diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec8ff21f1..e5ac34a05 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,11 @@
 
 ## [[UnreleasedVersion]] - (_[[ReleaseDate]]_)
 
-[All changes in [[UnreleasedVersion]]](https://github.com/mozilla/uniffi-rs/compare/v0.17.0...HEAD).
+[All changes in [[UnreleasedVersion]]](https://github.com/mozilla/uniffi-rs/compare/v0.18.0...HEAD).
+
+## v0.18.0 - (_2022-05-05_)
+
+[All changes in v0.18.0](https://github.com/mozilla/uniffi-rs/compare/v0.17.0...v0.18.0).
 
 ### ⚠️ Breaking Changes ⚠️
 
diff --git a/examples/arithmetic/Cargo.toml b/examples/arithmetic/Cargo.toml
index b7a02f814..06c45d4dc 100644
--- a/examples/arithmetic/Cargo.toml
+++ b/examples/arithmetic/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-arithmetic"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/examples/callbacks/Cargo.toml b/examples/callbacks/Cargo.toml
index b5933c898..51ef589fe 100644
--- a/examples/callbacks/Cargo.toml
+++ b/examples/callbacks/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-callbacks"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/examples/custom-types/Cargo.toml b/examples/custom-types/Cargo.toml
index 88e9fd134..cf8924985 100644
--- a/examples/custom-types/Cargo.toml
+++ b/examples/custom-types/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-custom-types"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/examples/geometry/Cargo.toml b/examples/geometry/Cargo.toml
index 39f10c86a..f27d0bcdb 100644
--- a/examples/geometry/Cargo.toml
+++ b/examples/geometry/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-geometry"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/examples/rondpoint/Cargo.toml b/examples/rondpoint/Cargo.toml
index 6f3b94aa7..4a4ac3c4f 100644
--- a/examples/rondpoint/Cargo.toml
+++ b/examples/rondpoint/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-rondpoint"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/examples/sprites/Cargo.toml b/examples/sprites/Cargo.toml
index 7227d1bb0..2948dd46e 100644
--- a/examples/sprites/Cargo.toml
+++ b/examples/sprites/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-sprites"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/examples/todolist/Cargo.toml b/examples/todolist/Cargo.toml
index 71ef40ee9..a5b723fb9 100644
--- a/examples/todolist/Cargo.toml
+++ b/examples/todolist/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-example-todolist"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/callbacks/Cargo.toml b/fixtures/callbacks/Cargo.toml
index eee29fa6a..93dbd52df 100644
--- a/fixtures/callbacks/Cargo.toml
+++ b/fixtures/callbacks/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi-fixture-callbacks"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/fixtures/coverall/Cargo.toml b/fixtures/coverall/Cargo.toml
index 50b67db53..d52f929f0 100644
--- a/fixtures/coverall/Cargo.toml
+++ b/fixtures/coverall/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi-fixture-coverall"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/fixtures/ext-types/guid/Cargo.toml b/fixtures/ext-types/guid/Cargo.toml
index 875516b47..33ecfb20d 100644
--- a/fixtures/ext-types/guid/Cargo.toml
+++ b/fixtures/ext-types/guid/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-ext-types-guid"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/ext-types/lib/Cargo.toml b/fixtures/ext-types/lib/Cargo.toml
index edcfc357d..dda2df6ee 100644
--- a/fixtures/ext-types/lib/Cargo.toml
+++ b/fixtures/ext-types/lib/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-ext-types"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/ext-types/uniffi-one/Cargo.toml b/fixtures/ext-types/uniffi-one/Cargo.toml
index 9911f1b3e..0810b3501 100644
--- a/fixtures/ext-types/uniffi-one/Cargo.toml
+++ b/fixtures/ext-types/uniffi-one/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-ext-types-lib-one"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/external-types/crate-one/Cargo.toml b/fixtures/external-types/crate-one/Cargo.toml
index 0ea81fcb8..a5643547f 100644
--- a/fixtures/external-types/crate-one/Cargo.toml
+++ b/fixtures/external-types/crate-one/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "crate_one"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/external-types/crate-two/Cargo.toml b/fixtures/external-types/crate-two/Cargo.toml
index 86a6cf17c..23f02f00d 100644
--- a/fixtures/external-types/crate-two/Cargo.toml
+++ b/fixtures/external-types/crate-two/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "crate_two"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/external-types/lib/Cargo.toml b/fixtures/external-types/lib/Cargo.toml
index 7c891a61a..6c1627414 100644
