v0.253.0

Reviewed By: gkz

Differential Revision: D65952046

fbshipit-source-id: b924f524f5f67e995bf3905dfda4ff5468a85ae8

Changelog.md

@@ -1,3 +1,27 @@
+### 0.253.0
+
+Likely to cause new Flow errors:
+* `React$ElementRef` is now implemented with a conditional type instead of a builtin Flow utility type. You might see new errors with generic `React$ElementRef`. Most of the times, you should replace `React.ElementRef<T>` with just `T` if there are no other uses of generic `T`.
+* We've increased safety in checks involving recursive types.
+
+New Features:
+* You can now set multiple [`@flowtyped`](https://flow.org/en/docs/libdefs/creation/#toc-declaring-a-module-in-at-flowtyped) like directories via `module.declaration_dirnames` config. e.g.
+```
+module.declaration_dirnames=<PROJECT_ROOT>/decl1
+module.declaration_dirnames=<PROJECT_ROOT>/decl2
+```
+Please note that when you set this, `@flowtyped` at the root will no longer be considered special, and you will need to explicitly add it like
+```
+module.declaration_dirnames=<PROJECT_ROOT>/@flowtyped
+```
+
+Notable bug fixes:
+* A generic type as input to conditional type will have type parameters pinned with their default or upper bound, instead of being `empty`.
+* We fixed a cache collision issue that might cause instantiation of a value-imported generic component type to interfere with a typeof-imported generic component type.
+
+IDE:
+* Flow now respects `includeDeclaration` from LSP request for find-references command. In practice, this means that "find all references" in vscode will continue to return both declaration and all uses, while "go to references" will exclude the declaration.
+
 ### 0.252.0
 
 Likely to cause new Flow errors:

flow_parser.opam

@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "flow_parser"
-version: "0.252.0"
+version: "0.253.0"
 maintainer: "[email protected]"
 authors: ["Flow Team <[email protected]>"]
 homepage: "https://github.com/facebook/flow/tree/master/src/parser"

flowtype.opam

@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "flowtype"
-version: "0.252.0"
+version: "0.253.0"
 maintainer: "[email protected]"
 authors: "Flow Team <[email protected]>"
 license: "MIT"
@@ -15,7 +15,7 @@ depends: [
   "camlp-streams" {>= "5.0.1"}
   "dtoa" {>= "0.3.2"}
   "fileutils" {>= "0.6.4"}
-  "flow_parser" {= "0.252.0"}
+  "flow_parser" {= "0.253.0"}
   "inotify" {os = "linux" & >= "2.4.1"}
   "ounit2" {with-test}
   "lwt" {>= "5.7.0"}

packages/flow-parser-bin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "flow-parser-bin",
-  "version": "0.252.0",
+  "version": "0.253.0",
   "description": "The Flow JavaScript parser, via bindings to the native OCaml implementation",
   "main": "index.js",
   "repository": "https://github.com/facebook/flow.git",

packages/flow-parser/package.json

@@ -1,6 +1,6 @@
 {
   "name": "flow-parser",
-  "version": "0.252.0",
+  "version": "0.253.0",
   "description": "JavaScript parser written in OCaml. Produces ESTree AST",
   "homepage": "https://flow.org",
   "license": "MIT",

packages/flow-remove-types/package.json

@@ -1,6 +1,6 @@
 {
   "name": "flow-remove-types",
-  "version": "2.252.0",
+  "version": "2.253.0",
   "description": "Removes Flow type annotations from JavaScript files with speed and simplicity.",
   "author": {
     "name": "Flow Team",

packages/try-flow-website-js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "try-flow-website-js",
-  "version": "0.252.0",
+  "version": "0.253.0",
   "description": "An NPM package to hold compiled `flow.js` and libdefs for every Flow version.",
   "license": "MIT",
   "repository": "facebook/flow",

src/common/flow_version.ml

@@ -5,4 +5,4 @@
  * LICENSE file in the root directory of this source tree.
  *)
 
-let version = "0.252.0"
+let version = "0.253.0"

website/docs/install.md

@@ -126,7 +126,7 @@ npm install --save-dev flow-bin
   "name": "my-flow-project",
   "version": "1.0.0",
   "devDependencies": {
-    "flow-bin": "^0.252.0"
+    "flow-bin": "^0.253.0"
   },
   "scripts": {
     "flow": "flow"