diff --git a/security/hardened_malloc.adoc b/security/hardened_malloc.adoc
index 548459f..c7905a3 100644
--- a/security/hardened_malloc.adoc
+++ b/security/hardened_malloc.adoc
@@ -1,6 +1,6 @@
 = GrapheneOS hardened_malloc
 
-Version: 0.1.0.9
+Version: 0.1.0.10
 
 
 This documentation contains instructions to use
@@ -29,10 +29,15 @@ of guard pages.
 `$ make <arguments>`
 
 `CONFIG_N_ARENA=n` can be adjusted to increase parallel performance at the expense of memory usage,
-or decrease memory usage at the expense of parallel performance, where `n` is an integer; higher
-values prefer parallel performance, lower values prefer lower memory usage. For low-memory systems,
-`VARIANT=light` can be used to compile the light variant of hardened_malloc, which sacrifices some
-security for much less memory usage.
+or decrease memory usage at the expense of parallel performance, where `n` is an integer. Higher
+values prefer parallel performance, lower values prefer lower memory usage. The number of arenas has
+no impact on the security properties of hardened_malloc.
+
+* Minimum number of arenas: 1
+* Maximum number of arenas: 256
+
+For low-memory systems, `VARIANT=light` can be used to compile the light variant of hardened_malloc,
+which sacrifices some security for much less memory usage.
 
 == Copy Compiled hardened_malloc Library