diff --git a/packages/xod-client/src/core/styles/components/PanelToolbar.scss b/packages/xod-client/src/core/styles/components/PanelToolbar.scss
deleted file mode 100644
index c54955f6..00000000
--- a/packages/xod-client/src/core/styles/components/PanelToolbar.scss
+++ /dev/null
@@ -1,52 +0,0 @@
-.PanelToolbar {
-  display: block;
-  height: 24px;
-  overflow: hidden;
-  box-sizing: border-box;
-  background-color: $chrome-title-bg;
-
-  button {
-    display: inline-block;
-    box-sizing: border-box;
-    width: 24px;
-    height: 24px;
-    padding: 0;
-
-    text-align: center;
-    vertical-align: middle;
-    line-height: 1;
-
-    background: none;
-    border: none;
-    outline: none;
-
-    cursor: pointer;
-
-    color: $sidebar-color-text;
-
-    &:hover, &:focus {
-      color: $sidebar-color-text-hover;
-    }
-
-    &.addlib{
-      @extend .icon-addlib;
-    }
-    &.newpatch{
-      @extend .icon-newpatch;
-    }
-    &.contextmenu {
-      @extend .icon-contextmenu;
-    }
-  }
-
-  &-title {
-    font-size: $font-size-m;
-    color: $light-grey-bright;
-    float: left;
-    line-height: 18px;
-    padding: 3px;
-  }
-  &-buttons {
-    float: right;
-  }
-}
diff --git a/packages/xod-client/src/core/styles/components/SidebarPanel.scss b/packages/xod-client/src/core/styles/components/SidebarPanel.scss
index f4127c42..675677d6 100644
--- a/packages/xod-client/src/core/styles/components/SidebarPanel.scss
+++ b/packages/xod-client/src/core/styles/components/SidebarPanel.scss
@@ -50,6 +50,9 @@
       &.newpatch{
         @extend .icon-newpatch;
       }
+      &.filter {
+        @extend .icon-filter;
+      }
       &.contextmenu {
         @extend .icon-contextmenu;
         opacity: 0.7;
diff --git a/packages/xod-client/src/core/styles/main.scss b/packages/xod-client/src/core/styles/main.scss
index cf5b3d67..1ef77676 100644
--- a/packages/xod-client/src/core/styles/main.scss
+++ b/packages/xod-client/src/core/styles/main.scss
@@ -36,7 +36,6 @@
   'components/Modals',
   'components/Node',
   'components/NoPatch',
-  'components/PanelToolbar',
   'components/PatchDocs',
   'components/PatchGroup',
   'components/PatchGroupItem',
diff --git a/packages/xod-client/src/projectBrowser/actionTypes.js b/packages/xod-client/src/projectBrowser/actionTypes.js
index b16c4392..99fafd0d 100644
--- a/packages/xod-client/src/projectBrowser/actionTypes.js
+++ b/packages/xod-client/src/projectBrowser/actionTypes.js
@@ -4,3 +4,5 @@ export const PATCH_DELETE_REQUESTED = 'PATCH_DELETE_REQUESTED';
 
 export const SET_SELECTION = 'SET_SELECTION';
 export const REMOVE_SELECTION = 'REMOVE_SELECTION';
+
+export const TOGGLE_DEPRECATED_FILTER = 'TOGGLE_DEPRECATED_FILTER';
diff --git a/packages/xod-client/src/projectBrowser/actions.js b/packages/xod-client/src/projectBrowser/actions.js
index a141daa9..c483cf4f 100644
--- a/packages/xod-client/src/projectBrowser/actions.js
+++ b/packages/xod-client/src/projectBrowser/actions.js
@@ -6,6 +6,7 @@ import {
   PATCH_DELETE_REQUESTED,
   SET_SELECTION,
   REMOVE_SELECTION,
+  TOGGLE_DEPRECATED_FILTER,
 } from './actionTypes';
 
 import { getSelectedPatchPath } from './selectors';
@@ -49,3 +50,7 @@ export const setSelection = selectedPatchPath => ({
 export const removeSelection = () => ({
   type: REMOVE_SELECTION,
 });
+
+export const toggleDeprecatedFilter = () => ({
+  type: TOGGLE_DEPRECATED_FILTER,
+});
diff --git a/packages/xod-client/src/projectBrowser/constants.js b/packages/xod-client/src/projectBrowser/constants.js
index 59738dd0..0ab67314 100644
--- a/packages/xod-client/src/projectBrowser/constants.js
+++ b/packages/xod-client/src/projectBrowser/constants.js
@@ -1,3 +1,4 @@
 // Id of context menu to show it
 // eslint-disable-next-line import/prefer-default-export
 export const PATCH_GROUP_CONTEXT_MENU_ID = 'PATCH_GROUP_CONTEXT_MENU_ID';
+export const FILTER_CONTEXT_MENU_ID = 'FILTER_CONTEXT_MENU_ID';
diff --git a/packages/xod-client/src/projectBrowser/containers/ProjectBrowser.jsx b/packages/xod-client/src/projectBrowser/containers/ProjectBrowser.jsx
index e2325670..609d336f 100644
--- a/packages/xod-client/src/projectBrowser/containers/ProjectBrowser.jsx
+++ b/packages/xod-client/src/projectBrowser/containers/ProjectBrowser.jsx
@@ -5,7 +5,7 @@ import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
 import { Icon } from 'react-fa';
 import { HotKeys } from 'react-hotkeys';
-import { ContextMenuTrigger } from 'react-contextmenu';
+import { ContextMenuTrigger, ContextMenu, MenuItem } from 'react-contextmenu';
 
