diff --git a/packages/components/releaseNotes/components.md b/packages/components/releaseNotes/components.md
index 6e6ae577c2..e9082cbe26 100644
--- a/packages/components/releaseNotes/components.md
+++ b/packages/components/releaseNotes/components.md
@@ -1,6 +1,9 @@
 # @labkey/components
 Components, models, actions, and utility functions for LabKey applications and pages
 
+### version TBD
+- Remove support for discussions in lists
+
 ### version 7.7.0
 *Released*: 29 December 2025
 - Workflow Automation: Task action to filter samples for selected task
diff --git a/packages/components/src/internal/app/constants.ts b/packages/components/src/internal/app/constants.ts
index 49f641d27a..531745460c 100644
--- a/packages/components/src/internal/app/constants.ts
+++ b/packages/components/src/internal/app/constants.ts
@@ -112,7 +112,6 @@ export const EXPERIMENTAL_PRODUCT_ALL_FOLDER_LOOKUPS = 'queryProductAllFolderLoo
 export const EXPERIMENTAL_PRODUCT_FOLDER_DATA_LISTING_SCOPED = 'queryProductProjectDataListingScoped';
 export const EXPERIMENTAL_REQUESTS_MENU = 'experimental-biologics-requests-menu';
 export const EXPERIMENTAL_SAMPLE_ALIQUOT_SELECTOR = 'experimental-sample-aliquot-selector';
-export const DEPRECATED_OBJECT_LEVEL_DISCUSSIONS = 'deprecatedObjectLevelDiscussions';
 
 export const FOLDER_DATA_TYPE_EXCLUSIONS = 'dataTypeExclusions';
 export const ARCHIVED_FOLDERS = 'archivedContainers';
diff --git a/packages/components/src/internal/app/utils.ts b/packages/components/src/internal/app/utils.ts
index 0d69898ea3..7951db1094 100644
--- a/packages/components/src/internal/app/utils.ts
+++ b/packages/components/src/internal/app/utils.ts
@@ -24,7 +24,6 @@ import {
     ARCHIVED_FOLDERS,
     ASSAYS_KEY,
     BIOLOGICS_APP_PROPERTIES,
-    DEPRECATED_OBJECT_LEVEL_DISCUSSIONS,
     EXPERIMENTAL_PRODUCT_ALL_FOLDER_LOOKUPS,
     EXPERIMENTAL_PRODUCT_FOLDER_DATA_LISTING_SCOPED,
     EXPERIMENTAL_REQUESTS_MENU,
@@ -417,10 +416,6 @@ export function isSampleAliquotSelectorEnabled(moduleContext?: ModuleContext): b
     return resolveModuleContext(moduleContext)?.samplemanagement?.[EXPERIMENTAL_SAMPLE_ALIQUOT_SELECTOR] === true;
 }
 
-export function isObjectLevelDiscussionsEnabled(moduleContext?: ModuleContext): boolean {
-    return resolveModuleContext(moduleContext)?.core?.[DEPRECATED_OBJECT_LEVEL_DISCUSSIONS] === true;
-}
-
 export function hasModule(moduleName: string, moduleContext?: ModuleContext): boolean {
     return resolveModuleContext(moduleContext).api?.moduleNames?.indexOf(moduleName.toLowerCase()) >= 0;
 }
diff --git a/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.test.tsx b/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.test.tsx
index 13f70db583..da3abb3e07 100644
--- a/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.test.tsx
+++ b/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.test.tsx
@@ -13,21 +13,13 @@ import getDomainDetailsJSON from '../../../../test/data/list-getDomainDetails.js
 
 import { DomainField } from '../models';
 
-import { AdvancedSettings, DisplayTitle, SearchIndexing, IndexField } from './ListPropertiesAdvancedSettings';
+import { AdvancedSettings, DisplayTitle, IndexField, SearchIndexing } from './ListPropertiesAdvancedSettings';
 import { ListModel } from './models';
 
 const emptyNewModel = ListModel.create(null, DEFAULT_LIST_SETTINGS);
 const populatedExistingModel = ListModel.create(getDomainDetailsJSON);
 
 describe('AdvancedSettings', () => {
-    beforeEach(() => {
-        LABKEY.moduleContext = {
-            core: {
-                deprecatedObjectLevelDiscussions: false,
-            },
-        };
-    });
-
     test('default properties', () => {
         const advancedSettings = (
             <AdvancedSettings title="Advanced Settings" model={emptyNewModel} applyAdvancedProperties={jest.fn()} />
diff --git a/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.tsx b/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.tsx
index c600dbe038..082687613d 100644
--- a/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.tsx
+++ b/packages/components/src/internal/components/domainproperties/list/ListPropertiesAdvancedSettings.tsx
@@ -3,7 +3,7 @@ import classNames from 'classnames';
 
 import { Modal } from '../../../Modal';
 
-import { getSubmitButtonClass, isObjectLevelDiscussionsEnabled } from '../../../app/utils';
+import { getSubmitButtonClass } from '../../../app/utils';
 
 import { DomainFieldLabel } from '../DomainFieldLabel';
 
@@ -33,8 +33,6 @@ export const DISPLAY_TITLE_TIP = (
         </ul>
     </>
 );
-export const DISCUSSION_LINKS_TIP =
-    'Optionally allow one or more discussion links to be shown on the details view of each list item.';
 export const SEARCH_INDEXING_TIP = 'Controls how this list is indexed for search within LabKey Server.';
 
 interface DisplayTitleProps {
@@ -66,45 +64,6 @@ export const DisplayTitle: FC<DisplayTitleProps> = memo(({ model, onSelectChange
 });
 DisplayTitle.displayName = 'DisplayTitle';
 
-interface DiscussionLinksProps {
-    discussionSetting: number;
-    onRadioChange: (evt: any) => void;
-}
-
-// TODO: use RadioGroupInput instead
-const DISCUSSION_RADIO_NAME = 'discussionSetting';
-const DiscussionInputs: FC<DiscussionLinksProps> = memo(({ onRadioChange, discussionSetting }) => (
-    <div className="form-group">
-        <DomainDesignerRadio
-            name={DISCUSSION_RADIO_NAME}
-            value={0}
-            checked={discussionSetting === 0}
-            onChange={onRadioChange}
-        >
-            Disable discussions
-        </DomainDesignerRadio>
-
-        <DomainDesignerRadio
-            name={DISCUSSION_RADIO_NAME}
-            value={1}
-            checked={discussionSetting === 1}
-            onChange={onRadioChange}
-        >
-            Allow one discussion per item
-        </DomainDesignerRadio>
-
-        <DomainDesignerRadio
-            name={DISCUSSION_RADIO_NAME}
-            value={2}
-            checked={discussionSetting === 2}
-            onChange={onRadioChange}
-        >
-            Allow multiple discussions per item
-        </DomainDesignerRadio>
-    </div>
-));
-DiscussionInputs.displayName = 'DiscussionInputs';
-
 interface TitleIndexFieldProps {
     name: string;
     onInputChange: (evt: any) => void;
@@ -435,7 +394,6 @@ export class AdvancedSettings extends React.PureComponent<AdvancedSettingsProps,
 
         return {
             titleColumn: model.titleColumn,
-            discussionSetting: model.discussionSetting,
             fileAttachmentIndex: model.fileAttachmentIndex,
 
             // entire list
@@ -503,7 +461,6 @@ export class AdvancedSettings extends React.PureComponent<AdvancedSettingsProps,
     render(): ReactNode {
         const {
             modalOpen,
-            discussionSetting,
             fileAttachmentIndex,
             entireListIndex,
             entireListTitleTemplate,
@@ -568,15 +525,6 @@ export class AdvancedSettings extends React.PureComponent<AdvancedSettingsProps,
                             />
                         </SettingsContainer>
 
-                        {isObjectLevelDiscussionsEnabled() && (
-                            <SettingsContainer title="Discussion Threads" tipBody={DISCUSSION_LINKS_TIP}>
-                                <DiscussionInputs
-                                    onRadioChange={this.onRadioChange}
-                                    discussionSetting={discussionSetting}
-                                />
-                            </SettingsContainer>
-                        )}
-
                         <SettingsContainer title="Search Indexing Options" tipBody={SEARCH_INDEXING_TIP}>
                             <SearchIndexing
                                 onRadioChange={this.onRadioChange}
diff --git a/packages/components/src/internal/components/domainproperties/list/models.test.ts b/packages/components/src/internal/components/domainproperties/list/models.test.ts
index b17a617ade..7b62d1ad43 100644
--- a/packages/components/src/internal/components/domainproperties/list/models.test.ts
+++ b/packages/components/src/internal/components/domainproperties/list/models.test.ts
@@ -77,7 +77,6 @@ describe('ListModel', () => {
         expect(options).not.toHaveProperty('domain');
         expect(options).toHaveProperty('name');
         expect(options).toHaveProperty('description');
-        expect(options).toHaveProperty('discussionSetting');
 
