diff --git a/CHANGES b/CHANGES
index cd7e75e7c0..ba153bc6ce 100644
--- a/CHANGES
+++ b/CHANGES
@@ -12,6 +12,11 @@
 --- Functionality changes from Asterisk 15 to Asterisk 16 --------------------
 ------------------------------------------------------------------------------
 
+app_fax
+------------------
+ * The app_fax module is now deprecated, users should migrate to the
+   replacement module res_fax.
+
 app_macro
 ------------------
  * The app_macro module is now deprecated and by default it is no longer
@@ -43,6 +48,16 @@ app_queue
    When set the wrapuptime on the member is used instead of the wrapuptime
    defined for the queue itself.
 
+res_config_sqlite
+------------------
+ * The res_config_sqlite module is now deprecated, users should migrate to the
+   replacement module res_config_sqlite3.
+
+res_monitor
+------------------
+ * The res_monitor module is now deprecated, users should migrate to the
+   replacement module app_mixmonitor.
+
 res_pjsip
 ------------------
  * A new AMI action, PJSIPShowAors, has been added which displays information
diff --git a/UPGRADE.txt b/UPGRADE.txt
index d398e5fea3..3668258638 100644
--- a/UPGRADE.txt
+++ b/UPGRADE.txt
@@ -26,6 +26,10 @@
 
 New in 16.0.0:
 
+app_fax:
+ - The app_fax module is now deprecated, users should migrate to the
+   replacement module res_fax.
+
 app_macro:
  - The app_macro module is now deprecated and by default it is no longer
    built.  Users should migrate to app_stack (Gosub).  A warning is logged
@@ -44,6 +48,14 @@ cdr_syslog:
  - The cdr_syslog module is now deprecated and by default it is no longer
    built.
 
+res_config_sqlite:
+ - The res_config_sqlite module is now deprecated, users should migrate to the
+   replacement module res_config_sqlite3.
+
+res_monitor:
+ - The res_monitor module is now deprecated, users should migrate to the
+   replacement module app_mixmonitor.
+
 Core:
  - libedit is no longer available as an embedded library and must be provided
    by the system.
diff --git a/apps/app_fax.c b/apps/app_fax.c
index 540e8e35c8..293925ac19 100644
--- a/apps/app_fax.c
+++ b/apps/app_fax.c
@@ -16,7 +16,8 @@
 	<defaultenabled>no</defaultenabled>
 	<depend>spandsp</depend>
 	<conflict>res_fax</conflict>
-	<support_level>extended</support_level>
+	<support_level>deprecated</support_level>
+	<replacement>res_fax</replacement>
 ***/
 
 #include "asterisk.h"
diff --git a/res/res_config_sqlite.c b/res/res_config_sqlite.c
index 5ca623ccc0..83d2dca720 100644
--- a/res/res_config_sqlite.c
+++ b/res/res_config_sqlite.c
@@ -82,7 +82,7 @@
 
 /*** MODULEINFO
 	<depend>sqlite</depend>
-	<support_level>extended</support_level>
+	<support_level>deprecated</support_level>
  ***/
 
 #include "asterisk.h"
diff --git a/res/res_monitor.c b/res/res_monitor.c
index a8631dcb7f..95acf554db 100644
--- a/res/res_monitor.c
+++ b/res/res_monitor.c
@@ -25,7 +25,8 @@
 
 /*** MODULEINFO
 	<use type="module">func_periodic_hook</use>
-	<support_level>core</support_level>
+	<support_level>deprecated</support_level>
+	<replacement>app_mixmonitor</replacement>
  ***/
 
 #include "asterisk.h"