6 files changed, 6 insertions, 0 deletions

diff --git a/changelog.d/15233.misc b/changelog.d/15233.misc
new file mode 100644
index 0000000000..1dff00bf3c
--- /dev/null
+++ b/changelog.d/15233.misc
@@ -0,0 +1 @@
+Replace `EventContext` fields `prev_group` and `delta_ids` with field `state_group_deltas`.
diff --git a/changelog.d/15737.feature b/changelog.d/15737.feature
new file mode 100644
index 0000000000..9a547b5ebd
--- /dev/null
+++ b/changelog.d/15737.feature
@@ -0,0 +1 @@
+Improve `/messages` response time by avoiding backfill when we already have messages to return.
diff --git a/changelog.d/15755.misc b/changelog.d/15755.misc
new file mode 100644
index 0000000000..a65340d380
--- /dev/null
+++ b/changelog.d/15755.misc
@@ -0,0 +1 @@
+Fix requesting multiple keys at once over federation, related to [MSC3983](https://github.com/matrix-org/matrix-spec-proposals/pull/3983).
diff --git a/changelog.d/15758.bugfix b/changelog.d/15758.bugfix
new file mode 100644
index 0000000000..cabe25ca24
--- /dev/null
+++ b/changelog.d/15758.bugfix
@@ -0,0 +1 @@
+Avoid invalidating a cache that was just prefilled.
diff --git a/changelog.d/15770.bugfix b/changelog.d/15770.bugfix
new file mode 100644
index 0000000000..a65340d380
--- /dev/null
+++ b/changelog.d/15770.bugfix
@@ -0,0 +1 @@
+Fix requesting multiple keys at once over federation, related to [MSC3983](https://github.com/matrix-org/matrix-spec-proposals/pull/3983).
diff --git a/changelog.d/15772.doc b/changelog.d/15772.doc
new file mode 100644
index 0000000000..4d6c933c71
--- /dev/null
+++ b/changelog.d/15772.doc
@@ -0,0 +1 @@
+Document `looping_call()` functionality that will wait for the given function to finish before scheduling another.