Ordering by copyright status would require changing the indexing process as discussed someplace earlier. Ordering by date should in principle be doable by changing the solr query slightly. I prototyped something like that a while back but it didn't work reliably for some reason and there was something more urgent pending at the time, so it's been sitting around. I should get around to fixing it. (https://bugs.launchpad.net/openlibrary/+bug/133238)
Ordering by copyright status would require changing the indexing process as discussed someplace earlier. Ordering by date should in principle be doable by changing the solr query slightly. I prototyped something like that a while back but it didn't work reliably for some reason and there was something more urgent pending at the time, so it's been sitting around. I should get around to fixing it. (https:/ /bugs.launchpad .net/openlibrar y/+bug/ 133238)