diff --git a/src/monday_sdk/types/monday_enums.py b/src/monday_sdk/types/monday_enums.py
index a717c1c..0823b57 100644
--- a/src/monday_sdk/types/monday_enums.py
+++ b/src/monday_sdk/types/monday_enums.py
@@ -1,8 +1,12 @@
+from __future__ import annotations
+
 from enum import Enum
 
 
 class ColumnType(Enum):
     AUTO_NUMBER = "auto_number"  # Number items according to their order in the group/board
+    BOARD_RELATION = "board_relation"  # Link items between boards
+    BUTTON = "button"  # Trigger automations or integrations from a button
     CHECKBOX = "checkbox"  # Check off items and see what's done at a glance
     COUNTRY = "country"  # Choose a country
     COLOR_PICKER = "color_picker"  # Manage a design system using a color palette
@@ -12,18 +16,24 @@ class ColumnType(Enum):
     DROPDOWN = "dropdown"  # Create a dropdown list of options
     EMAIL = "email"  # Email team members and clients directly from your board
     FILE = "file"  # Add files & docs to your item
+    FORMULA = "formula"  # Computed values from other columns
     HOUR = "hour"  # Add times to manage and schedule tasks, shifts and more
     ITEM_ID = "item_id"  # Show a unique ID for each item
     LAST_UPDATED = "last_updated"  # Add the person that last updated the item and the date
     LINK = "link"  # Simply hyperlink to any website
     LOCATION = "location"  # Place multiple locations on a geographic map
     LONG_TEXT = "long_text"  # Add large amounts of text without changing column width
+    MIRROR = "mirror"  # Mirror values from a connected board
     NUMBERS = "numbers"  # Add revenue, costs, time estimations and more
     PEOPLE = "people"  # Assign people to improve team work
     PHONE = "phone"  # Call your contacts directly from monday.com
     PROGRESS = "progress"  # Show progress by combining status columns in a battery
+    PULSE_ID = "pulse_id"  # Legacy alias for the item-id column
+    PULSE_LOG = "pulse_log"  # Activity log for the item
+    PULSE_UPDATED_VALUE = "pulse_updated_value"  # Last-updated value summary for the item
     RATING = "rating"  # Rate or rank anything visually
     STATUS = "status"  # Get an instant overview of where things stand
+    SUBTASKS = "subtasks"  # Manage subitems on the row
     TEAM = "team"  # Assign a full team to an item
     TAGS = "tags"  # Add tags to categorize items across multiple boards
     TEXT = "text"  # Add textual information e.g. addresses, names or keywords
@@ -33,6 +43,39 @@ class ColumnType(Enum):
     WEEK = "week"  # Select the week on which each item should be completed
     WORLD_CLOCK = "world_clock"  # Keep track of the time anywhere in the world
 
+    @property
+    def is_readonly(self) -> bool:
+        """True if column_values mutations cannot write to this column type."""
+        return self in _READONLY_COLUMN_TYPES
+
+    @property
+    def is_writable(self) -> bool:
+        return not self.is_readonly
+
+
+# people / multiple-person / location are intentionally excluded — they
+# accept column_values writes but require typed payloads (people IDs,
+# lat/lng) rather than free text.
+_READONLY_COLUMN_TYPES: frozenset[ColumnType] = frozenset(
+    {
+        ColumnType.AUTO_NUMBER,
+        ColumnType.BOARD_RELATION,
+        ColumnType.BUTTON,
+        ColumnType.CREATION_LOG,
+        ColumnType.DEPENDENCY,
+        ColumnType.FILE,
+        ColumnType.FORMULA,
+        ColumnType.ITEM_ID,
+        ColumnType.LAST_UPDATED,
+        ColumnType.MIRROR,
+        ColumnType.PROGRESS,
+        ColumnType.PULSE_ID,
+        ColumnType.PULSE_LOG,
+        ColumnType.PULSE_UPDATED_VALUE,
+        ColumnType.SUBTASKS,
+    }
+)
+
 
 class Operator(Enum):
     GREATER_THAN_OR_EQUALS = "greater_than_or_equals"