diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0faaa0cf..20d505f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,21 @@ Released YYYY-MM-DD.
 
 --------------------------------------------------------------------------------
 
+## 0.2.21
+
+Released 2018-09-07
+
+### Added
+
+* Added many more bindings for `WebAssembly` in the `js-sys` crate.
+
+### Fixed
+
+* The "names" section of the wasm binary is now correctly preserved by
+  wasm-bindgen.
+
+--------------------------------------------------------------------------------
+
 ## 0.2.20
 
 Released 2018-09-06
diff --git a/Cargo.toml b/Cargo.toml
index 35840d71..059f471e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 # Because only a single `wasm_bindgen` version can be used in a dependency
@@ -35,13 +35,13 @@ nightly = []
 xxx_debug_only_print_generated_code = ["wasm-bindgen-macro/xxx_debug_only_print_generated_code"]
 
 [dependencies]
-wasm-bindgen-macro = { path = "crates/macro", version = "=0.2.20" }
+wasm-bindgen-macro = { path = "crates/macro", version = "=0.2.21" }
 serde = { version = "1.0", optional = true }
 serde_json = { version = "1.0", optional = true }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-js-sys = { path = 'crates/js-sys', version = '0.2.5' }
-wasm-bindgen-test = { path = 'crates/test', version = '=0.2.20' }
+js-sys = { path = 'crates/js-sys', version = '0.2.6' }
+wasm-bindgen-test = { path = 'crates/test', version = '=0.2.21' }
 serde_derive = "1.0"
 wasm-bindgen-test-crate-a = { path = 'tests/crates/a', version = '0.1' }
 wasm-bindgen-test-crate-b = { path = 'tests/crates/b', version = '0.1' }
diff --git a/crates/backend/Cargo.toml b/crates/backend/Cargo.toml
index 72361b5f..d286e3d0 100644
--- a/crates/backend/Cargo.toml
+++ b/crates/backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-backend"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/backend"
@@ -21,4 +21,4 @@ proc-macro2 = "0.4.8"
 quote = '0.6'
 serde_json = "1.0"
 syn = { version = '0.15', features = ['full', 'visit'] }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.20" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.21" }
diff --git a/crates/cli-support/Cargo.toml b/crates/cli-support/Cargo.toml
index 9240bec1..515f478f 100644
--- a/crates/cli-support/Cargo.toml
+++ b/crates/cli-support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-cli-support"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli-support"
@@ -17,6 +17,6 @@ parity-wasm = "0.32"
 serde = "1.0"
 serde_json = "1.0"
 tempfile = "3.0"
-wasm-bindgen-shared = { path = "../shared", version = '=0.2.20' }
-wasm-bindgen-wasm-interpreter = { path = "../wasm-interpreter", version = '=0.2.20' }
+wasm-bindgen-shared = { path = "../shared", version = '=0.2.21' }
+wasm-bindgen-wasm-interpreter = { path = "../wasm-interpreter", version = '=0.2.21' }
 wasm-gc-api = "0.1.9"
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index 445e27c9..eafe72a9 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-cli"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli"
@@ -23,8 +23,8 @@ rouille = { version = "2.1.0", default-features = false }
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
-wasm-bindgen-cli-support = { path = "../cli-support", version = "=0.2.20" }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.20" }
+wasm-bindgen-cli-support = { path = "../cli-support", version = "=0.2.21" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.21" }
 openssl = { version = '0.10.11', optional = true }
 
 [features]
diff --git a/crates/futures/Cargo.toml b/crates/futures/Cargo.toml
index eee21c54..b31cdad2 100644
--- a/crates/futures/Cargo.toml
+++ b/crates/futures/Cargo.toml
@@ -7,12 +7,12 @@ license = "MIT/Apache-2.0"
 name = "wasm-bindgen-futures"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/futures"
 readme = "./README.md"
-version = "0.2.20"
+version = "0.2.21"
 
 [dependencies]
 futures = "0.1.20"
-js-sys = { path = "../js-sys", version = '0.2.5' }
-wasm-bindgen = { path = "../..", version = '0.2.20' }
+js-sys = { path = "../js-sys", version = '0.2.6' }
+wasm-bindgen = { path = "../..", version = '0.2.21' }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = { path = '../test', version = '0.2.20' }
+wasm-bindgen-test = { path = '../test', version = '0.2.21' }
diff --git a/crates/js-sys/Cargo.toml b/crates/js-sys/Cargo.toml
index 3092f092..7c807edc 100644
--- a/crates/js-sys/Cargo.toml
+++ b/crates/js-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "js-sys"
-version = "0.2.5"
+version = "0.2.6"
 authors = ["The wasm-bindgen Developers"]
 readme = "./README.md"
 categories = ["wasm"]
@@ -18,9 +18,9 @@ test = false
 doctest = false
 
