diff --git a/Blacklight/Releases.php b/Blacklight/Releases.php
index c059285ff..e7ec8c4bf 100755
--- a/Blacklight/Releases.php
+++ b/Blacklight/Releases.php
@@ -333,35 +333,6 @@ class Releases extends Release
         return $temp_array;
     }
 
-    /**
-     * Cache of concatenated category ID's used in queries.
-     * @var null|array
-     */
-    private $concatenatedCategoryIDsCache = null;
-
-    /**
-     * Gets / sets a string of concatenated category ID's used in queries.
-     *
-     * @return array|null|string
-     */
-    public function getConcatenatedCategoryIDs()
-    {
-        if ($this->concatenatedCategoryIDsCache === null) {
-            $result = Category::query()
-                ->remember(config('nntmux.cache_expiry_long'))
-                ->whereNotNull('categories.root_categories_id')
-                ->whereNotNull('cp.id')
-                ->selectRaw('CONCAT(cp.id, ", ", categories.id) AS category_ids')
-                ->leftJoin('root_categories as cp', 'cp.id', '=', 'categories.root_categories_id')
-                ->get();
-            if (isset($result[0]['category_ids'])) {
-                $this->concatenatedCategoryIDsCache = $result[0]['category_ids'];
-            }
-        }
-
-        return $this->concatenatedCategoryIDsCache;
-    }
-
     /**
      * Get TV for My Shows page.
      *
@@ -380,7 +351,6 @@ class Releases extends Release
         $sql = sprintf(
             "SELECT r.id, r.searchname, r.guid, r.postdate, r.groups_id, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.videos_id, r.tv_episodes_id, r.haspreview, r.jpgstatus,  cp.title AS parent_category, c.title AS sub_category,
 					CONCAT(cp.title, '-', c.title) AS category_name,
-					%s AS category_ids,
 					g.name AS group_name,
 					rn.releases_id AS nfoid, re.releases_id AS reid,
 					tve.firstaired,
@@ -400,7 +370,6 @@ class Releases extends Release
 				%s
 				GROUP BY r.id
 				ORDER BY %s %s %s",
-            $this->getConcatenatedCategoryIDs(),
             $this->uSQL($userShows, 'videos_id'),
             (\count($excludedCats) ? ' AND r.categories_id NOT IN ('.implode(',', $excludedCats).')' : ''),
             NZB::NZB_ADDED,
@@ -636,7 +605,6 @@ class Releases extends Release
         $baseSql = sprintf(
             "SELECT r.searchname, r.guid, r.postdate, r.groups_id, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.videos_id, r.tv_episodes_id, r.haspreview, r.jpgstatus,  cp.title AS parent_category, c.title AS sub_category,
 				CONCAT(cp.title, ' > ', c.title) AS category_name,
-				%s AS category_ids,
 				df.failed AS failed,
 				g.name AS group_name,
 				rn.releases_id AS nfoid,
@@ -654,7 +622,6 @@ class Releases extends Release
 			LEFT JOIN root_categories cp ON cp.id = c.root_categories_id
 			LEFT OUTER JOIN dnzb_failures df ON df.release_id = r.id
 			%s %s",
-            $this->getConcatenatedCategoryIDs(),
             ! empty($tags) ? ' LEFT JOIN tagging_tagged tt ON tt.taggable_id = r.id' : '',
             $whereSql
         );
@@ -723,7 +690,6 @@ class Releases extends Release
         $baseSql = sprintf(
             "SELECT r.searchname, r.guid, r.postdate, r.groups_id, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.videos_id, r.tv_episodes_id, r.haspreview, r.jpgstatus, m.imdbid, m.tmdbid, m.traktid, cp.title AS parent_category, c.title AS sub_category,
