1 files changed, 2 insertions, 0 deletions
diff --git a/UPGRADING b/UPGRADING
index 0621d8eade..e38f0307c0 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -403,6 +403,8 @@ PHP 8.0 UPGRADE NOTES
   . The openssl_pkey_free() function is deprecated and no longer has an effect,
     instead the OpenSSLAsymmetricKey instance is automatically destroyed if it is no
     longer referenced.
+  . openssl_seal() and openssl_open() now require $method to be passed, as the
+    previous default of "RC4" is considered insecure.
 
 - PCRE:
   . When passing invalid escape sequences they are no longer interpreted as