diff --git a/package.json b/package.json
index 64385d0f..acb6879d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@macrostrat/api-v2",
-  "version": "2.1.6",
+  "version": "2.1.7",
   "description": "An API for stratigraphic and geological information (Version 2).",
   "main": "server.js",
   "repository": {
diff --git a/v2/CHANGELOG.md b/v2/CHANGELOG.md
index ee6d008a..4837a080 100644
--- a/v2/CHANGELOG.md
+++ b/v2/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Macrostrat API v2 Changelog
 
+## [2.1.7] - 2025-11-19
+
+- Allow multiple `status_code` values in `/columns` route
+- Add `status_code` filter option to
+
+
+## [2.1.5] - 2025-11-07
+
+- Add `t_units` and `t_sections` summary parameters to short `/columns` output
+
+## [2.x.x] Series - 2024 to 2025
+
+Moved the entire API to be based on PostgreSQL instead of a mix of PostgreSQL
+and MariaDB.
+
+--------
+
 ## tl;dr
 
 - Added `?sample` to every route (except `/mobile`), which returns 5 records.
diff --git a/v2/columns.ts b/v2/columns.ts
index 28a3a64a..fe13c2cc 100644
--- a/v2/columns.ts
+++ b/v2/columns.ts
@@ -148,27 +148,32 @@ module.exports = function (req, res, next, callback) {
         }
 
         var geo = "";
-        var params = [
-          Object.keys(new_cols).map(function (d) {
-            return parseInt(d);
-          }),
-        ];
+
+        const col_ids = Object.keys(new_cols).map(function (d) {
+          return parseInt(d);
+        });
+
+        let params = {
+          col_ids,
+        };
 
         var limit = "sample" in req.query ? " LIMIT 5" : "";
         var groupBy = "";
-        var orderby = "";
+        let orderBy = "";
 
         if (req.query.status_code) {
-          params.push(decodeURI(req.query.status_code));
+          params["status_code"] = larkin.parseMultipleStrings(
+            decodeURI(req.query.status_code),
+          );
         } else {
-          params.push("active");
+          params["status_code"] = ["active"];
         }
 
         if (req.query.format && api.acceptedFormats.geo[req.query.format]) {
           if (req.query.shape) {
             geo =
-              ", ST_AsGeoJSON(ST_Intersection(col_areas.col_area, ST_MakeValid($3))) geojson";
-            params.push(req.query.shape);
+              ", ST_AsGeoJSON(ST_Intersection(col_areas.col_area, ST_MakeValid(:shape))) geojson";
+            params["shape"] = req.query.shape;
           } else {
             geo = ", ST_AsGeoJSON(col_areas.col_area) geojson";
           }
@@ -176,20 +181,17 @@ module.exports = function (req, res, next, callback) {
         }
 
         if (req.query.lat && req.query.lng && req.query.adjacents) {
-          orderby =
-            "ORDER BY ST_Distance(ST_SetSRID(col_areas.col_area, 4326), ST_GeometryFromText($3, 4326))";
-          params.push(
-            "POINT(" +
-              larkin.normalizeLng(req.query.lng) +
-              " " +
-              req.query.lat +
-              ")",
-          );
+          orderBy =
+            "ORDER BY ST_Distance(ST_SetSRID(col_areas.col_area, 4326), ST_GeometryFromText(ST_MakePoint(:lng, :lat), 4326))";
+          params["lat"] = req.query.lat;
+          params["lng"] = larkin.normalizeLng(req.query.lng);
           groupBy = ", col_areas.col_area";
         } else if (req.query.col_id && req.query.adjacents) {
-          orderby =
-            "ORDER BY ST_Distance(ST_Centroid(col_areas.col_area), (SELECT ST_Centroid(col_area) FROM macrostrat.col_areas WHERE col_id = $3))";
-          params.push(req.query.col_id);
+          orderBy = `ORDER BY ST_Distance(
+                ST_Centroid(col_areas.col_area),
+                (SELECT ST_Centroid(col_area) FROM macrostrat.col_areas WHERE col_id = :col_id)
+             )`;
+          params["col_id"] = req.query.col_id;
           groupBy = ", col_areas.col_area";
         }
 
