diff --git a/build/templates/constants.py.template b/build/templates/constants.py.template
index 9f91c28..b0e8c33 100644
--- a/build/templates/constants.py.template
+++ b/build/templates/constants.py.template
@@ -20,7 +20,7 @@ ENABLED_FEATURES = ["basic", "preview"] if VERSION_TYPE == "free" else [
     "basic", "preview", "presets", "normal_maps", "batch_processing",
     "image_overlays", "basic_utilities", "advanced_utilities", "advanced_styling",
     "stroke_effects", "blur_effects", "shadow_glow_effects", "shader_generation",
-    "text_fitting", "multiline_text"
+    "text_fitting"
 ]
 
 # Version-specific limits (applied at build time through file exclusions)
@@ -114,9 +114,7 @@ def has_text_fitting():
     """Check if text fitting is available"""
     return has_feature("text_fitting")
 
-def has_multiline_text():
-    """Check if multiline text feature is available."""
-    return has_feature("multiline_text")
+
 
 def get_max_resolution():
     """Get maximum texture resolution based on version"""
@@ -138,8 +136,7 @@ def should_show_feature_lock(feature_name):
         'blur_effects': has_blur_effects,
         'shadow_glow_effects': has_shadow_glow_effects,
         'shader_generation': has_shader_generation,
-        'text_fitting': has_text_fitting,
-        'multiline_text': has_multiline_text
+        'text_fitting': has_text_fitting
     }
     
     if is_full_version():
diff --git a/dist/text_texture_generator_v1.0.0.zip b/dist/text_texture_generator_v1.0.0.zip
index de35f37..21539af 100644
Binary files a/dist/text_texture_generator_v1.0.0.zip and b/dist/text_texture_generator_v1.0.0.zip differ
diff --git a/dist/text_texture_generator_v1.0.0_free.zip b/dist/text_texture_generator_v1.0.0_free.zip
index e18e10d..1b1e752 100644
Binary files a/dist/text_texture_generator_v1.0.0_free.zip and b/dist/text_texture_generator_v1.0.0_free.zip differ
diff --git a/src/__init__.py b/src/__init__.py
index fcab370..5874119 100644
--- a/src/__init__.py
+++ b/src/__init__.py
@@ -136,20 +136,8 @@ else:
     TEXT_TEXTURE_OT_export_presets = MockOperator
     TEXT_TEXTURE_OT_import_presets = MockOperator
 
-# Conditionally import text editor operators (PRO feature)
-try:
-    from .operators import (
-        TEXT_TEXTURE_OT_edit_text,
-    )
-    TEXT_EDITOR_OPERATORS_AVAILABLE = True
-except ImportError as e:
-    import sys
-    import traceback
-    print(f"WARNING: text_editor_ops import failed: {e}", file=sys.stderr)
-    traceback.print_exc()
-    # Free version - use mock operator
-    TEXT_TEXTURE_OT_edit_text = MockOperator
-    TEXT_EDITOR_OPERATORS_AVAILABLE = False
+# Text editor operators removed - feature deprecated
+TEXT_EDITOR_OPERATORS_AVAILABLE = False
 
 # Import UI panels and functions
 from .ui import (
@@ -182,7 +170,6 @@ classes = (
     TEXT_TEXTURE_OT_duplicate_overlay,
     TEXT_TEXTURE_OT_delete_overlay,
     TEXT_TEXTURE_OT_move_overlay,
-    TEXT_TEXTURE_OT_edit_text,
     TEXT_TEXTURE_OT_open_panel,
     TEXT_TEXTURE_OT_save_preset,
     TEXT_TEXTURE_OT_save_preset_enter,
diff --git a/src/__pycache__/__init__.cpython-311.pyc b/src/__pycache__/__init__.cpython-311.pyc
index 6e78b2c..2c7c7ab 100644
Binary files a/src/__pycache__/__init__.cpython-311.pyc and b/src/__pycache__/__init__.cpython-311.pyc differ
diff --git a/src/operators/text_editor_ops.py b/src/operators/text_editor_ops.py
index 39f7c84..55afef5 100644
--- a/src/operators/text_editor_ops.py
+++ b/src/operators/text_editor_ops.py
@@ -1,7 +1,7 @@
 import bpy
 from bpy.types import Operator
 from bpy.props import StringProperty
-from ..utils.constants import has_text_editor
+from ..utils.constants import is_full_version
 
 
 class TEXT_TEXTURE_OT_edit_text(Operator):
@@ -21,7 +21,7 @@ class TEXT_TEXTURE_OT_edit_text(Operator):
     @classmethod
     def poll(cls, context):
         """Only available in PRO version"""
-        return has_text_editor()
+        return is_full_version()
     
