diff --git a/CHANGELOG.md b/CHANGELOG.md
index a8bfe213..bb1c8b81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,8 @@ All notable changes to this project will be documented in this file.  See
 [standard-version](https://github.com/conventional-changelog/standard-version)
 for commit guidelines.
 
-## Not yet released
+<a name="0.21.0"></a>
+## 0.21.0 (2018-06-09)
 
 ### Features and enhancements
 
diff --git a/lerna.json b/lerna.json
index ab3e3159..aba907df 100644
--- a/lerna.json
+++ b/lerna.json
@@ -6,5 +6,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.20.3"
+  "version": "0.21.0"
 }
diff --git a/packages/xod-arduino-deploy/package.json b/packages/xod-arduino-deploy/package.json
index 2f01f163..9506af5e 100644
--- a/packages/xod-arduino-deploy/package.json
+++ b/packages/xod-arduino-deploy/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-arduino-deploy",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "Utility to build and upload binaries on Arduino microcontrollers.",
   "main": "dist/index.js",
   "scripts": {
@@ -28,8 +28,8 @@
     "serialport": "^4.0.7",
     "tar": "^3.1.8",
     "unbzip2-stream": "^1.2.5",
-    "xod-fs": "^0.20.3",
-    "xod-func-tools": "^0.20.3"
+    "xod-fs": "^0.21.0",
+    "xod-func-tools": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",
diff --git a/packages/xod-arduino/package.json b/packages/xod-arduino/package.json
index feb6626e..7628e1d5 100644
--- a/packages/xod-arduino/package.json
+++ b/packages/xod-arduino/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-arduino",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "XOD project: Arduino transpiler",
   "scripts": {
     "build": "babel src/ -d dist/ --source-maps",
@@ -20,13 +20,13 @@
     "ramda": "^0.24.1",
     "ramda-fantasy": "^0.8.0",
     "sanctuary-def": "^0.14.0",
-    "xod-func-tools": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-func-tools": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "babel-plugin-inline-import": "^2.0.4",
     "chai": "^4.1.2",
     "dirty-chai": "^1.2.2",
-    "xod-fs": "^0.20.3"
+    "xod-fs": "^0.21.0"
   }
 }
diff --git a/packages/xod-cli/package.json b/packages/xod-cli/package.json
index 1569937b..4453ca2f 100644
--- a/packages/xod-cli/package.json
+++ b/packages/xod-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-cli",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "XOD project: Command Line Interface",
   "scripts": {
     "build:workspace": "cpx \"../../workspace/__lib__/**\" \"./__lib__\"",
@@ -28,12 +28,12 @@
     "sanctuary-def": "^0.14.0",
     "source-map-support": "^0.4.15",
     "swagger-client": "^3.4.3",
-    "xod-arduino": "^0.20.3",
-    "xod-fs": "^0.20.3",
-    "xod-func-tools": "^0.20.3",
-    "xod-pm": "^0.20.3",
-    "xod-project": "^0.20.3",
-    "xod-tabtest": "^0.20.0"
+    "xod-arduino": "^0.21.0",
+    "xod-fs": "^0.21.0",
+    "xod-func-tools": "^0.21.0",
+    "xod-pm": "^0.21.0",
+    "xod-project": "^0.21.0",
+    "xod-tabtest": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",
diff --git a/packages/xod-client-browser/package.json b/packages/xod-client-browser/package.json
index 35dfb675..ac8b5735 100644
--- a/packages/xod-client-browser/package.json
+++ b/packages/xod-client-browser/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-client-browser",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "XOD project: Client browser application",
   "scripts": {
     "build:tutorial-project": "node ./tools/loadTutorialProject.js",
@@ -23,16 +23,16 @@
     "redux": "^3.0.5",
     "redux-thunk": "^2.1.0",
     "url-parse": "^1.2.0",
-    "xod-arduino": "^0.20.3",
-    "xod-client": "^0.20.3",
-    "xod-func-tools": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-arduino": "^0.21.0",
+    "xod-client": "^0.21.0",
