The U.S. Postal Service has announced plans to raise the cost of a first-class stamp to 78 cents. This proposed increase of 5 cents is part of an ongoing effort to adjust postage pricing, with new rates expected to take effect soon. The USPS aims to enhance its financial stability amidst rising operational costs and will outline the details of the rate hike, including the start date, in further announcements. Current projections indicate that stamp prices may see additional increases in the future.