diff --git a/README.md b/README.md
index 0926095..919d2ee 100644
--- a/README.md
+++ b/README.md
@@ -204,6 +204,8 @@ v2.2, IN PROGRESS
   ([#452](https://github.com/rfjakob/gocryptfs/issues/452)).
    * New feature flag! You need gocryptfs v2.2 or higher to mount a filesystem that uses this flag.
    * Test with `gocryptfs -speed` what is fastest for your CPU, or read [here](https://github.com/rfjakob/gocryptfs/issues/452#issuecomment-908559414)
+* Rewrite [OpenSSL backend](https://pkg.go.dev/github.com/rfjakob/gocryptfs/v2@master/internal/stupidgcm)
+  for better performance on AES-GCM-256-OpenSSL and XChaCha20-Poly1305-OpenSSL
 * `-serialize_reads`: get rid of delay logic by taking advantage of the kernel flag
   `FUSE_CAP_ASYNC_READ`
   ([go-fuse commit](https://github.com/hanwen/go-fuse/commit/15a8bb029a4e1a51e10043c370970596b1fbb737),