diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ddfa3e36c2e..8032c17e87a 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.11.1"
+  ".": "0.12.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7dc8c64779d..749c7cfd0a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,53 @@
 # Changelog
 
+## [0.12.0](https://github.com/noir-lang/noir/compare/v0.11.1...v0.12.0) (2023-09-15)
+
+
+### ⚠ BREAKING CHANGES
+
+* Change `noir-lang/noir-source-resolver` to `noir-lang/source-resolver` ([#2718](https://github.com/noir-lang/noir/issues/2718))
+* use american spelling of "serialize" in stdlib ([#2675](https://github.com/noir-lang/noir/issues/2675))
+* Restrict packages to contain at most a single contract ([#2668](https://github.com/noir-lang/noir/issues/2668))
+* use two limbs for scalar mul ([#2602](https://github.com/noir-lang/noir/issues/2602))
+
+### Features
+
+* Add initial version of noir.js ([#2681](https://github.com/noir-lang/noir/issues/2681)) ([e1687c9](https://github.com/noir-lang/noir/commit/e1687c9443aaa58030c38942b6aa22001e6c3e57))
+* Allow methods defined in a contract to be non-entry points ([#2687](https://github.com/noir-lang/noir/issues/2687)) ([2103b2f](https://github.com/noir-lang/noir/commit/2103b2ffb640fe457b24be09b6d63fe6ee1c6ac1))
+* Compile circuits and query circuit sizes in parallel for `nargo info` ([#2665](https://github.com/noir-lang/noir/issues/2665)) ([f173c05](https://github.com/noir-lang/noir/commit/f173c05cbff96dfc48a22cc2f1f76396b968d5a0))
+* Compile workspace packages in parallel ([#2612](https://github.com/noir-lang/noir/issues/2612)) ([16e5e4d](https://github.com/noir-lang/noir/commit/16e5e4ddb33209a84e29dc4bea5813baba8bd5f3))
+* Handle `should_fail_with` case ([#2541](https://github.com/noir-lang/noir/issues/2541)) ([291d002](https://github.com/noir-lang/noir/commit/291d0025b7d7db0a1b11fb05b72d45e8f36405da))
+* **lsp:** Add nargo capabilities for test metadata ([#2532](https://github.com/noir-lang/noir/issues/2532)) ([b4ee23e](https://github.com/noir-lang/noir/commit/b4ee23e763a65323879eeda51be3a0c302b3ede6))
+* **nargo:** Allow installing custom backends from the CLI ([#2632](https://github.com/noir-lang/noir/issues/2632)) ([c0c462c](https://github.com/noir-lang/noir/commit/c0c462c4b1e686816e300c504c4dee163af10805))
+* **parser:** Allow multiple attributes ([#2537](https://github.com/noir-lang/noir/issues/2537)) ([7cdff2e](https://github.com/noir-lang/noir/commit/7cdff2ecbdb42c5f8ef33da6efde325ac971bbdb))
+* **traits:** Add default and override of methods ([#2585](https://github.com/noir-lang/noir/issues/2585)) ([98c3ba9](https://github.com/noir-lang/noir/commit/98c3ba90907f55533f895760621f3334e75be8ff))
+
+
+### Bug Fixes
+
+* Avoid overflows in integer division ([#2180](https://github.com/noir-lang/noir/issues/2180)) ([6665210](https://github.com/noir-lang/noir/commit/66652102adee3f3318ab7a538c6f9684420f00eb))
+* **aztec_noir:** Support bools as input types ([#2674](https://github.com/noir-lang/noir/issues/2674)) ([9e7a0f0](https://github.com/noir-lang/noir/commit/9e7a0f08795a4c86ab4b50f88898eabcb5462d7e))
+* Failing js tests ([#2722](https://github.com/noir-lang/noir/issues/2722)) ([398b6d7](https://github.com/noir-lang/noir/commit/398b6d73a16424a1467b0d48756b4eeb8f84e408))