 [dependencies]
-wasm-bindgen = { path = "../..", version = "0.2.20" }
+wasm-bindgen = { path = "../..", version = "0.2.21" }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 futures = "0.1.20"
-wasm-bindgen-test = { path = '../test', version = '=0.2.20' }
-wasm-bindgen-futures = { path = '../futures', version = '=0.2.20' }
+wasm-bindgen-test = { path = '../test', version = '=0.2.21' }
+wasm-bindgen-futures = { path = '../futures', version = '=0.2.21' }
diff --git a/crates/macro-support/Cargo.toml b/crates/macro-support/Cargo.toml
index 0073487d..d5c03b26 100644
--- a/crates/macro-support/Cargo.toml
+++ b/crates/macro-support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-macro-support"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/macro-support"
@@ -18,5 +18,5 @@ extra-traits = ["syn/extra-traits"]
 syn = { version = '0.15.0', features = ['full'] }
 quote = '0.6'
 proc-macro2 = "0.4.9"
-wasm-bindgen-backend = { path = "../backend", version = "=0.2.20" }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.20" }
+wasm-bindgen-backend = { path = "../backend", version = "=0.2.21" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.21" }
diff --git a/crates/macro/Cargo.toml b/crates/macro/Cargo.toml
index 3f48d0c1..d1946d0b 100644
--- a/crates/macro/Cargo.toml
+++ b/crates/macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-macro"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/macro"
@@ -18,5 +18,5 @@ spans = ["wasm-bindgen-macro-support/spans"]
 xxx_debug_only_print_generated_code = []
 
 [dependencies]
-wasm-bindgen-macro-support = { path = "../macro-support", version = "=0.2.20" }
+wasm-bindgen-macro-support = { path = "../macro-support", version = "=0.2.21" }
 quote = "0.6"
diff --git a/crates/shared/Cargo.toml b/crates/shared/Cargo.toml
index dc4bd328..d038ad0f 100644
--- a/crates/shared/Cargo.toml
+++ b/crates/shared/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-shared"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/shared"
diff --git a/crates/test-macro/Cargo.toml b/crates/test-macro/Cargo.toml
index 913d2989..2f5a1f5b 100644
--- a/crates/test-macro/Cargo.toml
+++ b/crates/test-macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-test-macro"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 description = "Internal testing macro for wasm-bindgen"
 license = "MIT/Apache-2.0"
diff --git a/crates/test/Cargo.toml b/crates/test/Cargo.toml
index 8f960bc0..6d5f9f82 100644
--- a/crates/test/Cargo.toml
+++ b/crates/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-test"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 description = "Internal testing crate for wasm-bindgen"
 license = "MIT/Apache-2.0"
@@ -9,11 +9,11 @@ repository = "https://github.com/rustwasm/wasm-bindgen"
 [dependencies]
 console_error_panic_hook = '0.1'
 futures = "0.1"
-js-sys = { path = '../js-sys', version = '0.2.5' }
+js-sys = { path = '../js-sys', version = '0.2.6' }
 scoped-tls = "0.1"
-wasm-bindgen = { path = '../..', version = '0.2.20' }
-wasm-bindgen-futures = { path = '../futures', version = '0.2.20' }
-wasm-bindgen-test-macro = { path = '../test-macro', version = '=0.2.20' }
+wasm-bindgen = { path = '../..', version = '0.2.21' }
+wasm-bindgen-futures = { path = '../futures', version = '0.2.21' }
+wasm-bindgen-test-macro = { path = '../test-macro', version = '=0.2.21' }
 
 [lib]
 test = false
diff --git a/crates/wasm-interpreter/Cargo.toml b/crates/wasm-interpreter/Cargo.toml
index 2800d839..6dd0f9c5 100644
--- a/crates/wasm-interpreter/Cargo.toml
+++ b/crates/wasm-interpreter/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-wasm-interpreter"
-version = "0.2.20"
+version = "0.2.21"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/wasm-interpreter"
diff --git a/crates/web-sys/Cargo.toml b/crates/web-sys/Cargo.toml
index 63ec1689..5ad947b0 100644
--- a/crates/web-sys/Cargo.toml
+++ b/crates/web-sys/Cargo.toml
@@ -18,13 +18,13 @@ wasm-bindgen-webidl = { path = "../webidl", version = "=0.2.17" }
 sourcefile = "0.1"
 
 [dependencies]
-wasm-bindgen = { path = "../..", version = "0.2.20" }
-js-sys = { path = '../js-sys', version = '0.2.5' }
+wasm-bindgen = { path = "../..", version = "0.2.21" }
+js-sys = { path = '../js-sys', version = '0.2.6' }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 futures = "0.1"
-wasm-bindgen-test = { path = '../test', version = '0.2.20' }
-wasm-bindgen-futures = { path = '../futures', version = '0.2.20' }
+wasm-bindgen-test = { path = '../test', version = '0.2.21' }
+wasm-bindgen-futures = { path = '../futures', version = '0.2.21' }
 
 # This list is generated by passing `__WASM_BINDGEN_DUMP_FEATURES=foo` when
 # compiling this crate which dumps the total list of features to a file called
diff --git a/crates/webidl/Cargo.toml b/crates/webidl/Cargo.toml
index 1a6451f7..c7203ca6 100644
--- a/crates/webidl/Cargo.toml
+++ b/crates/webidl/Cargo.toml
@@ -19,5 +19,5 @@ log = "0.4.1"
 proc-macro2 = "0.4.8"
 quote = '0.6'
 syn = { version = '0.15', features = ['full'] }
-wasm-bindgen-backend = { version = "=0.2.20", path = "../backend" }
+wasm-bindgen-backend = { version = "=0.2.21", path = "../backend" }
 weedle = "0.7"