relnotes: Add note about chacha declaration fix.

diff --git a/src/relnotes/bug-chacha b/src/relnotes/bug-chacha
new file mode 100644 (file)
index 0000000..5035b5d
--- /dev/null
+++ b/src/relnotes/bug-chacha
@@ -0,0 +1,3 @@
+Bug fix: The prototype and definition of chacha_core disagreed in a
+formerly insignificant way in the microcode, causing a compiler error
+with some newer C compilers.  They have now been changed to agree.