If you didn’t update to Finale 25, Monday is when you want to do it. MakeMusic is offering a $99 upgrade to existing owners (of Finale, PrintMusic, and SongWriter).
Finale 25 doesn’t operate any differently than previous versions–most of the work was done “under the hood” updating the code. While there are some “new” things (e.g. transposing parts) the 64 bit programming is why you want the latest version.
Hopefully you saved some cash to be able to take advantage of the sale.