Update SIPs state

scala-improvement-bot · scala-improvement-bot · commit 0e8d74620bba · 2023-06-20T00:22:16.000Z
diff --git a/_sips/sips/concurrency-with-higher-order-coroutines.md b/_sips/sips/concurrency-with-higher-order-coroutines.md
@@ -0,0 +1,7 @@
+---
+title: SIP-55 - Concurrency with Higher-Order Coroutines
+status: under-review
+pull-request-number: 63
+stage: design
+
+---
