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docs: Update Config_Changes.md with recent coordinate changes

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor
2025-10-09 22:45:41 -04:00
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docs/Config_Changes.md
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@@ -8,6 +8,26 @@ All dates in this document are approximate.
## Changes ## Changes
20251106: The status fields `{printer.toolhead.position}`,
`{printer.gcode_move.position}`,
`{printer.gcode_move.gcode_position}`, and
`{printer.motion_report.live_position}` are changing. These
coordinates used to always contain four components, but now may
contain additional components. The ordering and number of components
may change at run-time - see the
[status reference](Status_Reference.md#accessing-coordinates) for
important details. Accessing any of these coordinates in macros using
the ".e" accessor is deprecated - use something like
`{printer.toolhead.position[printer.gcode_move.axis_map.E]}` as an
alternative.
20251106: The status fields `{printer.gcode_move.homing_origin}`,
`{printer.toolhead.axis_min}`, and `{printer.toolhead.axis_max}`
currently contain four components where the fourth component is always
zero. This behavior is deprecated. In the future these coordinates may
contain only three components. For additional information see the
[status reference](Status_Reference.md#accessing-coordinates).
20251010: During normal printing the command processing will now 20251010: During normal printing the command processing will now
attempt to stay one second ahead of printer movement (reduced from two attempt to stay one second ahead of printer movement (reduced from two
seconds previously). seconds previously).