diff --git a/esphome/components/ili9xxx/ili9xxx_display.cpp b/esphome/components/ili9xxx/ili9xxx_display.cpp
index 21d46ea825..de03df5d41 100644
--- a/esphome/components/ili9xxx/ili9xxx_display.cpp
+++ b/esphome/components/ili9xxx/ili9xxx_display.cpp
@@ -34,8 +34,8 @@ void ILI9XXXDisplay::setup() {
   ESP_LOGD(TAG, "Setting up ILI9xxx");
 
   this->setup_pins_();
-  this->init_lcd_(this->init_sequence_);
-  this->init_lcd_(this->extra_init_sequence_.data());
+  this->init_lcd(this->init_sequence_);
+  this->init_lcd(this->extra_init_sequence_.data());
   switch (this->pixel_mode_) {
     case PIXEL_MODE_16:
       if (this->is_18bitdisplay_) {
@@ -405,7 +405,7 @@ void ILI9XXXDisplay::reset_() {
   }
 }
 
-void ILI9XXXDisplay::init_lcd_(const uint8_t *addr) {
+void ILI9XXXDisplay::init_lcd(const uint8_t *addr) {
   if (addr == nullptr)
     return;
   uint8_t cmd, x, num_args;
@@ -427,6 +427,20 @@ void ILI9XXXDisplay::init_lcd_(const uint8_t *addr) {
   }
 }
 
+void ILI9XXXGC9A01A::init_lcd(const uint8_t *addr) {
+  if (addr == nullptr)
+    return;
+  uint8_t cmd, x, num_args;
+  while ((cmd = *addr++) != 0) {
+    x = *addr++;
+    num_args = x & 0x7F;
+    this->send_command(cmd, addr, num_args);
+    addr += num_args;
+    if (x & 0x80)
+      delay(150);  // NOLINT
+  }
+}
+
 // Tell the display controller where we want to draw pixels.
 void ILI9XXXDisplay::set_addr_window_(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2) {
   x1 += this->offset_x_;
diff --git a/esphome/components/ili9xxx/ili9xxx_display.h b/esphome/components/ili9xxx/ili9xxx_display.h
index 7a320dac7b..b60047a8c3 100644
--- a/esphome/components/ili9xxx/ili9xxx_display.h
+++ b/esphome/components/ili9xxx/ili9xxx_display.h
@@ -109,7 +109,7 @@ class ILI9XXXDisplay : public display::DisplayBuffer,
 
   virtual void set_madctl();
   void display_();
-  void init_lcd_(const uint8_t *addr);
+  virtual void init_lcd(const uint8_t *addr);
   void set_addr_window_(uint16_t x, uint16_t y, uint16_t x2, uint16_t y2);
   void reset_();
 
@@ -269,6 +269,7 @@ class ILI9XXXS3BoxLite : public ILI9XXXDisplay {
 class ILI9XXXGC9A01A : public ILI9XXXDisplay {
  public:
   ILI9XXXGC9A01A() : ILI9XXXDisplay(INITCMD_GC9A01A, 240, 240, true) {}
+  void init_lcd(const uint8_t *addr) override;
 };
 
 //-----------   ILI9XXX_24_TFT display --------------
diff --git a/esphome/components/mqtt/mqtt_datetime.cpp b/esphome/components/mqtt/mqtt_datetime.cpp
index 4fa44aafb8..4ae6d0d416 100644
--- a/esphome/components/mqtt/mqtt_datetime.cpp
+++ b/esphome/components/mqtt/mqtt_datetime.cpp
@@ -6,12 +6,12 @@
 #include "mqtt_const.h"
 
 #ifdef USE_MQTT
-#ifdef USE_DATETIME_TIME
+#ifdef USE_DATETIME_DATETIME
 
 namespace esphome {
 namespace mqtt {
 
-static const char *const TAG = "mqtt.datetime.time";
+static const char *const TAG = "mqtt.datetime.datetime";
 
 using namespace esphome::datetime;
 
@@ -80,5 +80,5 @@ bool MQTTDateTimeComponent::publish_state(uint16_t year, uint8_t month, uint8_t
 }  // namespace mqtt
 }  // namespace esphome
 
-#endif  // USE_DATETIME_TIME
+#endif  // USE_DATETIME_DATETIME
 #endif  // USE_MQTT
diff --git a/esphome/components/mqtt/mqtt_datetime.h b/esphome/components/mqtt/mqtt_datetime.h
index f0d68ad2e1..ba81c06cb3 100644
--- a/esphome/components/mqtt/mqtt_datetime.h
+++ b/esphome/components/mqtt/mqtt_datetime.h
@@ -3,7 +3,7 @@
 #include "esphome/core/defines.h"
 
 #ifdef USE_MQTT
-#ifdef USE_DATETIME_TIME
+#ifdef USE_DATETIME_DATETIME
 
 #include "esphome/components/datetime/datetime_entity.h"
 #include "mqtt_component.h"
@@ -17,7 +17,7 @@ class MQTTDateTimeComponent : public mqtt::MQTTComponent {
    *
    * @param time The time entity.
    */
-  explicit MQTTDateTimeComponent(datetime::DateTimeEntity *time);
+  explicit MQTTDateTimeComponent(datetime::DateTimeEntity *datetime);
 
   // ========== INTERNAL METHODS ==========
   // (In most use cases you won't need these)
@@ -41,5 +41,5 @@ class MQTTDateTimeComponent : public mqtt::MQTTComponent {
 }  // namespace mqtt
 }  // namespace esphome
 
-#endif  // USE_DATETIME_DATE
+#endif  // USE_DATETIME_DATETIME
 #endif  // USE_MQTT
diff --git a/esphome/components/update/__init__.py b/esphome/components/update/__init__.py
index ae3d5062ab..ea1cf778b6 100644
--- a/esphome/components/update/__init__.py
+++ b/esphome/components/update/__init__.py
@@ -7,6 +7,7 @@ from esphome.const import (
     CONF_ID,
     CONF_MQTT_ID,
     CONF_WEB_SERVER_ID,
+    DEVICE_CLASS_EMPTY,
     DEVICE_CLASS_FIRMWARE,
 )
 from esphome.core import CORE, coroutine_with_priority
@@ -24,6 +25,7 @@ PerformAction = update_ns.class_("PerformAction", automation.Action)
 IsAvailableCondition = update_ns.class_("IsAvailableCondition", automation.Condition)
 
 DEVICE_CLASSES = [
+    DEVICE_CLASS_EMPTY,
     DEVICE_CLASS_FIRMWARE,
 ]
 
diff --git a/esphome/const.py b/esphome/const.py
index e2dc5c259a..a0fe325282 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -1,6 +1,6 @@
 """Constants used by esphome."""
 
-__version__ = "2024.6.0b2"
+__version__ = "2024.6.0b3"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (