Supplementary Agreement without Fresh Consideration – Valid or Void?

Can a supplemental agreement that varies the consideration in the main contract be valid without fresh consideration?
Our Tasha Lim and Tze Thung Chin dive into the Federal Court’s decision in 𝗣𝗼𝗿𝘁 𝗞𝗲𝗹𝗮𝗻𝗴 𝗔𝘂𝘁𝗵𝗼𝗿𝗶𝘁𝘆 𝘃 𝗞𝘂𝗮𝗹𝗮 𝗗𝗶𝗺𝗲𝗻𝘀𝗶 𝗦𝗱𝗻 𝗕𝗵𝗱 to find out.