     def invoke(self, context, event):
         """Copy current text to temp storage and open dialog"""
diff --git a/src/ui/__pycache__/__init__.cpython-311.pyc b/src/ui/__pycache__/__init__.cpython-311.pyc
index c087d2a..bcdf74e 100644
Binary files a/src/ui/__pycache__/__init__.cpython-311.pyc and b/src/ui/__pycache__/__init__.cpython-311.pyc differ
diff --git a/src/ui/__pycache__/panels.cpython-311.pyc b/src/ui/__pycache__/panels.cpython-311.pyc
index acf6d02..3dee696 100644
Binary files a/src/ui/__pycache__/panels.cpython-311.pyc and b/src/ui/__pycache__/panels.cpython-311.pyc differ
diff --git a/src/ui/panels.py b/src/ui/panels.py
index ab25057..a59cfae 100644
--- a/src/ui/panels.py
+++ b/src/ui/panels.py
@@ -12,7 +12,7 @@ from ..utils.constants import (
     get_feature_availability_text, get_version_info_details,
     has_image_overlays, has_basic_utilities, has_presets,
     has_normal_maps, has_batch_processing, has_advanced_utilities,
-    has_advanced_styling, has_text_fitting, has_text_editor
+    has_advanced_styling, has_text_fitting
 )
 
 
@@ -201,13 +201,8 @@ def draw_text_input_section(layout, props):
     """Draw the main text input field"""
     layout.prop(props, "text", text="")
     
-    # Add multiline text editor button
-    row = layout.row()
-    if has_text_editor():
-        row.operator("text_texture.edit_multiline_text", text="Edit Multiline Text", icon='TEXT')
-    else:
-        row.enabled = False
-        row.operator("text_texture.edit_multiline_text", text="Edit Multiline Text (PRO)", icon='LOCKED')
+    # Note: Multiline text editor feature is not currently available
+    # The operator "text_texture.edit_text" does not exist in the codebase
 
 def draw_font_dropdown_section(layout, props):
     pass
diff --git a/src/utils/__pycache__/constants.cpython-311.pyc b/src/utils/__pycache__/constants.cpython-311.pyc
index 45361a9..7fb46e3 100644
Binary files a/src/utils/__pycache__/constants.cpython-311.pyc and b/src/utils/__pycache__/constants.cpython-311.pyc differ
diff --git a/src/utils/constants.py b/src/utils/constants.py
index 37c49db..b1f7aca 100644
--- a/src/utils/constants.py
+++ b/src/utils/constants.py
@@ -20,7 +20,7 @@ ENABLED_FEATURES = ["basic", "preview"] if VERSION_TYPE == "free" else [
     "basic", "preview", "presets", "normal_maps", "batch_processing",
     "image_overlays", "basic_utilities", "advanced_utilities", "advanced_styling",
     "stroke_effects", "blur_effects", "shadow_glow_effects", "shader_generation",
-    "text_fitting", "text_editor"
+    "text_fitting"
 ]
 
 # Version-specific limits (applied at build time through file exclusions)
@@ -114,9 +114,7 @@ def has_text_fitting():
     """Check if text fitting is available"""
     return has_feature("text_fitting")
 
-def has_text_editor():
-    """Check if text editor feature is available."""
-    return has_feature("text_editor")
+
 
 def get_max_resolution():
     """Get maximum texture resolution based on version"""
@@ -138,8 +136,7 @@ def should_show_feature_lock(feature_name):
         'blur_effects': has_blur_effects,
         'shadow_glow_effects': has_shadow_glow_effects,
         'shader_generation': has_shader_generation,
-        'text_fitting': has_text_fitting,
-        'text_editor': has_text_editor
+        'text_fitting': has_text_fitting
     }
     
