They released them last year in Mid-March. I went in 2017 and 2018 (the second night last year). In 2017 I thought it was okay, and went last year and absolutely hated it. I normally love basically everything at WDW, but it was so packed I couldn't move at all. One of the appeals of going to the party are shorter lines for attractions, and most everything had 45 minutes + lines. The snacks were tiny, and to get a good spot for the parade you needed to get a spot at least an hour in advance. I could go on, but basically it was just awful, with no redeeming value. I think the other complaint is that nothing has really changed for years. I have only been to WDW between May and August, and it was the most crowded I have ever seen. Sorry to be such a debbie downer but that was my experience (and it seems like the teams experience as well). I will not be going again this year. Please let me know if you have any questions!