Postal Service forever stamps price raise from 63 to 66 cents

Adjusting for inflation, 50 cents in 2019 equates to about 60 cents in spring 2023, according to the BLS. The forever stamp is going from 63 to 66 cents.
The price has been raised five times since 2019.

First-class stamps set to rise 3 cents in July, less than six months after last rate hike - Washington Times

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USPS to hike the cost of a first-class stamp to 66 cents on July 9

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Forever stamp: Postal service raises cost of first-class stamp in 2023