Sideloading, one of Android’s core features — and the hallmark of its open-source nature — is changing. On March 19, Google announced a lot of new rules and restrictions coming to Android’s sideloading process. In some regards, it’s worse than what we expected.To be clear, sideloading isn’t going away from Android, but how it works will be significantly different from what we’re all used to. And for long-time Android fans, it’s going to be a particularly difficult adjustment.