+    "xod-func-tools": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",
     "node-static": "^0.7.10",
     "why-did-you-update": "^0.1.0",
-    "xod-fs": "^0.20.3"
+    "xod-fs": "^0.21.0"
   },
   "author": "XOD Team <dev@xod.io>",
   "license": "AGPL-3.0"
diff --git a/packages/xod-client-electron/package.json b/packages/xod-client-electron/package.json
index 767c5246..4f02870a 100644
--- a/packages/xod-client-electron/package.json
+++ b/packages/xod-client-electron/package.json
@@ -5,7 +5,7 @@
   "license": "AGPL-3.0",
   "main": "src-babel/app/main.js",
   "name": "xod-client-electron",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "scripts": {
     "build:workspace": "cpx \"../../workspace/**/*\" \"src-babel/workspace\"",
     "build:gui": "webpack --colors",
@@ -41,13 +41,13 @@
     "redux": "^3.0.5",
     "redux-thunk": "^2.1.0",
     "serialport": "^4.0.7",
-    "xod-arduino": "^0.20.3",
-    "xod-arduino-deploy": "^0.20.3",
-    "xod-client": "^0.20.3",
-    "xod-deploy": "^0.20.3",
-    "xod-fs": "^0.20.3",
-    "xod-func-tools": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-arduino": "^0.21.0",
+    "xod-arduino-deploy": "^0.21.0",
+    "xod-client": "^0.21.0",
+    "xod-deploy": "^0.21.0",
+    "xod-fs": "^0.21.0",
+    "xod-func-tools": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "babel-cli": "^6.16.0",
diff --git a/packages/xod-client/package.json b/packages/xod-client/package.json
index b817bc94..d7b01fb9 100644
--- a/packages/xod-client/package.json
+++ b/packages/xod-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-client",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "XOD project: Client application",
   "scripts": {
     "build": "babel src/ -d dist/ --source-maps",
@@ -58,11 +58,11 @@
     "url-parse": "^1.1.9",
     "url-search-params-polyfill": "^2.0.1",
     "vec-la-fp": "^1.5.2",
-    "xod-arduino": "^0.20.3",
-    "xod-func-tools": "^0.20.3",
-    "xod-patch-search": "^0.20.3",
-    "xod-pm": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-arduino": "^0.21.0",
+    "xod-func-tools": "^0.21.0",
+    "xod-patch-search": "^0.21.0",
+    "xod-pm": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "@storybook/addon-actions": "^3.2.17",
diff --git a/packages/xod-deploy/package.json b/packages/xod-deploy/package.json
index b113973f..dbaf618f 100644
--- a/packages/xod-deploy/package.json
+++ b/packages/xod-deploy/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-deploy",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "",
   "main": "dist/index.js",
   "scripts": {
@@ -29,8 +29,8 @@
     "tar": "^4.0.1",
     "unbzip2-stream": "^1.2.5",
     "ws": "^3.1.0",
-    "xod-fs": "^0.20.3",
-    "xod-func-tools": "^0.20.3"
+    "xod-fs": "^0.21.0",
+    "xod-func-tools": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2"
diff --git a/packages/xod-fs/package.json b/packages/xod-fs/package.json
index a408ef35..499541ac 100644
--- a/packages/xod-fs/package.json
+++ b/packages/xod-fs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-fs",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "",
   "main": "dist/index.js",
   "scripts": {
@@ -18,8 +18,8 @@
     "recursive-copy": "^2.0.6",
     "recursive-readdir": "^2.1.0",
     "sanctuary-def": "^0.14.0",
-    "xod-func-tools": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-func-tools": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",
diff --git a/packages/xod-func-tools/package.json b/packages/xod-func-tools/package.json
index 3ab21252..d960f6fc 100644
--- a/packages/xod-func-tools/package.json
+++ b/packages/xod-func-tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-func-tools",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "",
   "keywords": [],
   "author": "XOD Team <dev@xod.io>",
diff --git a/packages/xod-patch-search/package.json b/packages/xod-patch-search/package.json