@@ -215,10 +217,10 @@ module.exports = function (req, res, next, callback) {
       LEFT JOIN macrostrat.col_areas on col_areas.col_id = cols.id
       LEFT JOIN macrostrat.col_groups ON col_groups.id = cols.col_group_id
       LEFT JOIN macrostrat.col_refs ON cols.id = col_refs.col_id
-      WHERE cols.status_code = $2
-        AND cols.id = ANY($1)
+      WHERE cols.status_code = ANY(:status_code)
+        AND cols.id = ANY(:col_ids)
       GROUP BY col_areas.col_id, cols.id, col_groups.col_group, col_groups.id ${groupBy}
-      ${orderby}
+      ${orderBy}
       ${limit}
       `,
           params,
diff --git a/v2/definitions/columns.ts b/v2/definitions/columns.ts
index 8104ed27..ad3f7928 100644
--- a/v2/definitions/columns.ts
+++ b/v2/definitions/columns.ts
@@ -48,9 +48,13 @@ module.exports = function (req, res, next, cb) {
     where.push("cols.project_id = ANY(:project_id)");
     params["project_id"] = larkin.parseMultipleIds(req.query.project_id);
   }
-  if (req.query.status) {
-    where.push("status_code = :status");
-    params["status"] = req.query.status;
+  if (req.query.status_code || req.query.status) {
+    // `status` parameter still works but has been superseded by `status_code`
+    // multiple status codes can be provided
+    where.push("status_code = ANY(:status_code)");
+    params["status_code"] = larkin.parseMultipleIds(
+      req.query.status_code ?? req.query.status,
+    );
   }
 
   if (where.length) {
diff --git a/v2/defs.ts b/v2/defs.ts
index 8528d075..4c43d339 100644
--- a/v2/defs.ts
+++ b/v2/defs.ts
@@ -1,3 +1,6 @@
+const statusCodeExplanation =
+  "string, column status codes, values 'active','in process','obsolete'. Defaults to 'active'";
+
 (function () {
   const sharedUnitFilters = {
     unit_id: "integer, a valid unit id",
@@ -42,6 +45,7 @@
     adjacents:
       "boolean, if lat/lng or col_id is specified, optionally return all units in columns that touch the polygon containing the supplied lat/lng",
     project_id: "a Macrostrat project ID",
+    status_code: statusCodeExplanation,
     response: "Any available response_type. Default is short.",
     format: "string, desired output format",
   };
@@ -455,8 +459,8 @@
           col_group_id: "integer, one or more column group ids",
           col_name: "string, column name",
           project_id: "integer, one or more project ids",
-          status:
-            "string, status of column, values 'active','in process','obsolete'",
+          status_code: statusCodeExplanation,
+          status: "same as status_code (deprecated signature)",
           all: "Return all column definitions",
           format: "Desired output format",
         },
diff --git a/v2/fossils.ts b/v2/fossils.ts
index 795f2c58..b37a5110 100644
--- a/v2/fossils.ts
+++ b/v2/fossils.ts
@@ -33,6 +33,7 @@ module.exports = function (req, res, next) {
             req.query.col_group_id ||
             req.query.strat_name_id ||
             req.query.strat_name_concept_id ||
+            req.query.project_id ||
             "sample" in req.query
           ) {
             callback(null, {
diff --git a/v2/units.ts b/v2/units.ts
index 595c2d2c..84365920 100644
--- a/v2/units.ts
+++ b/v2/units.ts
@@ -121,6 +121,7 @@ module.exports = function (req, res, next, cb) {
             }
           });
         } else if (req.query.col_id && req.query.adjacents) {
+          /** TODO: this can probably be improved with a spatial join instead of a subquery */
           var col_ids = larkin.parseMultipleIds(req.query.col_id),
             placeholders = col_ids.map(function (d, i) {
               return "$" + (i + 1);