docs: note change to bed_mesh profile behavior

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/docs/Bed_Mesh.md b/docs/Bed_Mesh.md
index 34ac2768..8628b643 100644
--- a/docs/Bed_Mesh.md
+++ b/docs/Bed_Mesh.md
@@ -399,6 +399,26 @@ is not desirable the _default_ profile can be removed as follows:
 Any other saved profile can be removed in the same fashion, replacing
 _default_ with the named profile you wish to remove.
 
+
+#### Loading the default profile
+
+Previous versions of `bed_mesh` always loaded the profile named _default_
+on startup if it was present.  This behavior has been removed in favor of
+allowing the user to determine when a profile is loaded.  If a user wishes to
+load the `default` profile it is recommended to add
+`BED_MESH_PROFILE LOAD=default` to either their `START_PRINT` macro or their
+slicer's "Start G-Code" configuration, whichever is applicable.
+
+Alternatively the old behavior of loading a profile at startup can be
+restored with a `[delayed_gcode]`:
+
+```ini
+[delayed_gcode bed_mesh_init]
+initial_duration: .01
+gcode:
+  BED_MESH_PROFILE LOAD=default
+```
+
 ### Output
 
 `BED_MESH_OUTPUT PGP=[0 | 1]`