diff --git a/exwm-input.el b/exwm-input.el
index bb97adc..5767f13 100644
--- a/exwm-input.el
+++ b/exwm-input.el
@@ -984,11 +984,6 @@ multiple keys.  If END-KEY is non-nil, stop sending keys if it's pressed."
                    #'exwm-input-send-simulation-key))))
            exwm-input--simulation-keys))
 
-(defun exwm-input-set-simulation-keys (simulation-keys)
-  "Please customize or set `exwm-input-simulation-keys' instead."
-  (declare (obsolete nil "26"))
-  (exwm-input--set-simulation-keys simulation-keys))
-
 (defcustom exwm-input-simulation-keys nil
   "Simulation keys.
 
diff --git a/exwm-randr.el b/exwm-randr.el
index abfa84f..e98074f 100644
--- a/exwm-randr.el
+++ b/exwm-randr.el
@@ -91,10 +91,6 @@ corresponding monitors whenever the monitors are active.
   \\='(1 \"HDMI-1\" 3 \"DP-1\")"
   :type '(plist :key-type integer :value-type string))
 
-(with-no-warnings
-  (define-obsolete-variable-alias 'exwm-randr-workspace-output-plist
-    'exwm-randr-workspace-monitor-plist "27.1"))
-
 (defvar exwm-randr--last-timestamp 0 "Used for debouncing events.")
 
 (defvar exwm-randr--prev-screen-change-seqnum nil
@@ -269,9 +265,6 @@ In a mirroring setup some monitors overlap and should be treated as one."
       (xcb:flush exwm--connection)
       (run-hooks 'exwm-randr-refresh-hook))))
 
-(define-obsolete-function-alias 'exwm-randr--refresh #'exwm-randr-refresh
-  "27.1")
-
 (defun exwm-randr--on-ScreenChangeNotify (data _synthetic)
   "Handle `ScreenChangeNotify' event.