The ABC dictionaries are occasionally updated, but nowhere near the daily frequency of CC-CEDICT. As with CC-CEDICT, we aim to update the ABC dictionaries every 6 months.
BTW, the latest ABC versions (which can be found in the About screen) are 1.0.3 (for both ABC C-E and ABC E-C). If you are using an earlier version then you can trigger the download by deleting (actually, safer to rename) the corresponding dictionary file:
We will have a proper dict update notification system in place soon.