Update history.txt

megamek/docs/history.txt

@@ -67,6 +67,7 @@ MEGAMEK VERSION HISTORY:
 + Fix #5796: Prevent NPE when units are ineligible for Physical Attack phase due to having loaded onto a transport this round
 + Fix #5818: correct issue with minimap autodisplay using wrong function
 + PR #5822: Implement RFE 5361: enhance Princess handling of hazardous terrain
++ Issues #2577, #897, #353: Implement placeable/carryable cargo objects (for mechs and protomechs only at the moment)
 
 0.49.20 (2024-06-28 2100 UTC) (THIS IS THE LAST VERSION TO SUPPORT JAVA 11)
 + PR #5281, #5327, #5308, #5336, #5318, #5383, #5369, #5384, #5455, #5505, #5541: Code internals: preparatory work for supporting game types such as SBF, code cleanup for string drawing, superclass change for BoardView,