Tiles has for a number of years been in low-activity maintenance mode. There had been hope for new committers and new development ideas but these have not eventuated.
Three months ago the discussion was raised on the dev ML. https://lists.apache.org/thread.html/f0a64c0c0803f8b3fdd788391f09fd9091909438e4eee83d1e1ee434@%3Cdev.tiles.apache.org%3E If no one from the community is willing to step up and provide new input into development efforts then a vote to move the project will happen soon on the dev ML. If the project moves to the Attic it will have little impact on users. The project will still be downloadable and usable. And github based development can still continue. It's just it won't be formally presented as an active Apache project. https://attic.apache.org/ regards, Mick