docs: note metadata catalog escaping configuration in changelog

Signed-off-by: Vu Anh Phung <vu.phung@databricks.com>

Author: vuanhphung

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Release History
 
+# Unreleased
+- Add the `escape_catalog_name` connection parameter (default `False`) to opt in to escaping unescaped `_` in metadata catalog names on Thrift and kernel connections. Existing escapes and `%` wildcards are preserved.
+
 # 4.6.0 (2026-09-24)
 - Upgrade Databricks SQL Kernel to 1.1.0; the kernel dependency is now stable and no longer experimental.
 - Transparently auto-recover Thrift connections to Reyden / Real-Time warehouses: when a warehouse rejects the default Thrift protocol (SQLSTATE `KP001`), the session is re-opened on the kernel backend and the warehouse is remembered so later connections skip Thrift. Applies only when no backend was chosen explicitly.