diff --git a/roles/pbx/README.rst b/roles/pbx/README.rst
index 22d83d4d6..82d7c74a7 100644
--- a/roles/pbx/README.rst
+++ b/roles/pbx/README.rst
@@ -4,7 +4,11 @@ PBX README
 
 This 'pbx' playbook adds `Asterisk <https://asterisk.org/>`_ and `FreePBX <https://freepbx.org/>`_ to Internet-in-a-Box (IIAB) for VoIP and SIP functionality e.g. for rural telephony.
 
-This initial release (for IIAB 6.7 in February 2019) supports Ubuntu 18.04, Debian 9 "Stretch" — and experimentally supports Raspberry Pi: `#1467 <https://github.com/iiab/iiab/issues/1467>`_
+The initial release (for IIAB 6.7 in February 2019) supported Ubuntu 18.04, Debian 9 "Stretch" — and experimentally supported Raspberry Pi: `#1467 <https://github.com/iiab/iiab/issues/1467>`_
+
+*2021-08-02 GOOD NEWS: IIAB has upgraded from Asterisk 16.x to 18.x* (`docs <https://wiki.asterisk.org/wiki/display/AST/Asterisk+18+Documentation>`_).
+
+*2021-08-02 BAD NEWS: The latest versions of Ubuntu (20.04, 20.10, 21.04), Debian 11 "Bullseye" and the imminent Raspberry Pi OS 11 "Bullseye" all include PHP 7.4 — which does not work with FreePBX 15 — so we could use some help looking into 2021-06-21's FreePBX 16.0 Beta:* `#2897 <https://github.com/iiab/iiab/issues/2897#issuecomment-891371536>`_
 
 What Asterisk & FreePBX Do
 --------------------------
@@ -34,7 +38,7 @@ You can monitor the FreePBX service with command::
 Raspberry Pi Known Issue
 ------------------------
 
-As of 2019-02-14, "systemctl restart freepbx" fails more than 50% of the time when run on a `BIG-sized <http://wiki.laptop.org/go/IIAB/FAQ#What_services_.28IIAB_apps.29_are_suggested_during_installation.3F>`_ install of IIAB 6.7 on RPi 3 or RPi 3 B+.
+As of 2019-02-14, "systemctl restart freepbx" failed more than 50% of the time when run on a `BIG-sized <http://wiki.laptop.org/go/IIAB/FAQ#What_services_.28IIAB_apps.29_are_suggested_during_installation.3F>`_ install of IIAB 6.7 on RPi 3 or RPi 3 B+.
 
 It is possible that FreePBX restarts much more reliably when run on a MIN-sized install of IIAB?  Please `contact us <http://wiki.laptop.org/go/IIAB/FAQ#What_are_the_best_places_for_community_support.3F>`_ if you can assist here in any way: `#1493 <https://github.com/iiab/iiab/issues/1493>`_