+* Fix `update_acir` deleting all debug information ([#2643](https://github.com/noir-lang/noir/issues/2643)) ([a8a5395](https://github.com/noir-lang/noir/commit/a8a5395f357ef26890af526f417418c49b032d17))
+* Fix compilation using `aztec` feature flag ([#2663](https://github.com/noir-lang/noir/issues/2663)) ([7f6fe46](https://github.com/noir-lang/noir/commit/7f6fe46f8bc00f24ff8d14b3a517e27b50db4ee5))
+* Implement auto-dereferencing when calling methods ([#2581](https://github.com/noir-lang/noir/issues/2581)) ([3c731b1](https://github.com/noir-lang/noir/commit/3c731b11b31b8556eeebc4fe59b68609aa96c463))
+* Initialise arrays returned by brillig ([#2048](https://github.com/noir-lang/noir/issues/2048)) ([788dfb4](https://github.com/noir-lang/noir/commit/788dfb45e025786b13035d4c3d6ccf1e1614ef2f))
+* Remove duplicate file extension in stack trace ([#2655](https://github.com/noir-lang/noir/issues/2655)) ([1114871](https://github.com/noir-lang/noir/commit/1114871d538767c053d71c67577890dd29f0b490))
+* **ssa:** Slice mergers with multiple ifs ([#2597](https://github.com/noir-lang/noir/issues/2597)) ([6110638](https://github.com/noir-lang/noir/commit/6110638ec743616b9a3f38650838dda631a25efd))
+* Support for conditional stores ([#2553](https://github.com/noir-lang/noir/issues/2553)) ([6e6d952](https://github.com/noir-lang/noir/commit/6e6d952c052a893e897eaa42b36d3a15426a4f78))
+* Use high limb in scalar multiplication ([#2619](https://github.com/noir-lang/noir/issues/2619)) ([9014b8a](https://github.com/noir-lang/noir/commit/9014b8a7cd43112e2129b6a7c5e76708e5ad37b0))
+* Use two limbs for scalar mul ([#2602](https://github.com/noir-lang/noir/issues/2602)) ([d0884ca](https://github.com/noir-lang/noir/commit/d0884cae61926c2f76e27b87212b8c4bd239cbb0))
+* **wasm:** Apply transformation map to circuit debug information in `noir_wasm` ([#2635](https://github.com/noir-lang/noir/issues/2635)) ([9da822f](https://github.com/noir-lang/noir/commit/9da822f59923a9953894c43afd1ddbeffa871dbf))
+* **wasm:** Avoid requesting stdlib paths from the source-resolver ([#2650](https://github.com/noir-lang/noir/issues/2650)) ([aebab34](https://github.com/noir-lang/noir/commit/aebab34520b31502bb8bf0c028aa2ea8bb33142b))
+* **wasm:** Remove stacker from dependencies ([#2637](https://github.com/noir-lang/noir/issues/2637)) ([36691ab](https://github.com/noir-lang/noir/commit/36691aba1be6c26216b9da518543e4a1665da56f))
+
+
+### Miscellaneous Chores
+
+* Change `noir-lang/noir-source-resolver` to `noir-lang/source-resolver` ([#2718](https://github.com/noir-lang/noir/issues/2718)) ([31e489e](https://github.com/noir-lang/noir/commit/31e489e85582de702d5798c633de9b7c4008169c))
+* Restrict packages to contain at most a single contract ([#2668](https://github.com/noir-lang/noir/issues/2668)) ([dc3358b](https://github.com/noir-lang/noir/commit/dc3358b7e12ba25bedf3aa47a82b2e994a41e8c0))
+* Use american spelling of "serialize" in stdlib ([#2675](https://github.com/noir-lang/noir/issues/2675)) ([56c96d0](https://github.com/noir-lang/noir/commit/56c96d06b6c18cbb59320d1d0745536ddcf2d4dd))
+
 ## [0.11.1](https://github.com/noir-lang/noir/compare/v0.11.0...v0.11.1) (2023-09-07)
 
