f32);
 
 impl crate::Component for Radius {
     fn name() -> crate::ComponentName {
-        crate::ComponentName::Borrowed("rerun.components.Radius")
+        crate::ComponentName::Borrowed("rerun.radius")
     }
 
     #[allow(clippy::wildcard_imports)]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/class_id.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/class_id.py
index 24cc9625acc9d..c61b49ca56b8c 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/class_id.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/class_id.py
@@ -41,7 +41,7 @@ def __array__(self) -> npt.ArrayLike:
 
 class ClassIdType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.uint16(), "rerun.components.ClassId")
+        pa.ExtensionType.__init__(self, pa.uint16(), "rerun.class_id")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -58,7 +58,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return ClassIdArray
 
 
-pa.register_extension_type(ClassIdType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(ClassIdType())
 
 
 class ClassIdArray(pa.ExtensionArray, ClassIdArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/color.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/color.py
index c7fb9a0686f7a..dca8ab2678453 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/color.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/color.py
@@ -50,7 +50,7 @@ def __array__(self) -> npt.ArrayLike:
 
 class ColorType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.uint32(), "rerun.components.Color")
+        pa.ExtensionType.__init__(self, pa.uint32(), "rerun.colorrgba")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -67,7 +67,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return ColorArray
 
 
-pa.register_extension_type(ColorType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(ColorType())
 
 
 class ColorArray(pa.ExtensionArray, ColorArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/draw_order.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/draw_order.py
index 7f94db01de4cc..dd4c9314b7fc8 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/draw_order.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/draw_order.py
@@ -42,7 +42,7 @@ def __array__(self) -> npt.ArrayLike:
 
 class DrawOrderType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.float32(), "rerun.components.DrawOrder")
+        pa.ExtensionType.__init__(self, pa.float32(), "rerun.draw_order")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -59,7 +59,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return DrawOrderArray
 
 
-pa.register_extension_type(DrawOrderType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(DrawOrderType())
 
 
 class DrawOrderArray(pa.ExtensionArray, DrawOrderArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/instance_key.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/instance_key.py
index 01040b7bbb9ce..f4733520cf7ab 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/instance_key.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/instance_key.py
@@ -34,7 +34,7 @@ def __array__(self) -> npt.ArrayLike:
 
 class InstanceKeyType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.uint64(), "rerun.components.InstanceKey")
+        pa.ExtensionType.__init__(self, pa.uint64(), "rerun.instance_key")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -51,7 +51,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return InstanceKeyArray
 
 
-pa.register_extension_type(InstanceKeyType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(InstanceKeyType())
 
 
 class InstanceKeyArray(pa.ExtensionArray, InstanceKeyArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/keypoint_id.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/keypoint_id.py
index 6c1d52c9abce3..9e406e06abfa5 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/keypoint_id.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/keypoint_id.py
@@ -43,7 +43,7 @@ def __array__(self) -> npt.ArrayLike:
 
 class KeypointIdType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.uint16(), "rerun.components.KeypointId")
+        pa.ExtensionType.__init__(self, pa.uint16(), "rerun.keypoint_id")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -60,7 +60,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return KeypointIdArray
 
 
-pa.register_extension_type(KeypointIdType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(KeypointIdType())
 
 
 class KeypointIdArray(pa.ExtensionArray, KeypointIdArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/label.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/label.py
index 51aa945cf9d8f..a48e2a92f9718 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/label.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/label.py
@@ -35,7 +35,7 @@ def __str__(self) -> str:
 
 class LabelType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.utf8(), "rerun.components.Label")
+        pa.ExtensionType.__init__(self, pa.utf8(), "rerun.label")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -52,7 +52,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return LabelArray
 
 
-pa.register_extension_type(LabelType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(LabelType())
 
 
 class LabelArray(pa.ExtensionArray, LabelArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/point2d.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/point2d.py
index bfb7575a2328b..3096ec2d1c5ed 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/point2d.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/point2d.py
@@ -35,7 +35,7 @@ def __init__(self: type[pa.ExtensionType]) -> None:
         pa.ExtensionType.__init__(
             self,
             pa.struct([pa.field("x", pa.float32(), True, {}), pa.field("y", pa.float32(), True, {})]),
-            "rerun.components.Point2D",
+            "rerun.point2d",
         )
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
@@ -53,7 +53,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return Point2DArray
 
 
-pa.register_extension_type(Point2DType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(Point2DType())
 
 
 class Point2DArray(pa.ExtensionArray, Point2DArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/components/radius.py b/rerun_py/rerun_sdk/rerun/_rerun2/components/radius.py
index 62546605e5da6..7508475d1ad99 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/components/radius.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/components/radius.py
@@ -34,7 +34,7 @@ def __array__(self) -> npt.ArrayLike:
 
 class RadiusType(pa.ExtensionType):  # type: ignore[misc]
     def __init__(self: type[pa.ExtensionType]) -> None:
-        pa.ExtensionType.__init__(self, pa.float32(), "rerun.components.Radius")
+        pa.ExtensionType.__init__(self, pa.float32(), "rerun.radius")
 
     def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
         # since we don't have a parameterized type, we don't need extra metadata to be deserialized
@@ -51,7 +51,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return RadiusArray
 
 
-pa.register_extension_type(RadiusType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(RadiusType())
 
 
 class RadiusArray(pa.ExtensionArray, RadiusArrayExt):  # type: ignore[misc]
diff --git a/rerun_py/rerun_sdk/rerun/_rerun2/datatypes/vec2d.py b/rerun_py/rerun_sdk/rerun/_rerun2/datatypes/vec2d.py
index 0383fd6e3f33f..bc6320a233bb0 100644
--- a/rerun_py/rerun_sdk/rerun/_rerun2/datatypes/vec2d.py
+++ b/rerun_py/rerun_sdk/rerun/_rerun2/datatypes/vec2d.py
@@ -53,7 +53,8 @@ def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]
         return Vec2DArray
 
 
-pa.register_extension_type(Vec2DType())
+# TODO(cmc): bring back registration to pyarrow once legacy types are gone
+# pa.register_extension_type(Vec2DType())
 
 
 class Vec2DArray(pa.ExtensionArray, Vec2DArrayExt):  # type: ignore[misc]