Add io direction attributes to Changelog (open-telemetry#570)

Co-authored-by: Josh Suereth <joshuasuereth@google.com>

Author: braydonk

CHANGELOG.md

@@ -20,6 +20,9 @@ release.
   ([#536](https://github.com/open-telemetry/semantic-conventions/pull/536))
 - BREAKING: Change `event.name` definition to include `namespace` and remove `event.domain` from log event attributes.
   ([#473](https://github.com/open-telemetry/semantic-conventions/pull/473))
+- BREAKING: Change `system.disk.io.direction` and `system.network.io.direction`
+  to global attributes `disk.io.direction` and `network.io.direction`
+  ([#530](https://github.com/open-telemetry/semantic-conventions/pull/530))
 
 ### Features
 

schema-next.yaml

@@ -6,6 +6,11 @@ versions:
     - rename_metrics:
         jvm.memory.usage: jvm.memory.used
         jvm.memory.usage_after_last_gc: jvm.memory.used_after_last_gc
+    # https://github.com/open-telemetry/semantic-conventions/pull/530
+    - rename_attributes:
+        attribute_map:
+          system.network.io.direction: network.io.direction
+          system.disk.io.direction: disk.io.direction
   1.23.0:
     metrics:
       changes: