v0.320.0

SamChou19815 · meta-codesync[bot] · commit 7c64d4b077bc · 2026-06-20T16:26:44.000-07:00
Reviewed By: gkz

Differential Revision: D109219236

fbshipit-source-id: 59241a532b5948db65d9ecd57ccf46645cb3aef8
diff --git a/Changelog.md b/Changelog.md
@@ -1,3 +1,8 @@
+### 0.320.0
+
+Likely to cause new Flow errors:
+* Object operations on class instance types now produce plain object types instead of preserving the class instance's nominal identity. This affects object type spreads and utilities such as `Partial`, `Required`, `Readonly`, `Pick`, and `Omit`. [Example](https://flow.org/try/#1N4Igxg9gdgZglgcxALlAIwIZoKYBsD6uEEAztvhgE6UYCe+JADpdhgCYowa5kA0I2KAFcAtiRQAXSkOz9sAD0bZKcEYIncAdJCgkJ+RlQxjO3PgMXLV6rRJINaUDfMnTZIFhjATN0p9ZQQDCEJCBEMCTgwEH4hMnwhKABrKAgAdyh8OEywCLAAC3wANyo4LFxscWQuHnc2bCL8aFxaTQlaJXwWZlNa-nrmbFyJbDYAWnalXvMSJOwJAtox4VxcafdZ+cXl0RxKddioMAqqCY7sA5BEqCHKkiol7JKVDCdL69uSe8oliEZI6DcMYFDDZd66DAwbBjBDzEaUEhjMgSeFVGrmRJxUZjZhhOBkS4KJQqNROLQYL7KfR-ZQRCD7apmbAAX34kHqgWOFJIAAIAMI84AAHSgPJ58mQPOEIj2PIAvDyAAwAbhFYpEAAoAJSSooQOBsQXMkXGqAi+pclg8nR6HmGSiRbiSgAKVEduAAPHyAHyqqD2908in85U8gD0YZ5AFFqPTJQADV0Osqen3xnn4oOiiBoABWQwkPMmsilEELGB58b56eyeleYGwmhFIuLPIAyoN2AKFcBNH2+bweX3NMy-RbcFRsNboLamJ42JKO-O+X656xDcGV+HIzHKHGeWv2NkEFmM7oNEcp63cWwhA3ea8eTn894i+cm2anOceQApOISAANeUeWdKIki9QcAHJ5Eg31zSGCcrRtQtc3-ADJT-PQAL9VCsM0TUtVDCNo1jSgE1AsBwIHHloNg9NmloacyVrIt8inRgwNGJ8MjtPdiXaD8YhAIplBIOBoECIpFU0ABmABGABOTRFRAZkgA)
+
 ### 0.319.0
 
 Likely to cause new Flow errors:
diff --git a/flow_parser.opam b/flow_parser.opam
@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "flow_parser"
-version: "0.319.0"
+version: "0.320.0"
 maintainer: "flow@fb.com"
 authors: ["Flow Team <flow@fb.com>"]
 homepage: "https://github.com/facebook/flow/tree/master/src/parser"
diff --git a/flowtype.opam b/flowtype.opam
@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "flowtype"
-version: "0.319.0"
+version: "0.320.0"
 maintainer: "flow@fb.com"
 authors: "Flow Team <flow@fb.com>"
 license: "MIT"
@@ -15,7 +15,7 @@ depends: [
   "camlp-streams" {>= "5.0.1"}
   "dtoa" {>= "0.3.2"}
   "fileutils" {>= "0.6.4"}
-  "flow_parser" {= "0.319.0"}
+  "flow_parser" {= "0.320.0"}
   "inotify" {os = "linux" & >= "2.4.1"}
   "ounit2" {with-test}
   "lwt" {>= "5.7.0"}
diff --git a/packages/babel-plugin-syntax-flow-parser/package.json b/packages/babel-plugin-syntax-flow-parser/package.json
@@ -10,7 +10,7 @@
     "url": "https://github.com/facebook/flow.git"
   },
   "dependencies": {
-    "flow-parser": "0.319.0"
+    "flow-parser": "0.320.0"
   },
   "files": [
     "dist",
diff --git a/packages/flow-eslint/package.json b/packages/flow-eslint/package.json
@@ -24,7 +24,7 @@
   ],
   "dependencies": {
     "esrecurse": "^4.3.0",
-    "flow-estree": "0.319.0",
-    "flow-parser": "0.319.0"
+    "flow-estree": "0.320.0",
+    "flow-parser": "0.320.0"
   }
 }
diff --git a/packages/flow-estree/package.json b/packages/flow-estree/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flow-estree",
-  "version": "0.319.0",
+  "version": "0.320.0",
   "description": "Flow types for the Flow-ESTree spec produced by the Flow Rust parser, forked from hermes-estree.",
   "homepage": "https://flow.org",
   "license": "MIT",
diff --git a/packages/flow-parser/package.json b/packages/flow-parser/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flow-parser",
-  "version": "0.319.0",
+  "version": "0.320.0",
   "description": "JavaScript parser written in OCaml. Produces ESTree AST",
   "homepage": "https://flow.org",
   "license": "MIT",
@@ -23,7 +23,7 @@
     "build": "make js"
   },
   "dependencies": {
-    "flow-estree": "0.319.0"
+    "flow-estree": "0.320.0"
   },
   "devDependencies": {
     "@babel/generator": "7.7.4",
diff --git a/packages/flow-remove-types/package.json b/packages/flow-remove-types/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flow-remove-types",
-  "version": "2.319.0",
+  "version": "2.320.0",
   "description": "Removes Flow type annotations from JavaScript files with speed and simplicity.",
   "author": {
     "name": "Flow Team",
diff --git a/packages/flow-transform/package.json b/packages/flow-transform/package.json
@@ -14,8 +14,8 @@
     "esquery": "^1.4.0",
     "flow-enums-runtime": "^0.0.6",
     "flow-eslint": "0.0.1",
-    "flow-estree": "0.319.0",
-    "flow-parser": "0.319.0",
+    "flow-estree": "0.320.0",
+    "flow-parser": "0.320.0",
     "string-width": "4.2.3"
   },
   "peerDependencies": {
diff --git a/packages/flow-upgrade/package.json b/packages/flow-upgrade/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flow-upgrade",
-  "version": "2.30.0",
+  "version": "2.31.0",
   "description": "A utility for upgrading your codebase to the latest version of Flow.",
   "engines": {
     "node": ">=14"
diff --git a/packages/try-flow-website-js/package.json b/packages/try-flow-website-js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "try-flow-website-js",
-  "version": "0.319.0",
+  "version": "0.320.0",
   "description": "An NPM package to hold compiled `flow.js` and libdefs for every Flow version.",
   "license": "MIT",
   "repository": "facebook/flow",
diff --git a/rust_port/crates/flow_common/src/flow_version.rs b/rust_port/crates/flow_common/src/flow_version.rs
@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-const RELEASE_VERSION: &str = "0.319.0";
+const RELEASE_VERSION: &str = "0.320.0";
 
 #[cfg(fbcode_build)]
 static VERSION: std::sync::LazyLock<String> = std::sync::LazyLock::new(|| {
diff --git a/website/docs/getting-started.md b/website/docs/getting-started.md
@@ -148,7 +148,7 @@ npm install --save-dev flow-bin
   "name": "my-flow-project",
   "version": "1.0.0",
   "devDependencies": {
-    "flow-bin": "^0.319.0"
+    "flow-bin": "^0.320.0"
   },
   "scripts": {
     "flow": "flow"

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@`
`24`	`24`	`],`
`25`	`25`	`"dependencies": {`
`26`	`26`	`"esrecurse": "^4.3.0",`
`27`		`- "flow-estree": "0.319.0",`
`28`		`- "flow-parser": "0.319.0"`
	`27`	`+ "flow-estree": "0.320.0",`
	`28`	`+ "flow-parser": "0.320.0"`
`29`	`29`	`}`
`30`	`30`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`{`
`2`	`2`	`"name": "flow-estree",`
`3`		`- "version": "0.319.0",`
	`3`	`+ "version": "0.320.0",`
`4`	`4`	`"description": "Flow types for the Flow-ESTree spec produced by the Flow Rust parser, forked from hermes-estree.",`
`5`	`5`	`"homepage": "https://flow.org",`
`6`	`6`	`"license": "MIT",`
Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`{`
`2`	`2`	`"name": "flow-remove-types",`
`3`		`- "version": "2.319.0",`
	`3`	`+ "version": "2.320.0",`
`4`	`4`	`"description": "Removes Flow type annotations from JavaScript files with speed and simplicity.",`
`5`	`5`	`"author": {`
`6`	`6`	`"name": "Flow Team",`
Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`{`
`2`	`2`	`"name": "flow-upgrade",`
`3`		`- "version": "2.30.0",`
	`3`	`+ "version": "2.31.0",`
`4`	`4`	`"description": "A utility for upgrading your codebase to the latest version of Flow.",`
`5`	`5`	`"engines": {`
`6`	`6`	`"node": ">=14"`