 				CONCAT(cp.title, ' > ', c.title) AS category_name,
-				%s AS category_ids,
 				g.name AS group_name,
 				cp.id AS categoryparentid,
 				v.tvdb, v.trakt, v.tvrage, v.tvmaze, v.imdb, v.tmdb,
@@ -736,7 +702,6 @@ class Releases extends Release
 			LEFT JOIN categories c ON c.id = r.categories_id
 			LEFT JOIN root_categories cp ON cp.id = c.root_categories_id
 			%s %s",
-            $this->getConcatenatedCategoryIDs(),
             ! empty($tags) ? ' LEFT JOIN tagging_tagged tt ON tt.taggable_id = r.id' : '',
             $whereSql
         );
@@ -873,7 +838,6 @@ class Releases extends Release
 				tvi.summary, tvi.publisher, tvi.image,
 				tve.series, tve.episode, tve.se_complete, tve.title, tve.firstaired, tve.summary, cp.title AS parent_category, c.title AS sub_category,
 				CONCAT(cp.title, ' > ', c.title) AS category_name,
-				%s AS category_ids,
 				g.name AS group_name,
 				rn.releases_id AS nfoid,
 				re.releases_id AS reid
@@ -887,7 +851,6 @@ class Releases extends Release
 			LEFT OUTER JOIN video_data re ON re.releases_id = r.id
 			LEFT OUTER JOIN release_nfos rn ON rn.releases_id = r.id
 			%s %s",
-            $this->getConcatenatedCategoryIDs(),
             ! empty($tags) ? ' LEFT JOIN tagging_tagged tt ON tt.taggable_id = r.id' : '',
             $whereSql
         );
@@ -1016,7 +979,6 @@ class Releases extends Release
 				v.title, v.type, v.tvdb, v.trakt,v.imdb, v.tmdb, v.tvmaze, v.tvrage,
 				tve.series, tve.episode, tve.se_complete, tve.title, tve.firstaired, cp.title AS parent_category, c.title AS sub_category,
 				CONCAT(cp.title, ' > ', c.title) AS category_name,
-				%s AS category_ids,
 				g.name AS group_name
 			FROM releases r
 			LEFT OUTER JOIN videos v ON r.videos_id = v.id AND v.type = 0
@@ -1026,7 +988,6 @@ class Releases extends Release
 			LEFT JOIN root_categories cp ON cp.id = c.root_categories_id
 			LEFT JOIN usenet_groups g ON g.id = r.groups_id
 			%s %s",
-            $this->getConcatenatedCategoryIDs(),
             ! empty($tags) ? ' LEFT JOIN tagging_tagged tt ON tt.taggable_id = r.id' : '',
             $whereSql
         );
@@ -1089,7 +1050,6 @@ class Releases extends Release
         $baseSql = sprintf(
             "SELECT r.id, r.searchname, r.guid, r.postdate, r.groups_id, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.haspreview, r.jpgstatus,  cp.title AS parent_category, c.title AS sub_category,
 				CONCAT(cp.title, ' > ', c.title) AS category_name,
-				%s AS category_ids,
 				g.name AS group_name,
 				rn.releases_id AS nfoid,
 				re.releases_id AS reid
@@ -1100,7 +1060,6 @@ class Releases extends Release
 			LEFT OUTER JOIN release_nfos rn ON rn.releases_id = r.id
 			LEFT OUTER JOIN releaseextrafull re ON re.releases_id = r.id
 			%s",
-            $this->getConcatenatedCategoryIDs(),
             $whereSql
         );
         $sql = sprintf(
@@ -1168,7 +1127,6 @@ class Releases extends Release
         $baseSql = sprintf(
             "SELECT r.id, r.searchname, r.guid, r.postdate, r.groups_id, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.imdbid, r.videos_id, r.tv_episodes_id, r.haspreview, r.jpgstatus, m.imdbid, m.tmdbid, m.traktid, cp.title AS parent_category, c.title AS sub_category,
