Update changelog for backwards compat

diff --git a/pending_changelog/2146.txt b/pending_changelog/2146.txt
new file mode 100644 (file)
index 0000000..12e3be3
--- /dev/null
+++ b/pending_changelog/2146.txt
@@ -0,0 +1,4 @@
+## Backwards Compatibility
+
+* Routes manually constructed with `Path::blinded_tail` present will not be readable by prior versions of LDK
+* `PaymentParameters` manually constructed with `Hints::Blinded` will not be readable by prior versions of LDK