doc: document new baseline requires memfd_create()

diff --git a/README b/README
index c6cc8f2b8f591d710c6b0a799a2380e8b85b73e0..a0818bff2b661d4e650b60d1615e78cfc2c2466e 100644 (file)
--- a/README
+++ b/README
@@ -43,7 +43,7 @@ REQUIREMENTS:
 
         ⛔ Kernel versions below 4.3 ("minimum baseline") are not supported at
         all, and are missing required functionality (e.g. CLOCK_BOOTTIME
-        support for timerfd_create() or ambient capabilities).
+        support for timerfd_create(), ambient capabilities, or memfd_create()).
 
         ⚠️ Kernel versions below 5.4 ("recommended baseline") have significant
         gaps in functionality and are not recommended for use with this version