An announcement on Beamdog’s website notes that they’ve pulled Baldur’s Gate: Enhanced Edition from sale:
We recently removed Baldur’s Gate: Enhanced Edition from sale on Beamdog and the Apple App Store. We’ve taken this step at our publishing partner’s request as we attempt to resolve a number of contractual issues.
Unfortunately, until this matter is resolved, we are unable to release the latest Baldur’s Gate: Enhanced Edition patch or Baldur’s Gate: Enhanced Edition for Android.
This also prevents the launch of Baldur’s Gate II: Enhanced Edition. I sincerely apologize to the series’ fans and promise we are working diligently to remedy the situation.
A FAQ has also been posted, reassuring users that this won’t affect their ability to “download and play” the game if they’ve already bought it, and that it’s due to “issues with our publishing partner”:
We are unable to discuss details of the complex legal matters surrounding this issue at this time. Please be aware that we are extremely unhappy with the situation and are doing our best to work past it. We have put a lot of hard work into this series, and are eager for fans to see it.