diff --git a/debian/changelog b/debian/changelog
index b3b0447..d472efd 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+rpi-eeprom (12.12-1) buster; urgency=medium
+
+  [ Tim Gover ]
+  * pieeprom-2021-09-23.bin:  Bootloader file-system updates - BETA
+
+ -- Serge Schneider <serge@raspberrypi.com>  Fri, 24 Sep 2021 15:30:58 +0100
+
 rpi-eeprom (12.11-1) buster; urgency=medium
 
   [ Tim Gover ]
diff --git a/firmware/beta/pieeprom-2021-09-23.bin b/firmware/beta/pieeprom-2021-09-23.bin
new file mode 100644
index 0000000..6f2b2b2
Binary files /dev/null and b/firmware/beta/pieeprom-2021-09-23.bin differ
diff --git a/firmware/beta/recovery.bin b/firmware/beta/recovery.bin
index 8ed379e..61cd306 100644
Binary files a/firmware/beta/recovery.bin and b/firmware/beta/recovery.bin differ
diff --git a/firmware/release-notes.md b/firmware/release-notes.md
index 897003c..66746ef 100644
--- a/firmware/release-notes.md
+++ b/firmware/release-notes.md
@@ -3,6 +3,18 @@
 USB MSD boot also requires the firmware from Raspberry Pi OS 2020-08-20 or newer.
 https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711_bootloader_config.md
 
+## 2021-09-23 - Bootloader file-system updates - BETA
+This release makes major changes to the bootloader file-system code in order
+to support new features and should be treated as a bleeding edge BETA release!
+  * Improve file-system performance to reduce boot time.
+  * Preliminary support for IPV6 TFTP. Requires an updated start4.elf.
+    Details to follow.
+  * Fix VL805=1 option for CM4 IO boards that follow the same XHCI
+    design as Pi4B. Start.elf will be updated in the next rpi-update release
+    and the latest CM4 DTBs are required for the 'XHCI reset controller'
+  * Preliminary support for loading signed boot image files.
+    Requires updated GPU firmware.
+
 ## 2021-09-22 - Update recovery.bin to fix issue with large FAT partitions - STABLE
   * Bump the latest recovery.bin under beta to stable.