 				concat(cp.title, ' > ', c.title) AS category_name,
-				%s AS category_ids,
 				g.name AS group_name,
 				rn.releases_id AS nfoid
 			FROM releases r
@@ -1178,7 +1136,6 @@ class Releases extends Release
 			LEFT JOIN root_categories cp ON cp.id = c.root_categories_id
 			LEFT OUTER JOIN release_nfos rn ON rn.releases_id = r.id
 			%s %s",
-            $this->getConcatenatedCategoryIDs(),
             ! empty($tags) ? ' LEFT JOIN tagging_tagged tt ON tt.taggable_id = r.id' : '',
             $whereSql
         );
diff --git a/Blacklight/http/RSS.php b/Blacklight/http/RSS.php
index c519decff..0dce28e11 100755
--- a/Blacklight/http/RSS.php
+++ b/Blacklight/http/RSS.php
@@ -80,8 +80,7 @@ class RSS extends Capabilities
 					mug.title AS mu_genre, co.title AS co_title, co.url AS co_url,
 					co.publisher AS co_publisher, co.releasedate AS co_releasedate,
 					co.review AS co_review, co.cover AS co_cover, cog.title AS co_genre,
-					bo.cover AS bo_cover,
-					%s AS category_ids
+					bo.cover AS bo_cover
 				FROM releases r
 				LEFT JOIN categories c ON c.id = r.categories_id
 				INNER JOIN root_categories cp ON cp.id = c.root_categories_id
@@ -97,7 +96,6 @@ class RSS extends Capabilities
 				AND r.nzbstatus = %d
 				%s %s %s %s
 				ORDER BY postdate DESC %s",
-                $this->releases->getConcatenatedCategoryIDs(),
                 $cartSearch,
                 $this->releases->showPasswords(),
                 NZB::NZB_ADDED,
@@ -135,7 +133,6 @@ class RSS extends Capabilities
             "
 				SELECT r.searchname, r.guid, r.postdate, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.videos_id, r.tv_episodes_id, v.id, v.title, g.name AS group_name,
 					CONCAT(cp.title, '-', c.title) AS category_name,
-					%s AS category_ids,
 					COALESCE(cp.id,0) AS parentid
 				FROM releases r
 				LEFT JOIN categories c ON c.id = r.categories_id
@@ -148,7 +145,6 @@ class RSS extends Capabilities
 				AND r.categories_id BETWEEN %d AND %d
 				AND r.passwordstatus %s
 				ORDER BY postdate DESC %s",
-            $this->releases->getConcatenatedCategoryIDs(),
             $this->releases->uSQL(
                 UserSerie::fromQuery(
                     sprintf(
@@ -199,7 +195,6 @@ class RSS extends Capabilities
             "
 				SELECT r.searchname, r.guid, r.postdate, r.categories_id, r.size, r.totalpart, r.fromname, r.passwordstatus, r.grabs, r.comments, r.adddate, r.videos_id, r.tv_episodes_id, mi.title AS releasetitle, g.name AS group_name,
 					CONCAT(cp.title, '-', c.title) AS category_name,
-					%s AS category_ids,
 					COALESCE(cp.id,0) AS parentid
 				FROM releases r
 				LEFT JOIN categories c ON c.id = r.categories_id
@@ -211,7 +206,6 @@ class RSS extends Capabilities
 				AND r.categories_id BETWEEN %d AND %d
 				AND r.passwordstatus %s
 				ORDER BY postdate DESC %s",
-            $this->releases->getConcatenatedCategoryIDs(),
             $this->releases->uSQL(
                 UserMovie::fromQuery(
                     sprintf(
diff --git a/Changelog b/Changelog
index ce8af3c4d..a21c575f0 100755
--- a/Changelog
+++ b/Changelog
@@ -1,4 +1,5 @@
 2019-08-29 DariusIII
+	* Chg: Remove getConcatenatedCategoryIDs function
 	* Chg: Remove rest of the rememberable trait usages
 2019-08-28 DariusIII
 	* Chg: Start removing watson/rememberable usage