Update JavaScript extraction notes and supported versions

Author: Felicity Chapman

change-notes/1.20/extractor-javascript.md

@@ -2,25 +2,11 @@
 
 # Improvements to JavaScript analysis
 
-> NOTES
->
-> Please describe your changes in terms that are suitable for
-> customers to read. These notes will have only minor tidying up
-> before they are published as part of the release notes.
->
-> This file is written for lgtm users and should contain *only*
-> notes about changes that affect lgtm enterprise users. Add
-> any other customer-facing changes to the `studio-java.md`
-> file.
->
-
-## General improvements
-
 ## Changes to code extraction
 
 * Parallel extraction of JavaScript files (but not TypeScript files) on LGTM is now supported. The `LGTM_THREADS` environment variable can be set to indicate how many files should be extracted in parallel. If this variable is not set, parallel extraction is disabled.
-* The extractor now offers experimental support for [E4X](https://developer.mozilla.org/en-US/docs/Archive/Web/E4X), a legacy language extension developed by Mozilla.
-* The extractor now supports additional [Flow](https://flow.org/) syntax.
-* The extractor now supports [Nullish Coalescing](https://github.com/tc39/proposal-nullish-coalescing) expressions.
-* The extractor now supports [TypeScript 3.2](https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-2.html).
-* The TypeScript extractor now handles the control-flow of logical operators and destructuring assignments more accurately.
+* Experimental support for [E4X](https://developer.mozilla.org/en-US/docs/Archive/Web/E4X), a legacy language extension developed by Mozilla, is available.
+* Additional [Flow](https://flow.org/) syntax is now supported.
+* [Nullish Coalescing](https://github.com/tc39/proposal-nullish-coalescing) expressions are now supported.
+* [TypeScript 3.2](https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-2.html) is now supported.
+* The TypeScript extractor now handles the control flow of logical operators and destructuring assignments more accurately.

change-notes/1.20/support/versions-compilers.csv

@@ -13,4 +13,4 @@ Java,"Java 11 [2]_. or lower","javac (OpenJDK and Oracle JDK)
 Eclipse compiler for Java (ECJ) batch compiler",``.java``
 JavaScript,ECMAScript 2018 or lower,Not applicable,"``.js``, ``.jsx``, ``.mjs``, ``.es``, ``.es6``, ``.htm``, ``.html``, ``.xhm``, ``.xhtml``, ``.vue``, ``.json`` [3]_."
 Python,"2.7, 3.5, 3.6, 3.7",Not applicable,``.py``
-TypeScript [4]_.,"2.6, 2.7, 2.8, 2.9, 3.0, 3.1",Standard TypeScript compiler,"``.ts``, ``.tsx``"
+TypeScript [4]_.,"2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2",Standard TypeScript compiler,"``.ts``, ``.tsx``"