--- a/fixtures/external-types/lib/Cargo.toml
+++ b/fixtures/external-types/lib/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-external-types"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/reexport-scaffolding-macro/Cargo.toml b/fixtures/reexport-scaffolding-macro/Cargo.toml
index c8ba71f9a..7de07b265 100644
--- a/fixtures/reexport-scaffolding-macro/Cargo.toml
+++ b/fixtures/reexport-scaffolding-macro/Cargo.toml
@@ -1,9 +1,10 @@
 [package]
 name = "uniffi-fixture-reexport-scaffolding-macro"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 edition = "2021"
 license = "MPL-2.0"
+publish = false
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/fixtures/regressions/cdylib-crate-type-dependency/cdylib-dependency/Cargo.toml b/fixtures/regressions/cdylib-crate-type-dependency/cdylib-dependency/Cargo.toml
index 5cadac4df..159bc5e29 100644
--- a/fixtures/regressions/cdylib-crate-type-dependency/cdylib-dependency/Cargo.toml
+++ b/fixtures/regressions/cdylib-crate-type-dependency/cdylib-dependency/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi-fixture-regression-cdylib-dependency"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["king6cong <king6cong@gmail.com>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/fixtures/regressions/cdylib-crate-type-dependency/ffi-crate/Cargo.toml b/fixtures/regressions/cdylib-crate-type-dependency/ffi-crate/Cargo.toml
index 6f9a12026..d6566d4d5 100644
--- a/fixtures/regressions/cdylib-crate-type-dependency/ffi-crate/Cargo.toml
+++ b/fixtures/regressions/cdylib-crate-type-dependency/ffi-crate/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-regression-cdylib-dependency-ffi-crate"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/regressions/enum-without-i32-helpers/Cargo.toml b/fixtures/regressions/enum-without-i32-helpers/Cargo.toml
index 5c0a69880..38c4d9320 100644
--- a/fixtures/regressions/enum-without-i32-helpers/Cargo.toml
+++ b/fixtures/regressions/enum-without-i32-helpers/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-regression-i356-enum-without-int-helpers"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/regressions/fully-qualified-types/Cargo.toml b/fixtures/regressions/fully-qualified-types/Cargo.toml
index 62b2af58b..f95abe2cf 100644
--- a/fixtures/regressions/fully-qualified-types/Cargo.toml
+++ b/fixtures/regressions/fully-qualified-types/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-regression-i1015-fully-qualified-types"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/regressions/kotlin-experimental-unsigned-types/Cargo.toml b/fixtures/regressions/kotlin-experimental-unsigned-types/Cargo.toml
index 6206ae4bb..a1f25e81c 100644
--- a/fixtures/regressions/kotlin-experimental-unsigned-types/Cargo.toml
+++ b/fixtures/regressions/kotlin-experimental-unsigned-types/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-regression-kotlin-experimental-unsigned-types"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/fixtures/swift-omit-labels/Cargo.toml b/fixtures/swift-omit-labels/Cargo.toml
index d81cdabc9..5e2dfe6c4 100644
--- a/fixtures/swift-omit-labels/Cargo.toml
+++ b/fixtures/swift-omit-labels/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi-fixture-swift-omit-argument-labels"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/fixtures/uitests/Cargo.toml b/fixtures/uitests/Cargo.toml
index dcc127980..4e5848110 100644
--- a/fixtures/uitests/Cargo.toml
+++ b/fixtures/uitests/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi_uitests"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/fixtures/uniffi-fixture-time/Cargo.toml b/fixtures/uniffi-fixture-time/Cargo.toml
index 2a4fd5eb4..3a10dc96a 100644
--- a/fixtures/uniffi-fixture-time/Cargo.toml
+++ b/fixtures/uniffi-fixture-time/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uniffi-fixture-time"
 edition = "2018"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 publish = false
diff --git a/uniffi/Cargo.toml b/uniffi/Cargo.toml
index c46174151..5b75d68f8 100644
--- a/uniffi/Cargo.toml
+++ b/uniffi/Cargo.toml
@@ -4,7 +4,7 @@ description = "a multi-language bindings generator for rust (runtime support cod
 documentation = "https://mozilla.github.io/uniffi-rs"
 homepage = "https://mozilla.github.io/uniffi-rs"
 repository = "https://github.com/mozilla/uniffi-rs"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 license = "MPL-2.0"
 edition = "2018"
@@ -19,7 +19,7 @@ log = "0.4"
 # Regular dependencies
 cargo_metadata = "0.13"
 paste = "1.0"
-uniffi_bindgen = { path = "../uniffi_bindgen", optional = true, version = "=0.17.0"}
+uniffi_bindgen = { path = "../uniffi_bindgen", optional = true, version = "=0.18.0" }
 static_assertions = "1.1.0"
 
