diff --git a/CHANGELOG.md b/CHANGELOG.md
index ddd09982..5607a1e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Zscaler Python SDK Changelog
 
+## 1.9.16 (February 16, 2025)
+
+### Notes
+
+- Python Versions: **v3.9, v3.10, v3.11, v3.12**
+
+### Bug Fixes:
+
+* [PR #460](https://github.com/zscaler/zscaler-sdk-python/pull/460) - Fixed URLCategory model assigning function reference instead of calling `form_list` for `regex_patterns` and `regex_patterns_retaining_parent_category`
+
 ## 1.9.15 (February 16, 2026)
 
 ### Notes
@@ -118,12 +128,6 @@
 
 - Python Versions: **v3.9, v3.10, v3.11, v3.12**
 
-## 1.9.9 (December 11, 2025)
-
-### Notes
-
-- Python Versions: **v3.9, v3.10, v3.11, v3.12**
-
 ### Bug Fixes:
 
 * [PR #439](https://github.com/zscaler/zscaler-sdk-python/pull/439) - Fixed ZPA legacy client `retry-after` header parsing for non-standard format with 's' suffix (e.g., `"8s"` instead of `"8"`).
diff --git a/docsrc/zs/guides/release_notes.rst b/docsrc/zs/guides/release_notes.rst
index b309bf87..42b62b86 100644
--- a/docsrc/zs/guides/release_notes.rst
+++ b/docsrc/zs/guides/release_notes.rst
@@ -6,8 +6,18 @@ Release Notes
 Zscaler Python SDK Changelog
 ----------------------------
 
+1.9.16 (February 16, 2026)
+---------------------------
+
+### Notes
+
+- Python Versions: **v3.9, v3.10, v3.11, v3.12**
+
+### Bug Fixes:
+
+(`#460 <https://github.com/zscaler/zscaler-sdk-python/pull/460>`_) - Fixed URLCategory model assigning function reference instead of calling `form_list` for `regex_patterns` and `regex_patterns_retaining_parent_category`
 
-1.9.15 (February 16, 2026)
+1.9.15 (February 13, 2026)
 ---------------------------
 
 Notes
diff --git a/zscaler/zia/models/urlcategory.py b/zscaler/zia/models/urlcategory.py
index a67ba670..6e8aad5f 100644
--- a/zscaler/zia/models/urlcategory.py
+++ b/zscaler/zia/models/urlcategory.py
@@ -40,11 +40,13 @@ def __init__(self, config: Optional[Dict[str, Any]] = None) -> None:
 
             self.urls = ZscalerCollection.form_list(config["urls"] if "urls" in config else [], str)
 
-            self.regex_patterns_retaining_parent_category = ZscalerCollection.form_list
-            (config["regexPatternsRetainingParentCategory"] if "regexPatternsRetainingParentCategory" in config else [], str)
+            self.regex_patterns_retaining_parent_category = ZscalerCollection.form_list(
+                config["regexPatternsRetainingParentCategory"] if "regexPatternsRetainingParentCategory" in config else [], str
+            )
 
-            self.regex_patterns = ZscalerCollection.form_list
-            (config["regexPatterns"]if "regexPatterns" in config else [], str)
+            self.regex_patterns = ZscalerCollection.form_list(
+                config["regexPatterns"] if "regexPatterns" in config else [], str
+            )
 
             self.db_categorized_urls = ZscalerCollection.form_list(
                 config["dbCategorizedUrls"] if "dbCategorizedUrls" in config else [], str