You have some pretty good replies already. You can asterisk everything that changed, bold them as John mentioned, etc. The point is to make them stand out.
FYI, here is the OSC cite: §230.5 Subsequent disclosures.
1. Form of notice. Institutions may provide a change-in-term notice on or with a periodic statement or in another mailing. If an institution provides notice through revised account disclosures, the changed term must be highlighted in some manner. For example, institutions may note that a particular fee has been changed (also specifying the new amount) or use an accompanying letter that refers to the changed term.
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AndyZ CRCM
My opinions are not necessarily my employers.
R+R-R=R+R
Rules and Regs minus Relationships equals Resentment and Rebellion. John Maxwell