Add some notes

lib/Readme.md

@@ -6,16 +6,16 @@ After running `yarn build` each file comes from:
 
 Latest:
 
-`react`: `build\oss-stable\react\umd\react.development.js`
-`react-dom`: `build\oss-stable\react-dom\umd\react-dom.development.js`
-`scheduler`: `build\oss-stable\scheduler\umd\scheduler.development.js`
-`react-cache`: `build\oss-stable\react-cache\cjs\react-cache.development.js`
+- `react`: `build\oss-stable\react\umd\react.development.js`
+- `react-dom`: `build\oss-stable\react-dom\umd\react-dom.development.js`
+- `scheduler`: `build\oss-stable\scheduler\umd\scheduler.development.js`
+- `react-cache`: `build\oss-stable\react-cache\cjs\react-cache.development.js`
 
 16:
 
-`react`: `build\node_modules\react\umd\react.development.js`
-`react-dom`: `build\node_modules\react-dom\umd\react-dom.development.js`
-`scheduler`: `build\node_modules\scheduler\umd\scheduler.development.js`
+- `react`: `build\node_modules\react\umd\react.development.js`
+- `react-dom`: `build\node_modules\react-dom\umd\react-dom.development.js`
+- `scheduler`: `build\node_modules\scheduler\umd\scheduler.development.js`
 
 The build automatically produces ESM for react and react-dom but not scheduler
 so the scheduler package has been manually updated to ESM.
@@ -24,3 +24,12 @@ We run prettier on the build output in this repo to make comparisons more
 consistent and less dependent on build process whitespace handling
 
 For `react-cache` we make a fake profiling build from the production build.
+
+## Fun notable changes
+
+### From 2acfb7b60
+
+- Diff properties in the commit phase instead of generating an update payload - facebook/react#26583
+- Ship diffInCommitPhase - facebook/react#27409
+- Remove invokeGuardedCallback and replay trick - facebook/react#28515
+- \[Fiber\] Don't Rethrow Errors at the Root - facebook/react#28627