diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1743456..fd16222 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.45.0] - 2025-09-14
+## Added
+Exists form field filter
+
 ## [2.44.0] - 2025-08-26
 ## Added
 Position to TableRow entity
diff --git a/pyrus/models/entities.py b/pyrus/models/entities.py
index ef7cf1f..d984670 100644
--- a/pyrus/models/entities.py
+++ b/pyrus/models/entities.py
@@ -1213,6 +1213,20 @@ def __init__(self, field_id):
             __init__(field_id=field_id, operator='is_empty', values=[])
 
 
+class ExistsFilter(FormRegisterFilter):
+    """
+        Form register exists filter
+
+        Attributes:
+            field_id (:obj:`int`): Form field id
+    """
+
+    def __init__(self, field_id):
+        _validate_field_id(field_id)
+        super(ExistsFilter, self). \
+            __init__(field_id=field_id, operator='exists', values=[])
+
+
 class TaskList:
     """
         task list
diff --git a/pyrus/models/requests.py b/pyrus/models/requests.py
index decb9ac..a54802a 100644
--- a/pyrus/models/requests.py
+++ b/pyrus/models/requests.py
@@ -86,6 +86,8 @@ def __init__(self, steps=None, include_archived=None, filters=None, modified_bef
                         setattr(self, 'fld{}'.format(fltr.field_id), ",".join(str(x) for x in fltr.values))
                     if fltr.operator == 'is_empty':
                         setattr(self, 'fld{}'.format(fltr.field_id), 'empty')
+                    if fltr.operator == 'exists':
+                        setattr(self, 'fld{}'.format(fltr.field_id), '*')
                 if isinstance(fltr, entities.FormRegisterTaskIdFilter):
                     if fltr.operator == 'equals':
                         setattr(self, 'id', fltr.values)
diff --git a/pyrus/version.py b/pyrus/version.py
index 49b84f0..a61f5e3 100644
--- a/pyrus/version.py
+++ b/pyrus/version.py
@@ -1 +1 @@
-VERSION = "2.44.0"
+VERSION = "2.45.0"