diff --git a/CHANGELOG.md b/CHANGELOG.md
index c659a6b..a447d88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.7.38] - 2026-05-29
+
+### Fixed
+
+- **SABnzbd History Legacy Slot Name Compatibility (Issue #74)** — Hardened SABnzbd active-download and history slot title matching in `DownloadMatcher.js` to support all slot name property variations (`filename`, `nzbname`, `name`, `nzb_name`). This ensures history matching succeeds against cached/legacy data schemas where the name is stored solely under the `filename` property, preventing completed downloads awaiting import from incorrectly displaying as `"Unknown"` client cards. Added unit tests for legacy `filename` slot matching compatibility.
+
 ## [1.7.37] - 2026-05-29
 
 ### Fixed
diff --git a/package-lock.json b/package-lock.json
index 0ba6824..f603434 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "sofarr",
-  "version": "1.7.37",
+  "version": "1.7.38",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "sofarr",
-      "version": "1.7.37",
+      "version": "1.7.38",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.6.0",
diff --git a/package.json b/package.json
index 12927ab..fc89a70 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sofarr",
-  "version": "1.7.37",
+  "version": "1.7.38",
   "description": "A personal media download dashboard that shows your downloads 'so far' while you relax on the sofa waiting for your *arr services to finish",
   "main": "server/index.js",
   "scripts": {
diff --git a/server/app.js b/server/app.js
index 025be49..564ffe9 100644
--- a/server/app.js
+++ b/server/app.js
@@ -133,7 +133,7 @@ function createApp({ skipRateLimits = false } = {}) {
    *                 version:
    *                   type: string
    *                   description: sofarr version
-   *                   example: "1.7.37"
+   *                   example: "1.7.38"
    *     x-code-samples:
    *       - lang: curl
    *         label: cURL
diff --git a/server/openapi.yaml b/server/openapi.yaml
index b11a17b..91a3790 100644
--- a/server/openapi.yaml
+++ b/server/openapi.yaml
@@ -22,7 +22,7 @@ info:
 
     ## SSE Streaming
     Real-time updates are available via Server-Sent Events at GET /api/dashboard/stream.
-  version: 1.7.37
+  version: 1.7.38
   contact:
     name: sofarr
   license:
diff --git a/server/services/DownloadMatcher.js b/server/services/DownloadMatcher.js
index 09c719a..3aaf259 100644
--- a/server/services/DownloadMatcher.js
+++ b/server/services/DownloadMatcher.js
@@ -290,7 +290,7 @@ async function matchSabSlots(slots, context) {
 
   const matched = [];
   for (const slot of slots) {
-    const nzbName = slot.filename || slot.nzbname;
+    const nzbName = slot.filename || slot.nzbname || slot.name || slot.nzb_name;
     if (!nzbName) continue;
 
     const slotState = getSlotStatusAndSpeed(slot, queueStatus, queueSpeed, queueKbpersec);
@@ -347,7 +347,7 @@ async function matchSabHistory(slots, context) {
   const matched = [];
 
   for (const slot of slots) {
-    const nzbName = slot.name || slot.nzb_name || slot.nzbname;
+    const nzbName = slot.filename || slot.nzbname || slot.name || slot.nzb_name;
     if (!nzbName) continue;
 
     const sabDownloadId = slot.nzo_id || slot.id;
diff --git a/tests/unit/services/DownloadMatcher.test.js b/tests/unit/services/DownloadMatcher.test.js
index 038470e..4d20705 100644
--- a/tests/unit/services/DownloadMatcher.test.js
+++ b/tests/unit/services/DownloadMatcher.test.js
@@ -263,6 +263,24 @@ describe('DownloadMatcher', () => {
       expect(result[0].arrQueueId).toBe(301);
       expect(result[0].arrType).toBe('radarr');
     });
+
+    it('matches when history slots only have the filename field (cached legacy format)', async () => {
+      const testContext = {
+        ...context,
+        sonarrHistoryRecords: [],
+        sonarrQueueRecords: [
+          { id: 201, seriesId: 1, title: 'My.Cool.Show.S01E01.720p-Group' }
+        ],
+        seriesMap: new Map([[1, { id: 1, title: 'My Cool Show', tags: [1] }]])
+      };
+
+      const slots = [{ id: null, filename: 'My_Cool_Show_S01E01_720p-Group.nzb', status: 'Completed', mb: 1000 }];
+      const result = await DownloadMatcher.matchSabHistory(slots, testContext);
+
+      expect(result).toHaveLength(1);
+      expect(result[0].arrQueueId).toBe(201);
+      expect(result[0].arrType).toBe('sonarr');
+    });
   });
 
   describe('titleMatches helper', () => {