Charitable donations made in 2024 can only be entered on a 2024 tax return. The TurboTax program for tax year 2024 should be available in early November 2024 for the desktop editions and in early December 2024 for the online editions.
You can use ItsDeductible for your 2024 donation to later download to the 2024 tax return.
Go to this website for ItsDeductible website - https://turbotax.intuit.com/personal-taxes/itsdeductible/