Will IRS mileage reimbursement be increasing midyear?

Will IRS mileage reimbursement be increasing midyear?
In recognition of increasing gasoline prices, the IRS has announced an increase in the optional standard mileage rates for the second half of 2008. The standard mileage rate for business miles driven from July 1, 2008, through December 31, 2008, will be 58.5 cents per mile, an increase of eight cents over the rate for the first half of the year. The standard mileage rate for medical and moving expenses has been increased to 27 cents per mile from 19 cents per mile. The standard mileage rate for charitable purposes, however, remains unchanged at 14 cents per mile. Rev. Proc. 2007-70, I.R.B. 2007-50, 1162, is modified.