 [features]
diff --git a/uniffi_bindgen/Cargo.toml b/uniffi_bindgen/Cargo.toml
index a2fb2f620..9e809042c 100644
--- a/uniffi_bindgen/Cargo.toml
+++ b/uniffi_bindgen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi_bindgen"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 description = "a multi-language bindings generator for rust (codegen and cli tooling)"
 documentation = "https://mozilla.github.io/uniffi-rs"
diff --git a/uniffi_build/Cargo.toml b/uniffi_build/Cargo.toml
index 9bed8596c..07b7a0e46 100644
--- a/uniffi_build/Cargo.toml
+++ b/uniffi_build/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi_build"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 description = "a multi-language bindings generator for rust (build script helpers)"
 documentation = "https://mozilla.github.io/uniffi-rs"
@@ -12,7 +12,7 @@ keywords = ["ffi", "bindgen"]
 
 [dependencies]
 anyhow = "1"
-uniffi_bindgen = { path = "../uniffi_bindgen", optional = true, version = "=0.17.0"}
+uniffi_bindgen = { path = "../uniffi_bindgen", optional = true, version = "=0.18.0" }
 
 [features]
 default = []
diff --git a/uniffi_macros/Cargo.toml b/uniffi_macros/Cargo.toml
index 0783c2ea7..e3f81f40b 100644
--- a/uniffi_macros/Cargo.toml
+++ b/uniffi_macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "uniffi_macros"
-version = "0.17.0"
+version = "0.18.0"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
 description = "a multi-language bindings generator for rust (convenience macros)"
 documentation = "https://mozilla.github.io/uniffi-rs"
@@ -18,7 +18,7 @@ proc-macro2 = "1.0"
 quote = "1.0"
 syn = { version = "1.0", features = ["extra-traits"] }
 glob = "0.3"
-uniffi_build = { path = "../uniffi_build", version = "=0.17.0"}
+uniffi_build = { path = "../uniffi_build", version = "=0.18.0" }
 
 [features]
 default = []
diff --git a/uniffi_testing/Cargo.toml b/uniffi_testing/Cargo.toml
index 32b96058a..dcf2cdc5a 100644
--- a/uniffi_testing/Cargo.toml
+++ b/uniffi_testing/Cargo.toml
@@ -1,9 +1,10 @@
 [package]
 name = "uniffi_testing"
 authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
-version = "0.17.0"
+version = "0.18.0"
 edition = "2021"
 license = "MPL-2.0"
+publish = false
 
 [dependencies]
 anyhow = "1"
diff --git a/weedle2/release.toml b/weedle2/release.toml
new file mode 100644
index 000000000..954564097
--- /dev/null
+++ b/weedle2/release.toml
@@ -0,0 +1 @@
+release = false