update release notes

RELEASES_SUBARU.md

@@ -1,3 +1,24 @@
+2023-08-14
+==========
+* FPv2 updates
+  * Subaru Forester Wilderness 2023 / @FutureGhost
+
+2023-08-08
+==========
+* openpilot 0.9.4
+  * Navigate on openpilot in Experimental mode
+    * When navigation has a destination, openpilot will input the map information into the model, which provides useful context to help the model understand the scene
+    * When navigating on openpilot, openpilot will keep left or right appropriately at forks and exits
+    * When navigating on openpilot, lane change behavior is unchanged and still activated by the driver
+    * When navigate on openpilot is active, the path on the map is green
+  * UI updates
+    * Navigation settings moved to home screen and map
+    * Border color always shows engagement status. Blue means disengaged, green means engaged, and grey means engaged with human overriding
+    * Alerts are shown inside the border. Black means info, orange means warning, and red means critical alert
+  * Bookmarked segments are preserved on the device's storage
+  * Ford Focus 2018 support
+  * Kia Carnival 2023 support thanks to sunnyhaibin!
+
 2023-06-12
 ==========
 * FPv2 updates