 import $ from 'sanctuary-def';
 import {
@@ -14,6 +14,7 @@ import {
   isPathLocal,
   getBaseName,
   PatchPath,
+  isDeprecatedPatch,
 } from 'xod-project';
 import { isAmong, notEquals, $Maybe, foldMaybe } from 'xod-func-tools';
 
@@ -36,16 +37,23 @@ import PatchGroupItem from '../components/PatchGroupItem';
 import ProjectBrowserPopups from '../components/ProjectBrowserPopups';
 import PatchGroupItemContextMenu from '../components/PatchGroupItemContextMenu';
 
-import { PATCH_GROUP_CONTEXT_MENU_ID } from '../constants';
+import {
+  PATCH_GROUP_CONTEXT_MENU_ID,
+  FILTER_CONTEXT_MENU_ID,
+} from '../constants';
 import { PANEL_IDS, SIDEBAR_IDS } from '../../editor/constants';
 import { triggerUpdateHelpboxPositionViaProjectBrowser } from '../../editor/utils';
 
-const pickPatchPartsForComparsion = R.map(R.pick(['dead', 'path']));
+const pickPatchPartsForComparsion = R.map(
+  R.pick(['deprecated', 'dead', 'path'])
+);
+
+const checkmark = active => (active ? <span className="state">✔</span> : null);
 
 const pickPropsForComparsion = R.compose(
   R.evolve({
     localPatches: pickPatchPartsForComparsion,
-    libs: pickPatchPartsForComparsion,
+    libs: R.map(pickPatchPartsForComparsion),
   }),
   R.omit(['actions'])
 );
@@ -178,9 +186,11 @@ class ProjectBrowser extends React.Component {
 
     const collectPropsFn = this.getCollectPropsFn(path);
 
+    const key = `${path}${deprecated ? '_deprecated' : ''}`;
+
     return (
       <PatchGroupItem
-        key={path}
+        key={key}
         patchPath={path}
         dead={dead}
         label={getBaseName(path)}
@@ -235,6 +245,14 @@ class ProjectBrowser extends React.Component {
     );
     const installingLibNames = R.pluck('name', installingLibsComponents);
 
+    // Rejecting of deprecated patches is implemented in the
+    // component for better performance.
+    // :: { LibName: [Patch] } -> { LibName: [Patch] }
+    const rejectDeprecatedPatches = R.unless(
+      () => this.props.showDeprecated,
+      R.map(R.reject(isDeprecatedPatch))
+    );
+
     const libComponents = R.compose(
       R.reject(R.compose(isAmong(installingLibNames), R.prop('name'))),
       R.map(([libName, libPatches]) => ({
@@ -250,7 +268,8 @@ class ProjectBrowser extends React.Component {
           </PatchGroup>
         ),
       })),
-      R.toPairs
+      R.toPairs,
+      rejectDeprecatedPatches
     )(libs);
 
     return R.compose(
@@ -283,6 +302,17 @@ class ProjectBrowser extends React.Component {
         title="Add library"
         onClick={this.onClickAddLibrary}
       />,
+      <ContextMenuTrigger
+        id={FILTER_CONTEXT_MENU_ID}
+        key="contextMenuTrigger"
+        renderTag="button"
+        attributes={{
+          className: 'filter',
+        }}
+        holdToDisplay={0}
+      >
+        <span />
+      </ContextMenuTrigger>,
     ];
   }
 
@@ -323,6 +353,12 @@ class ProjectBrowser extends React.Component {
           onPatchRename={this.props.actions.requestRename}
           onPatchHelp={this.onPatchHelpClicked}
         />
+        <ContextMenu id={FILTER_CONTEXT_MENU_ID}>
+          <MenuItem onClick={this.props.actions.toggleDeprecatedFilter}>
+            {checkmark(this.props.showDeprecated)}
+            Deprecated nodes
+          </MenuItem>
+        </ContextMenu>
       </HotKeys>
     );
   }
@@ -342,6 +378,7 @@ ProjectBrowser.propTypes = {
   defaultNodePosition: PropTypes.object.isRequired,
   sidebarId: PropTypes.oneOf(R.values(SIDEBAR_IDS)).isRequired,
   autohide: PropTypes.bool.isRequired,
+  showDeprecated: PropTypes.bool.isRequired,
   actions: PropTypes.shape({
     addNode: PropTypes.func.isRequired,
     switchPatch: PropTypes.func.isRequired,
@@ -357,6 +394,7 @@ ProjectBrowser.propTypes = {
     closeAllPopups: PropTypes.func.isRequired,
     showLibSuggester: PropTypes.func.isRequired,
     showHelpbox: PropTypes.func.isRequired,
+    toggleDeprecatedFilter: PropTypes.func.isRequired,
   }),
 };
 
