diff --git a/changelog.d/8504.bugfix b/changelog.d/8504.bugfix
new file mode 100644
index 0000000000..2bd0dbb8b4
--- /dev/null
+++ b/changelog.d/8504.bugfix
@@ -0,0 +1 @@
+Expose the `uk.half-shot.msc2778.login.application_service` to clients from the login API. This feature was added in v1.21.0, but was not exposed as a potential login flow.
diff --git a/changelog.d/8545.bugfix b/changelog.d/8545.bugfix
new file mode 100644
index 0000000000..64ba307df0
--- /dev/null
+++ b/changelog.d/8545.bugfix
@@ -0,0 +1 @@
+Fix a long standing bug where email notifications for encrypted messages were blank.
diff --git a/changelog.d/8567.bugfix b/changelog.d/8567.bugfix
new file mode 100644
index 0000000000..4d835df6fd
--- /dev/null
+++ b/changelog.d/8567.bugfix
@@ -0,0 +1 @@
+Fix increase in the number of `There was no active span...` errors logged when using OpenTracing.
diff --git a/changelog.d/8568.misc b/changelog.d/8568.misc
new file mode 100644
index 0000000000..0ed7db92d3
--- /dev/null
+++ b/changelog.d/8568.misc
@@ -0,0 +1 @@
+Add `get_immediate` method to `DeferredCache`.
diff --git a/changelog.d/8569.misc b/changelog.d/8569.misc
new file mode 100644
index 0000000000..3b6e0625e5
--- /dev/null
+++ b/changelog.d/8569.misc
@@ -0,0 +1 @@
+Fix mypy not properly checking across the codebase, additionally, fix a typing assertion error in `handlers/auth.py`.
\ No newline at end of file
diff --git a/changelog.d/8578.misc b/changelog.d/8578.misc
new file mode 100644
index 0000000000..e93462255b
--- /dev/null
+++ b/changelog.d/8578.misc
@@ -0,0 +1 @@
+Support macOS on the `synmark` benchmark runner.
diff --git a/changelog.d/8583.misc b/changelog.d/8583.misc
new file mode 100644
index 0000000000..d24973f09a
--- /dev/null
+++ b/changelog.d/8583.misc
@@ -0,0 +1 @@
+Update `mypy` static type checker to 0.790.
\ No newline at end of file
diff --git a/changelog.d/8585.bugfix b/changelog.d/8585.bugfix
new file mode 100644
index 0000000000..e97e6ac1d8
--- /dev/null
+++ b/changelog.d/8585.bugfix
@@ -0,0 +1 @@
+Fix a bug that prevented errors encountered during execution of the `synapse_port_db` from being correctly printed.
\ No newline at end of file
diff --git a/changelog.d/8589.removal b/changelog.d/8589.removal
new file mode 100644
index 0000000000..b80f29d6bb
--- /dev/null
+++ b/changelog.d/8589.removal
@@ -0,0 +1 @@
+Drop unused `device_max_stream_id` table.
diff --git a/changelog.d/8590.misc b/changelog.d/8590.misc
new file mode 100644
index 0000000000..4abcccb326
--- /dev/null
+++ b/changelog.d/8590.misc
@@ -0,0 +1 @@
+Implement [MSC2409](https://github.com/matrix-org/matrix-doc/pull/2409) to send typing, read receipts, and presence events to appservices.
diff --git a/changelog.d/8591.misc b/changelog.d/8591.misc
new file mode 100644
index 0000000000..8f16bc3e7e
--- /dev/null
+++ b/changelog.d/8591.misc
@@ -0,0 +1 @@
+ Move metric registration code down into `LruCache`.
diff --git a/changelog.d/8592.misc b/changelog.d/8592.misc
new file mode 100644
index 0000000000..099e8fb7bb
--- /dev/null
+++ b/changelog.d/8592.misc
@@ -0,0 +1 @@
+Remove extraneous unittest logging decorators from unit tests.
\ No newline at end of file
diff --git a/changelog.d/8599.feature b/changelog.d/8599.feature
new file mode 100644
index 0000000000..542993110b
--- /dev/null
+++ b/changelog.d/8599.feature
@@ -0,0 +1 @@
+Allow running background tasks in a separate worker process.
diff --git a/changelog.d/8609.misc b/changelog.d/8609.misc
new file mode 100644
index 0000000000..5e3f3c1993
--- /dev/null
+++ b/changelog.d/8609.misc
@@ -0,0 +1 @@
+Add type hints to profile and base handler.
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