docs(NEWS.md): update release notes for upcoming release

Signed-off-by: Lars Wirzenius <liw@liw.fi>

NEWS.md

@@ -1,4 +1,4 @@
-# Release notes about `radicle-ci-broker`
+# Release notes for `radicle-ci-broker`
 
 This file summarizes the user-visible changes to `radicle-ci-broker`
 between releases.
@@ -13,8 +13,26 @@ This is the third release. It breaks all existing installations.
 * The CI broker now parses Git ref names for node identifiers more
   correctly.
 
+* When the node sends an event about a branch having changed, the CI
+  broker now allows the branch name to have slashes.
+
 ### New or changed features
 
+* The `ci-broker` program has been replaced with the `cib` program,
+  which is better in a few ways. Most importantly, it persists the
+  node events that need to be processed, in a queue, so that they are
+  not lost when the CI broker is re-started. The persistent storage is
+  in the form of an SQLite database file: `ci-broker` used it already,
+  but `cib` puts more information in it. There is also a list of all
+  CI runs `cib` has performed.
+
+* The `cibtool` program has been added to allow the node operator to
+  manage `cib`, via the SQLite database file. `cibtool` lets the
+  operator to view and manipulate the node event queue, and the list
+  of CI runs, and to generate HTML report pages from information in
+  the database. (`cib` generates the same report pages when running:
+  `cibtool` functionality is there just in case.)
+
 * CI broker logging continues to be inconsistent and helpful mainly to
   those developing the CI broker itself. Some logging has been
   removed, to avoid so called logspam.
@@ -32,7 +50,13 @@ This is the third release. It breaks all existing installations.
 
 * The acceptance criteria for the CI broker are now documented in more
   detail in the subplot (see `ci-broker.md` and the
-  [Subplot](https://subplot.tech/) software).
+  [Subplot](https://subplot.tech/) software). The subplot document is
+  available as
+  [HTML](https://pages.radicle.liw.fi/ci-broker/ci-broker.html).
+
+* Various undocumented helper programs have been dropped from the CI
+  broker. Their functionality, if needed, can be added to `cibtool` in
+  the future.
 
 
 ## Version 0.2.0, released 2024-06-06