         const PKFieldName = existingModel
             .getIn(['domain', 'fields'])
diff --git a/packages/components/src/internal/components/domainproperties/list/models.ts b/packages/components/src/internal/components/domainproperties/list/models.ts
index 4921f82138..b910c40c93 100644
--- a/packages/components/src/internal/components/domainproperties/list/models.ts
+++ b/packages/components/src/internal/components/domainproperties/list/models.ts
@@ -36,7 +36,6 @@ export interface EntireListSettings {
 }
 
 export interface AdvancedSettingsForm extends EachItemSettings, EntireListSettings {
-    discussionSetting: number;
     eachItemIndex: boolean;
     entireListIndex: boolean;
     fileAttachmentIndex: boolean;
@@ -60,7 +59,6 @@ export class ListModel extends Record({
     titleColumn: undefined,
     domainId: undefined,
     keyType: undefined,
-    discussionSetting: undefined,
     allowDelete: undefined,
     allowUpload: undefined,
     allowExport: undefined,
@@ -75,7 +73,6 @@ export class ListModel extends Record({
     eachItemBodyTemplate: undefined,
     fileAttachmentIndex: undefined,
     listId: undefined,
-    discussionSettingEnum: undefined,
     containerPath: undefined,
     category: undefined,
 }) {
@@ -89,7 +86,6 @@ export class ListModel extends Record({
     declare titleColumn: string;
     declare domainId: number;
     declare keyType: string;
-    declare discussionSetting: number;
     declare allowDelete: true;
     declare allowUpload: true;
     declare allowExport: true;
@@ -104,7 +100,6 @@ export class ListModel extends Record({
     declare eachItemBodyTemplate: string;
     declare fileAttachmentIndex: false;
     declare listId: number;
-    declare discussionSettingEnum: string;
     declare containerPath: string;
     declare category: string;
 
diff --git a/packages/components/src/test/data/constants.ts b/packages/components/src/test/data/constants.ts
index 11722fa6b6..7f69b8a1bf 100644
--- a/packages/components/src/test/data/constants.ts
+++ b/packages/components/src/test/data/constants.ts
@@ -89,7 +89,6 @@ export const DEFAULT_LIST_SETTINGS = {
     allowDelete: true,
     allowUpload: true,
     allowExport: true,
-    discussionSetting: 0,
     entireListTitleTemplate: '',
     entireListIndexSetting: 0,
     entireListBodySetting: 0,
diff --git a/packages/components/src/test/data/list-getDomainDetails-withAutoIntPK.json b/packages/components/src/test/data/list-getDomainDetails-withAutoIntPK.json
index 37f7a8dc83..5835ba3a86 100644
--- a/packages/components/src/test/data/list-getDomainDetails-withAutoIntPK.json
+++ b/packages/components/src/test/data/list-getDomainDetails-withAutoIntPK.json
@@ -126,7 +126,6 @@
     "allowDelete" : true,
     "allowUpload" : true,
     "allowExport" : true,
-    "discussionSetting" : 0,
     "entireListTitleTemplate" : null,
     "entireListIndexSetting" : 0,
     "entireListBodySetting" : 0,
diff --git a/packages/components/src/test/data/list-getDomainDetails.json b/packages/components/src/test/data/list-getDomainDetails.json
index c4b9b71c57..a8b3c710dd 100644
--- a/packages/components/src/test/data/list-getDomainDetails.json
+++ b/packages/components/src/test/data/list-getDomainDetails.json
@@ -687,7 +687,6 @@
     "listId" : 277,
     "domainId" : 2280,
     "keyType" : "Integer",
-    "discussionSetting" : 1,
     "allowDelete" : true,
     "allowUpload" : true,
     "allowExport" : true,
@@ -703,7 +702,6 @@
     "eachItemBodySetting" : 0,
     "eachItemBodyTemplate" : null,
     "fileAttachmentIndex" : false,
-    "discussionSettingEnum" : "OnePerItem",
     "entireListIndexSettingEnum" : "MetaData",
     "entireListTitleSettingEnum" : "Standard",
     "entireListBodySettingEnum" : "AllFields",