diff --git a/WHATS_NEW.md b/WHATS_NEW.md
index d78ca4d5a7..568b4ec296 100644
--- a/WHATS_NEW.md
+++ b/WHATS_NEW.md
@@ -1,6 +1,17 @@
 Summary of important changes in recent versions
 ===============================================
 
+Version 2.06 (in preparation)
+============
+Compatible files:
+- DuetWiFiServer 1.23
+- DuetWebControl 2.0.6 (recommended) or 1.22.6
+
+Bug fixes:
+- On delta printers, M564 S0 did not allow you to exceed the M665 print radius parameter
+- Fixed a possible 1-character buffer overflow in class OutputBuffer
+- On tool changers, if the different tools did not have equal XY offsets then G1 X moves in the tpre and tpost tool change files might perform uncommanded Y movement, and vice versa
+
 Version 2.05
 ============
 Compatible files:
@@ -10,6 +21,10 @@ Compatible files:
 Upgrade notes from version 2.04:
 - If using this release to control a laser cutter or laser engraver, see "Changed behaviour" below.
 
+Known issues:
+- On delta printers, M564 S0 does not allow you to exceed the M665 print radius parameter
+- On tool changers, if the different tools do not have equal XY offsets then G1 X moves in the tpre and tpost tool change files might perform uncommanded Y movement, and vice versa. Workaround: insert command M400 at the start of each tpre and tpost file.
+
 Changed behaviour:
 - In laser mode (M453), M3 never turns on the laser immediately. Instead it sets the default laser power for following G1/G2/G3 commands. Likewise, M5 does not immediately turn off the laser, it sets the default laser power for following G1/G2/G3 commands. If a subsequent G1 command has a S parameter, the value of that parameter becomes the default laser power for that command and subsequent G1/G2/G3 commands.
 - Current position is no longer shown for pulse-type filament monitors, because it was meaningless and nearly always zero