diff --git a/2meet-data-optimizer-hivepress-addon.php b/2meet-data-optimizer-hivepress-addon.php
index 35cc1c6..d57a191 100644
--- a/2meet-data-optimizer-hivepress-addon.php
+++ b/2meet-data-optimizer-hivepress-addon.php
@@ -3,7 +3,7 @@
  * Plugin Name:       2meet Data Optimizer — Hivepress AddOn
  * Plugin URI:        https://2meet.io/2meet-data-optimizer/hivepress
  * Description:       HivePress + 12 擴充整合：13 adapter (core/reviews/bookings/messages/memberships/requests/favorites/statistics/tags/seo/social-links/blocks/marketplace) + 7 HPCT interceptor + 5 query interceptor + admin tab + CLI namespace
- * Version:           0.3.0
+ * Version:           0.4.0
  * Requires at least: 6.0
  * Tested up to:      6.9.4
  * Requires PHP:      8.1
@@ -24,7 +24,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 	exit;
 }
 
-define( 'TMDO_HIVEPRESS_VERSION', '0.3.0' );
+define( 'TMDO_HIVEPRESS_VERSION', '0.4.0' );
 define( 'TMDO_HIVEPRESS_PATH', plugin_dir_path( __FILE__ ) );
 define( 'TMDO_HIVEPRESS_URL', plugin_dir_url( __FILE__ ) );
 define( 'TMDO_HIVEPRESS_FILE', __FILE__ );
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f57af6e..a194023 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,45 @@ Versioning follows [Semantic Versioning](https://semver.org/).
 
 ---
 
+## [0.4.0] — 2026-09-27
+
+Released with 2meet-data-optimizer 1.3.0 (hardening 2.3).
+
+### Changed
+
+- `hp_listing_core` declares indexes on `hp_hourly_rate` and `hp_rating_count`
+  (HivePress filters and sorts on both). They are declared through the group's
+  `indexes`, not `searchable`, so the pinned schema hash is unchanged and the
+  table is not rebuilt; core 1.3.0 adds them in place from WP-CLI / WP-Cron.
+  dev36 (902k listings): two indexes in about 4.7 s; routed `rating_count IN`
+  2.1 s → 0.36 s, `rating_count !=` 2.1 s → 0.76 s, hourly rate + price sort
+  2.1 s → 0.65 s. (PR-090)
+- With a persistent object cache, transient entries now expire: a timeout
+  entry when it records, a value after at most a week (`MAX_CACHE_TTL`;
+  HivePress writes the value before its timeout, and a miss only makes it
+  rebuild). Entries of deleted posts no longer pile up. (PR-099)
+
+### Upgrading
+
+- Deploy with core 1.3.0: on an older core the AddOn declares no index at all
+  (core 1.2.0 would run the ALTER inside a web request). (PR-090b)
+- Redis: entries written by 0.3.0 have no TTL (dev36 had 3.0 M). Give them one
+  with non-blocking commands — never `wp cache flush-group`, which the Redis
+  Object Cache drop-in runs as one server-side script and which blocked Redis
+  on a large group. `NX` leaves entries written by 0.4.0 alone:
+
+  ```
+  redis-cli --scan --pattern '<WP_CACHE_KEY_SALT>wp:tmdo_hp_transient:*' \
+    | awk '{printf "EXPIRE %s 604800 NX\r\n", $0}' | redis-cli --pipe
+  ```
+
+  dev36: 3,013,352 keys in 45 s, 0 errors, Redis latency max 2 ms. The pattern
+  follows the drop-in's key layout (`<salt><blog prefix>:<group>:<key>`);
+  check it with `redis-cli --scan --pattern '<salt>*tmdo_hp_transient*' | head`
+  first. redis-cli 7 has no `--count` with `--scan`.
+
+---
+
 ## [0.3.0] — 2026-09-27
 
 Released with 2meet-data-optimizer 1.2.0 (hardening 2.2).