More CHANGELOG updates

CHANGELOG.md

@@ -22,6 +22,15 @@ Not released yet
 * More helper methods for `js_sys::Array` have been added.
   [#1749](https://github.com/rustwasm/wasm-bindgen/pull/1749)
 
+* Initial support for the WebAssembly multi-value proposal has been added.
+  [#1764](https://github.com/rustwasm/wasm-bindgen/pull/1764)
+
+* Constructors for `js_sys::Date` with optional parameters has been added.
+  [#1759](https://github.com/rustwasm/wasm-bindgen/pull/1759)
+
+* Headless tests can now be run against a remote webdriver client
+  [#1744](https://github.com/rustwasm/wasm-bindgen/pull/1744)
+
 ### Changed
 
 * The `passStringToWasm` function has been optimized for size.
@@ -32,6 +41,15 @@ Not released yet
 * BOM markers will not be preserved when passing strings to/from wasm.
   [#1730](https://github.com/rustwasm/wasm-bindgen/pull/1730)
 
+* Importing a `static` value which isn't a `JsValue` has been fixed.
+  [#1784](https://github.com/rustwasm/wasm-bindgen/pull/1784)
+
+* Converting `undefined` to a Rust value via `into_serde` has been fixed.
+  [#1783](https://github.com/rustwasm/wasm-bindgen/pull/1783)
+
+* Routine errors are no longer erroneously logged in debug mode.
+  [#1788](https://github.com/rustwasm/wasm-bindgen/pull/1788)
+
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 ## 0.2.50