diff --git a/doc/Features.md b/doc/Features.md
index 1896e6ce799..e6b1d1a0b0b 100644
--- a/doc/Features.md
+++ b/doc/Features.md
@@ -31,13 +31,19 @@ Hermes plans to target ECMAScript 2015 (ES6), with some carefully considered exc
 
 ### In Progress
 
-- `let` and `const` (block scoped variables, with support for the temporal dead zone)
-- Classes and method definitions
+- WeakRef
+- BigInt
 - ES modules (`import` and `export`)
 - `Intl` API glue has been added to enable community contribution of a complete, spec-compliant implementation on multiple platforms
 - Async function (`async` and `await`).
 - `Symbol.prototype.description` (it's not fully spec-conformant yet. `Symbol().description` should be `undefined` but it's currently `''`).
 
+### Planned
+- RegExp match indices and named capture groups
+- Expanded Intl functionality (e.g., DisplayNames, ListFormat, PluralRules, RelativeTimeFormat, and Locale)
+- `let` and `const` (block scoped variables, with support for the temporal dead zone)
+- Classes and method definitions
+
 ### Excluded From Support
 
 - Realms