Added changelog.

Signed-off-by: Matthias Schulz <mschulz@hilscher.com>
diff --git a/ChangeLog.d/fix-csr-parsing-with-critical-fields-fails.txt b/ChangeLog.d/fix-csr-parsing-with-critical-fields-fails.txt
new file mode 100644
index 0000000..5b15512
--- /dev/null
+++ b/ChangeLog.d/fix-csr-parsing-with-critical-fields-fails.txt
@@ -0,0 +1,6 @@
+Features
+   * Add new mbedtls_x509_csr_parse_der_with_ext_cb() routine which allows
+     parsing unsupported certificate extensions via user provided callback.
+
+Bugfix
+   * Fix parsing of CSRs with critical extensions.