No, they have to capitalize (or amortize) development expenses over a 5 (domestic R&D) or 15 year (foreign R&D) period instead of getting to deduct them currently (meaning in the year incurred).
Due to the way depreciation works, development is treated as incurred mid-year regardless of when in the taxpayer's tax year they are actually incurred, so the ultimate effect is that only 10% of the development costs can be deducted in the first year, 20% for the next 4 years, and 10% in the final year (6th calendar year after incurring cost, due to the deemed mid-year start in the first year).
Due to the way depreciation works, development is treated as incurred mid-year regardless of when in the taxpayer's tax year they are actually incurred, so the ultimate effect is that only 10% of the development costs can be deducted in the first year, 20% for the next 4 years, and 10% in the final year (6th calendar year after incurring cost, due to the deemed mid-year start in the first year).