diff --git a/CHANGELOG.md b/CHANGELOG.md
index d08dfcb..5ecea67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,16 @@
+## 1.32.0
+
+* Fix a bug that allowed coalescing of features with mismatched attributes
+  if they had been passed through a shell prefilter
+
+## 1.31.7
+
+* Create the output tile directory even if there are no valid features
+
+## 1.31.6
+
+* Issue an error message in tile-join if minzoom is greater than maxzoom
+
 ## 1.31.5
 
 * Add options to change the tilestats limits
diff --git a/Makefile b/Makefile
index 6e670f0..ad6225c 100644
--- a/Makefile
+++ b/Makefile
@@ -140,10 +140,15 @@ parallel-test:
 	rm tests/parallel/*.mbtiles tests/parallel/*.json
 
 raw-tiles-test:
-	./tippecanoe -q -f -e tests/raw-tiles/raw-tiles -r1 tests/raw-tiles/hackspots.geojson -pC
+	./tippecanoe -q -f -e tests/raw-tiles/raw-tiles -r1 -pC tests/raw-tiles/hackspots.geojson
 	./tippecanoe-decode -x generator tests/raw-tiles/raw-tiles > tests/raw-tiles/raw-tiles.json.check
 	cmp tests/raw-tiles/raw-tiles.json.check tests/raw-tiles/raw-tiles.json
 	rm -rf tests/raw-tiles/raw-tiles tests/raw-tiles/compare.json.check
+	# Test that metadata.json is created even if all features are clipped away
+	./tippecanoe -q -f -e tests/raw-tiles/nothing tests/raw-tiles/nothing.geojson
+	./tippecanoe-decode -x generator tests/raw-tiles/nothing > tests/raw-tiles/nothing.json.check
+	cmp tests/raw-tiles/nothing.json.check tests/raw-tiles/nothing.json
+	rm -r tests/raw-tiles/nothing tests/raw-tiles/nothing.json.check
 
 decode-test:
 	mkdir -p tests/muni/decode
diff --git a/dirtiles.cpp b/dirtiles.cpp
index 3104caf..51773c7 100644
--- a/dirtiles.cpp
+++ b/dirtiles.cpp
@@ -65,6 +65,7 @@ static bool pbfname(const char *s) {
 void check_dir(const char *dir, bool force, bool forcetable) {
 	struct stat st;
 
+	mkdir(dir, S_IRWXU | S_IRWXG | S_IRWXO);
 	std::string meta = std::string(dir) + "/" + "metadata.json";
 	if (force) {
 		unlink(meta.c_str());  // error OK since it may not exist;
diff --git a/main.cpp b/main.cpp
index bec8fa7..e2ee27b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -3060,7 +3060,7 @@ int main(int argc, char **argv) {
 	}
 
 	if (minzoom > maxzoom) {
-		fprintf(stderr, "minimum zoom -Z cannot be greater than maxzoom -z\n");
+		fprintf(stderr, "%s: Minimum zoom -Z%d cannot be greater than maxzoom -z%d\n", argv[0], minzoom, maxzoom);
 		exit(EXIT_FAILURE);
 	}
 
diff --git a/tests/raw-tiles/nothing.geojson b/tests/raw-tiles/nothing.geojson
new file mode 100644
index 0000000..bfbf441
--- /dev/null
+++ b/tests/raw-tiles/nothing.geojson
@@ -0,0 +1,5 @@
+{
+"type": "FeatureCollection",
+"features": [
+{ "type": "Feature", "properties": { }, "geometry": { "type": "Point", "coordinates": [ 999,999 ]} }
+] }
diff --git a/tests/raw-tiles/nothing.json b/tests/raw-tiles/nothing.json
new file mode 100644
index 0000000..8c91ef8
--- /dev/null
+++ b/tests/raw-tiles/nothing.json
@@ -0,0 +1,13 @@
+{ "type": "FeatureCollection", "properties": {
+"bounds": "-180.000000,85.051129,180.000000,85.051129",
+"center": "-179.989014,85.051129,14",
+"description": "tests/raw-tiles/nothing",
+"format": "pbf",
+"json": "{\"vector_layers\": [ { \"id\": \"nothing\", \"description\": \"\", \"minzoom\": 0, \"maxzoom\": 14, \"fields\": {} } ],\"tilestats\": {\"layerCount\": 1,\"layers\": [{\"layer\": \"nothing\",\"count\": 1,\"geometry\": \"Point\",\"attributeCount\": 0,\"attributes\": []}]}}",
+"maxzoom": "14",
+"minzoom": "0",
+"name": "tests/raw-tiles/nothing",
+"type": "overlay",
+"version": "2"
+}, "features": [
+] }
diff --git a/tile-join.cpp b/tile-join.cpp
index ea75012..594e56f 100644
--- a/tile-join.cpp
+++ b/tile-join.cpp
@@ -1137,6 +1137,11 @@ int main(int argc, char **argv) {
 		usage(argv);
 	}
 
+	if (minzoom > maxzoom) {
+		fprintf(stderr, "%s: Minimum zoom -Z%d cannot be greater than maxzoom -z%d\n", argv[0], minzoom, maxzoom);
+		exit(EXIT_FAILURE);
+	}
+
 	if (out_mbtiles != NULL) {
 		if (force) {
 			unlink(out_mbtiles);
diff --git a/version.hpp b/version.hpp
index 2829d01..5589f67 100644
--- a/version.hpp
+++ b/version.hpp
@@ -1,6 +1,6 @@
 #ifndef VERSION_HPP
 #define VERSION_HPP
 
-#define VERSION "v1.31.5"
+#define VERSION "v1.32.0"
 
 #endif