This is a Liar Yajisan-Kazusan puzzle.
The rules for Yajisan-Kazusan can be found here: Rules page
In addition to the usual rules of Yajisan-Kazusan, one clue in every row and every column is mislabelled. If this clue is unshaded, then it does not point to the number of black squares indicated. If it is shaded, then it provides no information.
This puzzle is being posted in celebration of another exciting puzzle event! I submitted a puzzle to Pavel Curtis’Ænigmatic Addenda series, and it’s been published today. You can see it here: Addendum 15. If you solve it, you could win a free physical puzzle, so I highly encourage everyone to try it.
This is not a return to regular posting yet, but I’m currently working on a backlog, and I’ll hopefully start posting again in the next few months. I hope you look forward to it!
Jamie.