Summary
Trump signature to start appearing on $100 bill in June, marking 250th US anniversary
Change to delete US treasurer’s signature for the first time since 1861
Signature plan latest Trump move to put his name on buildings, programs, ships, money
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The first $100 bills with Trump’s signature and that of U.S. Treasury Secretary Scott Bessent will be printed in June, followed by other bills in subsequent months. The new bills may take several weeks to circulate through banks.
This is likely about anticounterfeiting tech advancements.
You can pass a Series 1934 note just fine from a legal standpoint, but with the old style design and less advanced features (no watermarks/embedded thread/colour changing inks) people might not trust its legitimacy.
Some countries demonetize their old notes aggressively. If you want to spend the £10 note you parents had from a 2000s trip, you’ll have to take it to the Bank of England to exchange for a newer one.