With 100 days to go until the next Senedd election, voters in Wales can expect some significant changes.
A new voting system will be introduced, with people asked to place a cross next to their preferred party, rather than an individual candidate.
The electoral map of Wales has also been streamlined, reducing the number of constituencies to 16.
The Senedd itself will grow, with the number of members increasing from 60 to 96.
BBC journalist Jennifer Jones explains what has changed.
Video edited by Terel Edmunds
