Merge branch 'juerg/1.93.2' into 'master'

Prepare 1.93.2 development snapshot

See merge request BuildStream/buildstream!1886
diff --git a/NEWS b/NEWS
index 4b453b0..b8c5e7a 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,11 @@
 (unreleased)
 ============
 
+
+==================
+buildstream 1.93.2
+==================
+
 Core
 ----
 
@@ -14,12 +19,20 @@
   o BREAKING CHANGE: "format-version" is removed and replaced with "min-version",
     which is now required to be specified in project.conf.
 
+  o Incremental workspace builds are supported again.
+
 CLI
 ---
 
   o BREAKING CHANGE: `bst shell --sysroot` has been removed. This is no longer
     needed now that we support caching buildtrees in CAS.
 
+API
+---
+
+  o The `Directory` API has been extended to cover the use cases of more
+    element plugins.
+
 
 ==================
 buildstream 1.93.1