@@ -370,6 +408,7 @@ const mapStateToProps = R.applySpec({
   libs: ProjectBrowserSelectors.getLibs,
   installingLibs: ProjectBrowserSelectors.getInstallingLibraries,
   defaultNodePosition: EditorSelectors.getDefaultNodePlacePosition,
+  showDeprecated: ProjectBrowserSelectors.shouldShowDeprecatedPatches,
 });
 
 const mapDispatchToProps = dispatch => ({
@@ -395,6 +434,8 @@ const mapDispatchToProps = dispatch => ({
       addNotification: MessagesActions.addNotification,
       showLibSuggester: EditorActions.showLibSuggester,
       showHelpbox: EditorActions.showHelpbox,
+
+      toggleDeprecatedFilter: ProjectBrowserActions.toggleDeprecatedFilter,
     },
     dispatch
   ),
diff --git a/packages/xod-client/src/projectBrowser/reducer.js b/packages/xod-client/src/projectBrowser/reducer.js
index 5fb1e803..cb9207c3 100644
--- a/packages/xod-client/src/projectBrowser/reducer.js
+++ b/packages/xod-client/src/projectBrowser/reducer.js
@@ -7,6 +7,7 @@ import {
   PATCH_DELETE_REQUESTED,
   SET_SELECTION,
   REMOVE_SELECTION,
+  TOGGLE_DEPRECATED_FILTER,
 } from './actionTypes';
 
 import { PATCH_DELETE, PATCH_RENAME } from '../project/actionTypes';
@@ -17,6 +18,7 @@ import {
   INSTALL_LIBRARIES_FAILED,
 } from '../editor/actionTypes';
 
+// Reducers
 const selectionReducer = (state, action) => {
   switch (action.type) {
     case SET_SELECTION:
@@ -52,9 +54,19 @@ const installingLibrariesReducer = (state, action) => {
   }
 };
 
+const filtersReducer = (state, action) => {
+  switch (action.type) {
+    case TOGGLE_DEPRECATED_FILTER:
+      return R.over(R.lensProp('deprecated'), R.not, state);
+    default:
+      return state;
+  }
+};
+
 export default (state = initialState, action) =>
   R.merge(state, {
     selectedPatchPath: selectionReducer(state.selectedPatchPath, action),
+    filters: filtersReducer(state.filters, action),
     installingLibraries: installingLibrariesReducer(
       state.installingLibraries,
       action
diff --git a/packages/xod-client/src/projectBrowser/selectors.js b/packages/xod-client/src/projectBrowser/selectors.js
index 8a885c8d..3472195b 100644
--- a/packages/xod-client/src/projectBrowser/selectors.js
+++ b/packages/xod-client/src/projectBrowser/selectors.js
@@ -10,6 +10,11 @@ import { isPatchDeadTerminal } from '../project/utils';
 
 export const getProjectBrowser = R.prop('projectBrowser');
 
+export const shouldShowDeprecatedPatches = createSelector(
+  getProjectBrowser,
+  R.path(['filters', 'deprecated'])
+);
+
 export const getSelectedPatchPath = createSelector(
   getProjectBrowser,
   R.prop('selectedPatchPath')
@@ -29,14 +34,23 @@ const markDeadPatches = R.curry((project, patch) =>
   )(patch, project)
 );
 
-export const getLocalPatches = createSelector(
+// :: Patch -> Patch
+const markDeprecatedPatches = patch =>
+  R.assoc('deprecated', XP.isDeprecatedPatch(patch), patch);
+
+const getLocalPatchesList = createSelector(
   ProjectSelectors.getProject,
-  project =>
+  XP.listLocalPatches
+);
+
+export const getLocalPatches = createMemoizedSelector(
+  [getLocalPatchesList, ProjectSelectors.getProject],
+  [R.equals],
+  (patches, project) =>
     R.compose(
       R.sortBy(XP.getPatchPath),
-      R.map(markDeadPatches(project)),
-      XP.listLocalPatches
-    )(project)
+      R.map(R.compose(markDeprecatedPatches, markDeadPatches(project)))
+    )(patches)
 );
 
 // TODO: this is not actually label anymore
@@ -63,7 +77,7 @@ export const getLibs = createMemoizedSelector(
       R.map(R.sort(R.ascend(XP.getPatchPath))),
       R.groupBy(R.pipe(XP.getPatchPath, XP.getLibraryName)),
       R.reject(isPatchDeadTerminal),
-      R.map(markDeadPatches(project))
+      R.map(R.compose(markDeprecatedPatches, markDeadPatches(project)))
     )(patches)
 );
 
diff --git a/packages/xod-client/src/projectBrowser/state.js b/packages/xod-client/src/projectBrowser/state.js
index a164d303..cfa86d85 100644
--- a/packages/xod-client/src/projectBrowser/state.js
+++ b/packages/xod-client/src/projectBrowser/state.js
@@ -1,4 +1,7 @@
 export default {
   selectedPatchPath: null,
+  filters: {
+    deprecated: false,
+  },
   installingLibraries: [],
 };