diff --git a/docs/focus/2018-03-19.md b/docs/focus/2018-03-19.md
index 649117b70..fad5251e0 100644
--- a/docs/focus/2018-03-19.md
+++ b/docs/focus/2018-03-19.md
@@ -14,6 +14,9 @@
   - Published first draft of RFC for streamlining collaboration set-up, including the ability to give guests a URL that they can use to join your portal, and a "buddy list" for more quickly collaborating with coworkers and friends ([atom/teletype#344](https://github.com/atom/teletype/pull/344))
 - Tree-sitter
 - Xray
+ - Optimized selections. We're moving 1k selections in a document with 10k edits in ~2ms, and we think there's still room for improvement.
+ - Made significant progress on a switch to a client/server architecture.
+ - See [this week's in-depth Xray update](https://github.com/atom/xray/blob/master/docs/updates/2018_03_19.md) for more details.
 - Engineering Improvements
   - Process `.tsx` files within Atom as TypeScript in a kind of hacky way. [atom/atom#16944](https://github.com/atom/atom/pull/16944)
 - Reactor Duty
@@ -27,5 +30,7 @@
   - Add preliminary support for joining a portal via URL ([atom/teletype#109](https://github.com/atom/teletype/issues/109))
 - Tree-sitter
 - Xray
+ - Continue to make progress on the [PR switching Xray to a client/server architecture](https://github.com/atom/xray/pull/46). Hopefully we can merge it this week.
+ - Investigate a switch from JSON to protocol buffers.
 - Engineering Improvements
 - Reactor Duty