Update index.md

docs/docs/reference/release-notes/v3.11/index.md

@@ -8,7 +8,7 @@ Welcome to `gatsby@3.11.0` release (August 2021 #1)
 
 Key highlights of this release:
 
-- [TODO](#todo) - TODO
+- [Improvements to Parallel Query Running](#improvements-to-parallel-query-running) - Better performance and more configurable
 
 Also check out [notable bugfixes](#notable-bugfixes--improvements).
 
@@ -21,13 +21,20 @@ if you have any [issues](https://github.com/gatsbyjs/gatsby/issues).
 
 ---
 
-## TODO
+## Improvements to Parallel Query Running
 
-TODO
+In case you missed it, in [3.10](/docs/reference/release-notes/v3.10) we've added experimental support for Parallel Query Running. Depending on your site you will see dramatic improvements in `gatsby build` performance. We've moved more information [into LMDB](https://github.com/gatsbyjs/gatsby/pull/32431), fixed a [bug](https://github.com/gatsbyjs/gatsby/pull/32520) and [optimized](https://github.com/gatsbyjs/gatsby/pull/32440) how we merge the state of the workers.
+
+To learn more about Parallel Query Running head to the [previous release notes](/docs/reference/release-notes/v3.10/#experimental-parallel-query-running).
+
+Please give it a try and report back in the [PQR GitHub Discussion](https://github.com/gatsbyjs/gatsby/discussions/32389). We really appreciate any feedback!
 
 ## Notable bugfixes & improvements
 
-TODO
+- `gatsby`: Display message about unfit flags found in `gatsby-config.js` per [PR #32394](https://github.com/gatsbyjs/gatsby/pull/32394)
+- `gatsby`: Correct pagination logic (fixing a regression) per [PR #32496](https://github.com/gatsbyjs/gatsby/pull/32496)
+- `gatsby-source-shopify`: Add a query for `ShopifyLocation` and `ShopifyInventoryLevel` per [PR #32450](https://github.com/gatsbyjs/gatsby/pull/32450)
+- `gatsby-plugin-mdx`: Performance improvement for a specific usage scenario (multiple GraphQL fields that require MDX processing) per [PR #32462](https://github.com/gatsbyjs/gatsby/pull/32462)
 
 ## Contributors