Looks like Digimon Adventure tri. is leaving Hulu.
The episodic versions of Digimon Adventure tri. Parts 1 and 2 currently have tags on them to show they are expiring soon.
This appears to just be affecting tri., as there is no expiring soon tag on Adventure, 02, Tamers, or Frontier on Hulu.
Netflix still has seasons 1 thru 3 of Digimon dubbed listed as expiring tomorrow (April 15th) so if you want to watch any of it there, you have a little bit of time left.
Digimon Fusion (Seasons 1 and 2) are not currently scheduled to be removed from Netflix.
Update- Seasons 1 thru 3 are gone from Netflix.
Prior thread about Digimon leaving Netflix is here.
Thanks to WTK for the news.