I've downloaded the Version 2024.4.8 and the Manitoba tax brackets and Manitoba Basic Personal Amount have still not been updated to the 2025 rates. Please advise.

Check the 2025 TD1MB form. Excerpt from the CRA website:

Manitoba income tax rates for 2025Tax rate Taxable income threshold

10.8% on the portion of taxable income that is $47,564 or less, plus
12.75% on the portion of taxable income over $47,564 up to $101,200, plus
17.4%
on the portion of taxable income over $101,200