diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16a19f0..ad89ed2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,7 +22,13 @@ Versioning follows [Semantic Versioning](https://semver.org/).
   索引。filter：`tmdo_schema_ddl_allowed`。dev36 90 萬列加兩個索引約 4.7 s。（PR-090a）
 - **路由搜尋的 found rows**：帶 `post__not_in` 的查詢（HivePress 每頁送一組隨機排除清單）
   改為「不含排除條件的 COUNT（快取）」減去「排除清單中符合條件的篇數（主鍵查詢）」，結果
-  精確，快取不再被打散。dev36 關鍵字 + 價格：首次 5.25 s、之後 3.2 s（原生 3.35 s）。（PR-091）
+  精確，快取不再被打散。（PR-091）快取 key 另外去掉 wpdb 替 `%` 產生的 placeholder escape
+  （每個請求不同，關鍵字搜尋原本永遠不命中，也就是 2.2 驗收「關鍵字 + 篩選 routed 較慢」的
+  原因）（PR-116）；計數改跟隨自有的 `tmdo_posts` last_changed（文章儲存／刪除、經 Hook Bus
+  的扁平寫入）與 terms 的 last_changed，不再跟隨 posts 的 last_changed——任何 post meta 寫入
+  都會推動它，dev36 的 Blocksy 佈景在爬蟲瀏覽每篇 listing 時都寫一筆 meta，快取幾秒就失效
+  （PR-117）。dev36 關鍵字 + 價格 routed 9.8 s → 首次後約 5.5 s（原生 5.0–6.2 s，剩餘為
+  WordPress 核心的 LIKE 全表掃描）。
 - `POST /wpdo/v1/listings/{id}/view` 被限流擋下時，`wpdo_rl_stats` 改為 1/10 抽樣寫入
   （每次 +10），匿名請求不再 1:1 放大成 option 寫入。（PR-094）
 - `TMDO_Logger::info()` 只在 `WP_DEBUG_LOG` 時寫 error_log（filter `tmdo_log_info`）；
diff --git a/readme.txt b/readme.txt
index d847b02..5fd9835 100644
--- a/readme.txt
+++ b/readme.txt
@@ -109,7 +109,7 @@ The Classifier tab analyzes your existing `wp_postmeta` data (access frequency,
 
 = 1.3.0 =
 * Declared flat-table indexes are added only from WP-CLI or WP-Cron, one process at a time (MySQL GET_LOCK); web requests schedule `tmdo_ensure_group_indexes`, and doctor lists indexes not added yet
-* Routed searches with post__not_in count from a cached base count minus the excluded posts (HivePress keyword + price search no longer slower than native)
+* Routed searches with post__not_in count from a cached base count minus the excluded posts; the cache key ignores wpdb's per-request placeholder escape and follows post saves and managed-key writes only, not every post meta write (HivePress keyword + price search no longer slower than native)
 * Rate-limited view requests sample their statistics (1 in 10) instead of writing an option each time
 * Logger info / notice lines only with WP_DEBUG_LOG (filter `tmdo_log_info`)
 * The public listings REST output withholds email, phone, address and IP fields even when declared public