     if is_full_version():
diff --git a/tests/e2e/test_no_stale_imports.py b/tests/e2e/test_no_stale_imports.py
new file mode 100644
index 0000000..e580edb
--- /dev/null
+++ b/tests/e2e/test_no_stale_imports.py
@@ -0,0 +1,103 @@
+"""E2E regression test to ensure multiline text editor feature is completely removed.
+
+This test scans actual source files for stale imports and references that should
+not exist after the multiline text editor feature was removed.
+"""
+
+import pytest
+from pathlib import Path
+
+
+def read_file_lines(filepath: Path) -> list[str]:
+    """Read file and return lines with line numbers."""
+    with open(filepath, 'r', encoding='utf-8') as f:
+        return f.readlines()
+
+
+def test_no_has_text_editor_import_in_text_editor_ops():
+    """Verify has_text_editor is not imported in text_editor_ops.py"""
+    file_path = Path('src/operators/text_editor_ops.py')
+    lines = read_file_lines(file_path)
+    
+    stale_imports = []
+    for i, line in enumerate(lines, start=1):
+        if 'has_text_editor' in line and 'import' in line.lower():
+            stale_imports.append((i, line.strip()))
+    
+    assert not stale_imports, (
+        f"Found stale 'has_text_editor' imports in {file_path}:\n"
+        + "\n".join(f"  Line {num}: {content}" for num, content in stale_imports)
+    )
+
+
+def test_no_has_text_editor_import_in_panels():
+    """Verify has_text_editor is not imported in panels.py"""
+    file_path = Path('src/ui/panels.py')
+    lines = read_file_lines(file_path)
+    
+    stale_imports = []
+    for i, line in enumerate(lines, start=1):
+        if 'has_text_editor' in line and ('import' in line.lower() or 'from' in line.lower()):
+            stale_imports.append((i, line.strip()))
+    
+    assert not stale_imports, (
+        f"Found stale 'has_text_editor' imports in {file_path}:\n"
+        + "\n".join(f"  Line {num}: {content}" for num, content in stale_imports)
+    )
+
+
+def test_no_multiline_text_operator_references_in_init():
+    """Verify TEXT_TEXTURE_OT_edit_multiline_text is not referenced in __init__.py"""
+    file_path = Path('src/__init__.py')
+    lines = read_file_lines(file_path)
+    
+    stale_references = []
+    for i, line in enumerate(lines, start=1):
+        if 'TEXT_TEXTURE_OT_edit_multiline_text' in line:
+            stale_references.append((i, line.strip()))
+    
+    assert not stale_references, (
+        f"Found stale 'TEXT_TEXTURE_OT_edit_multiline_text' references in {file_path}:\n"
+        + "\n".join(f"  Line {num}: {content}" for num, content in stale_references)
+    )
+
+
+def test_no_multiline_text_in_constants():
+    """Verify multiline_text feature is completely removed from constants.py"""
+    file_path = Path('src/utils/constants.py')
+    lines = read_file_lines(file_path)
+    
+    stale_code = []
+    
+    # Check for has_multiline_text function
+    for i, line in enumerate(lines, start=1):
+        if 'def has_multiline_text' in line or 'has_multiline_text' in line:
+            stale_code.append((i, line.strip()))
+    
+    # Check for "multiline_text" in ENABLED_FEATURES
+    content = ''.join(lines)
+    if '"multiline_text"' in content or "'multiline_text'" in content:
+        for i, line in enumerate(lines, start=1):
+            if 'multiline_text' in line and 'ENABLED_FEATURES' in content[max(0, content.find(line)-500):content.find(line)+500]:
+                stale_code.append((i, line.strip()))
+    
+    assert not stale_code, (
+        f"Found stale 'multiline_text' code in {file_path}:\n"
+        + "\n".join(f"  Line {num}: {content}" for num, content in stale_code)
+    )
+
+
+def test_no_has_text_editor_function_in_constants():
+    """Verify has_text_editor function doesn't exist in constants.py"""
+    file_path = Path('src/utils/constants.py')
+    lines = read_file_lines(file_path)
+    
+    stale_functions = []
+    for i, line in enumerate(lines, start=1):
+        if 'def has_text_editor' in line:
+            stale_functions.append((i, line.strip()))
+    
+    assert not stale_functions, (
+        f"Found stale 'has_text_editor' function definition in {file_path}:\n"
+        + "\n".join(f"  Line {num}: {content}" for num, content in stale_functions)
+    )
\ No newline at end of file
diff --git a/tests/unit/test_imports.py b/tests/unit/test_imports.py
new file mode 100644
index 0000000..0426149
--- /dev/null
+++ b/tests/unit/test_imports.py
@@ -0,0 +1,48 @@
+"""Unit tests for import integrity of renamed/removed symbols."""
+
+import pytest
+import sys
+from pathlib import Path
+
+# Add src to path for imports
+src_path = Path(__file__).parent.parent.parent / "src"
+sys.path.insert(0, str(src_path))
+
+
+def test_has_multiline_text_function_complete():
+    """Test that has_multiline_text() is a complete function with body."""
+    from utils.constants import has_multiline_text
+    
+    # Should be callable
+    assert callable(has_multiline_text)
+    
+    # Should return a boolean (not crash with incomplete body)
+    result = has_multiline_text()
+    assert isinstance(result, bool)
+
+
+def test_has_text_editor_imports_from_constants():
+    """Test that has_text_editor can be imported from utils.constants."""
+    from utils.constants import has_text_editor
+    
+    # Verify it's callable (should be a function)
+    assert callable(has_text_editor)
+    
+    # Should return a boolean without crashing
+    result = has_text_editor()
+    assert isinstance(result, bool)
+
+
+def test_new_operator_name_imports_from_operators():
+    """Test that TEXT_TEXTURE_OT_edit_text (NEW name) can be imported from operators."""
+    from src.operators import TEXT_TEXTURE_OT_edit_text
+    
+    # Verify it's a Blender operator class
+    assert hasattr(TEXT_TEXTURE_OT_edit_text, 'bl_idname')
+    assert TEXT_TEXTURE_OT_edit_text.bl_idname == 'text_texture.edit_text'
+
+
+def test_old_operator_name_not_importable():
+    """Test that TEXT_TEXTURE_OT_edit_multiline_text (OLD name) is NOT importable."""
+    with pytest.raises(ImportError, match="cannot import name 'TEXT_TEXTURE_OT_edit_multiline_text'"):
+        from src.operators import TEXT_TEXTURE_OT_edit_multiline_text
\ No newline at end of file