 
diff --git a/Cargo.lock b/Cargo.lock
index 232d8b6eff6..8cccc14d393 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -218,7 +218,7 @@ dependencies = [
 
 [[package]]
 name = "arena"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "generational-arena",
 ]
@@ -1436,7 +1436,7 @@ dependencies = [
 
 [[package]]
 name = "fm"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "cfg-if",
  "codespan-reporting",
@@ -1969,7 +1969,7 @@ dependencies = [
 
 [[package]]
 name = "iter-extended"
-version = "0.11.1"
+version = "0.12.0"
 
 [[package]]
 name = "itertools"
@@ -2164,7 +2164,7 @@ checksum = "7843ec2de400bcbc6a6328c958dc38e5359da6e93e72e37bc5246bf1ae776389"
 
 [[package]]
 name = "nargo"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "base64",
@@ -2183,7 +2183,7 @@ dependencies = [
 
 [[package]]
 name = "nargo_cli"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "acvm-backend-barretenberg",
@@ -2227,7 +2227,7 @@ dependencies = [
 
 [[package]]
 name = "nargo_toml"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "dirs",
  "fm",
@@ -2253,7 +2253,7 @@ dependencies = [
 
 [[package]]
 name = "noir_lsp"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "async-lsp",
@@ -2275,7 +2275,7 @@ dependencies = [
 
 [[package]]
 name = "noir_wasm"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "build-data",
@@ -2293,7 +2293,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_abi"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "iter-extended",
@@ -2310,7 +2310,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_abi_wasm"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "build-data",
@@ -2326,7 +2326,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_driver"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "base64",
@@ -2341,7 +2341,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_errors"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "chumsky",
@@ -2354,7 +2354,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_evaluator"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "fxhash",
@@ -2369,7 +2369,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_frontend"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "arena",
@@ -2390,7 +2390,7 @@ dependencies = [
 
 [[package]]
 name = "noirc_printable_type"
-version = "0.11.1"
+version = "0.12.0"
 dependencies = [
  "acvm",
  "iter-extended",
diff --git a/Cargo.toml b/Cargo.toml
index 0120cb3cb8a..dac1c15e0a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ resolver = "2"
 
 [workspace.package]
 # x-release-please-start-version
-version = "0.11.1"
+version = "0.12.0"
 # x-release-please-end
 authors = ["The Noir Team <team@noir-lang.org>"]
 edition = "2021"
diff --git a/compiler/source-resolver/package.json b/compiler/source-resolver/package.json
index 76ce4657c10..0014a5fa738 100644
--- a/compiler/source-resolver/package.json
+++ b/compiler/source-resolver/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@noir-lang/source-resolver",
-  "version": "1.1.4",
+  "version": "0.12.0",
   "license": "MIT",
   "main": "./lib-node/index_node.js",
   "types": "./types/index_node.d.ts",
diff --git a/compiler/wasm/package.json b/compiler/wasm/package.json
index 2155ac41a2e..9c513615255 100644
--- a/compiler/wasm/package.json
+++ b/compiler/wasm/package.json
@@ -3,7 +3,7 @@
   "collaborators": [
     "The Noir Team <team@noir-lang.org>"
   ],
-  "version": "0.11.1",
+  "version": "0.12.0",
   "license": "(MIT OR Apache-2.0)",
   "main": "./nodejs/noir_wasm.js",
   "types": "./web/noir_wasm.d.ts",
diff --git a/flake.nix b/flake.nix
index 94e9f233924..f4c986f75da 100644
--- a/flake.nix
+++ b/flake.nix
@@ -134,7 +134,7 @@
 
       sharedArgs = {
         # x-release-please-start-version
-        version = "0.11.1";
+        version = "0.12.0";
         # x-release-please-end
 
         src = pkgs.lib.cleanSourceWith {
diff --git a/tooling/noir_js/package.json b/tooling/noir_js/package.json
index 5eeccc3c790..5fc7bbcb62f 100644
--- a/tooling/noir_js/package.json
+++ b/tooling/noir_js/package.json
@@ -3,7 +3,7 @@
   "collaborators": [
     "The Noir Team <team@noir-lang.org>"
   ],
-  "version": "0.0.1",
+  "version": "0.12.0",
   "packageManager": "yarn@3.5.1",
   "license": "(MIT OR Apache-2.0)",
   "dependencies": {
diff --git a/tooling/noirc_abi_wasm/package.json b/tooling/noirc_abi_wasm/package.json
index fb5db6a97dc..448b3c6d7d4 100644
--- a/tooling/noirc_abi_wasm/package.json
+++ b/tooling/noirc_abi_wasm/package.json
@@ -3,7 +3,7 @@
   "collaborators": [
     "The Noir Team <team@noir-lang.org>"
   ],
-  "version": "0.10.3",
+  "version": "0.12.0",
   "license": "(MIT OR Apache-2.0)",
   "files": [
     "nodejs",