index f48956dd..85b4302f 100644
--- a/packages/xod-patch-search/package.json
+++ b/packages/xod-patch-search/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-patch-search",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "",
   "main": "dist/index.js",
   "scripts": {
@@ -22,11 +22,11 @@
     "fuse.js": "^3.0.5",
     "ramda": "^0.24.1",
     "ramda-fantasy": "^0.8.0",
-    "xod-func-tools": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-func-tools": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",
-    "xod-fs": "^0.20.3"
+    "xod-fs": "^0.21.0"
   }
 }
diff --git a/packages/xod-pm/package.json b/packages/xod-pm/package.json
index fa4cb2cf..c6954db3 100644
--- a/packages/xod-pm/package.json
+++ b/packages/xod-pm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-pm",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "",
   "main": "dist/index.js",
   "scripts": {
@@ -23,8 +23,8 @@
     "ramda": "^0.24.1",
     "ramda-fantasy": "^0.8.0",
     "swagger-client": "^3.4.3",
-    "xod-func-tools": "^0.20.3",
-    "xod-project": "^0.20.3"
+    "xod-func-tools": "^0.21.0",
+    "xod-project": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2"
diff --git a/packages/xod-project/package.json b/packages/xod-project/package.json
index 5460fa4b..c12f8aac 100644
--- a/packages/xod-project/package.json
+++ b/packages/xod-project/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-project",
-  "version": "0.20.3",
+  "version": "0.21.0",
   "description": "API functions to work on XOD project state",
   "keywords": [],
   "license": "AGPL-3.0",
@@ -20,7 +20,7 @@
     "ramda-fantasy": "^0.8.0",
     "sanctuary-def": "^0.14.0",
     "shortid": "^2.2.6",
-    "xod-func-tools": "^0.20.3"
+    "xod-func-tools": "^0.21.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",
diff --git a/packages/xod-tabtest/package.json b/packages/xod-tabtest/package.json
index ea9fd4f1..9f7a067d 100644
--- a/packages/xod-tabtest/package.json
+++ b/packages/xod-tabtest/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xod-tabtest",
-  "version": "0.20.0",
+  "version": "0.21.0",
   "scripts": {
     "refmt": "find src/ test/ -name '*.re*' -exec refmt --in-place {} +",
     "build": "bsb -make-world",
diff --git a/workspace/__lib__/xod/bits/project.xod b/workspace/__lib__/xod/bits/project.xod
index f3b68968..f1db52a0 100644
--- a/workspace/__lib__/xod/bits/project.xod
+++ b/workspace/__lib__/xod/bits/project.xod
@@ -5,5 +5,5 @@
   "description": "Low-level bits and bytes operations",
   "license": "AGPL-3.0",
   "name": "bits",
-  "version": "0.20.3"
+  "version": "0.21.0"
 }
diff --git a/workspace/__lib__/xod/common-hardware/project.xod b/workspace/__lib__/xod/common-hardware/project.xod
index 9d84105f..2110651e 100644
--- a/workspace/__lib__/xod/common-hardware/project.xod
+++ b/workspace/__lib__/xod/common-hardware/project.xod
@@ -5,5 +5,5 @@
   "description": "Hardware drivers for popular and simple peripherals",
   "license": "AGPL-3.0",
   "name": "common-hardware",
-  "version": "0.20.3"
+  "version": "0.21.0"
 }
diff --git a/workspace/__lib__/xod/core/project.xod b/workspace/__lib__/xod/core/project.xod
index fad190f2..8c750c5f 100644
--- a/workspace/__lib__/xod/core/project.xod
+++ b/workspace/__lib__/xod/core/project.xod
@@ -5,5 +5,5 @@
   "description": "The very basic nodes of XOD",
   "license": "AGPL-3.0",
   "name": "core",
-  "version": "0.20.3"
+  "version": "0.21.0"
 }
diff --git a/workspace/__lib__/xod/units/project.xod b/workspace/__lib__/xod/units/project.xod
index bfffb059..dcc4bebd 100644
--- a/workspace/__lib__/xod/units/project.xod
+++ b/workspace/__lib__/xod/units/project.xod
@@ -5,5 +5,5 @@
   "description": "Units of measurement conversions",
   "license": "AGPL-3.0",
   "name": "units",
-  "version": "0.20.3"
+  "version": "0.21.0"
 }