diff --git a/changelog.d/3498.bugfix b/changelog.d/3498.bugfix
new file mode 100644
index 0000000000000000000000000000000000000000..d0d01101f30ce2a36f27821c95f0a8f14dab1dde
--- /dev/null
+++ b/changelog.d/3498.bugfix
@@ -0,0 +1 @@
+Use more portable syntax in our use of the attrs package, widening the supported versions
diff --git a/changelog.d/3498.misc b/changelog.d/3498.misc
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/changelog.d/3501.feature b/changelog.d/3501.feature
new file mode 100644
index 0000000000000000000000000000000000000000..6a06a7e75560da27d44f3c48be15c9515d378ef2
--- /dev/null
+++ b/changelog.d/3501.feature
@@ -0,0 +1 @@
+Include CPU time from database threads in request/block metrics.
diff --git a/changelog.d/3501.misc b/changelog.d/3501.misc
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/changelog.d/3505.feature b/changelog.d/3505.feature
index ca1867f5291325635aa5c8656da2bbc8ea304ef8..a6b686f68decaa352e7584d1c3607a093f35c40c 100644
--- a/changelog.d/3505.feature
+++ b/changelog.d/3505.feature
@@ -1 +1 @@
-Reduce database consumption when processing large numbers of receipts
+optimisation for /sync
diff --git a/changelog.d/3521.feature b/changelog.d/3521.feature
index 6dced5f2ae8823a9442d1632fe9588da3e5974de..a6b686f68decaa352e7584d1c3607a093f35c40c 100644
--- a/changelog.d/3521.feature
+++ b/changelog.d/3521.feature
@@ -1 +1 @@
-Cache optimisation for /sync requests
\ No newline at end of file
+optimisation for /sync