diff --git a/bootloaders/eboot/eboot.c b/bootloaders/eboot/eboot.c
index bf8a53115..1ca64a16a 100644
--- a/bootloaders/eboot/eboot.c
+++ b/bootloaders/eboot/eboot.c
@@ -21,20 +21,20 @@ extern unsigned char _gzip_dict;
 extern void ets_wdt_enable(void);
 extern void ets_wdt_disable(void);
 
+// Converts bit of a string into a uint32
+#define S(a,b,c,d) ( (((uint32_t)a) & 0xff) | (((uint32_t)b) << 8) | (((uint32_t)c) << 16) | (((uint32_t)d)<<24) )
+
 int print_version(const uint32_t flash_addr)
 {
     uint32_t ver;
     if (SPIRead(flash_addr + APP_START_OFFSET + sizeof(image_header_t) + sizeof(section_header_t), &ver, sizeof(ver))) {
         return 1;
     }
-    char fmt[7];
-    fmt[0] = 'v';
-    fmt[1] = '%';
-    fmt[2] = '0';
-    fmt[3] = '8';
-    fmt[4] = 'x';
-    fmt[5] = '\n';
-    fmt[6] = 0;
+    // We don't have BSS and can't print from flash, so build up string
+    // 4 chars at a time.  Smaller code than byte-wise assignment.
+    uint32_t fmt[2];
+    fmt[0] = S('v', '%', '0', '8');
+    fmt[1] = S('x', '\n', 0, 0);
     ets_printf((const char*) fmt, ver);
     return 0;
 }
@@ -234,26 +234,32 @@ int main()
     }
 
     if (cmd.action == ACTION_COPY_RAW) {
-        ets_putc('c'); ets_putc('p'); ets_putc(':');
+        uint32_t cp = S('c', 'p', ':', 0);
+        ets_printf((const char *)cp);
 
         ets_wdt_disable();
         res = copy_raw(cmd.args[0], cmd.args[1], cmd.args[2], false);
         ets_wdt_enable();
 
-        ets_putc('0'+res); ets_putc('\n');
+        cp = S('0' + res, '\n', 0, 0 );
+        ets_printf((const char *)cp);
 #if 0
 	//devyte: this verify step below (cmp:) only works when the end of copy operation above does not overwrite the 
 	//beginning of the image in the empty area, see #7458. Disabling for now. 
         //TODO: replace the below verify with hash type, crc, or similar.
         // Verify the copy
-        ets_putc('c'); ets_putc('m'); ets_putc('p'); ets_putc(':');
+        uint32_t v[2];
+        v[0] = S('c', 'm', 'p', ':');
+        v[1] = 0;
+        ets_printf(const char *)v);
         if (res == 0) {
             ets_wdt_disable();
             res = copy_raw(cmd.args[0], cmd.args[1], cmd.args[2], true);
             ets_wdt_enable();
             }
 
-        ets_putc('0'+res); ets_putc('\n');
+        cp = S('0' + res, '\n', 0, 0 );
+        ets_printf((const char *)cp);
 #endif	    
         if (res == 0) {
             cmd.action = ACTION_LOAD_APP;
@@ -268,8 +274,11 @@ int main()
     if (cmd.action == ACTION_LOAD_APP) {
         ets_putc('l'); ets_putc('d'); ets_putc('\n');
         res = load_app_from_flash_raw(cmd.args[0]);
-        //we will get to this only on load fail
-        ets_putc('e'); ets_putc(':'); ets_putc('0'+res); ets_putc('\n');
+        // We will get to this only on load fail
+        uint32_t e[2];
+        e[0] = S('e', ':', '0' + res, '\n' );
+        e[1] = 0;
+        ets_printf((const char*)e);
     }
 
     if (res) {
diff --git a/bootloaders/eboot/eboot.elf b/bootloaders/eboot/eboot.elf
index 48b354389..e7e1fc543 100755
Binary files a/bootloaders/eboot/eboot.elf and b/bootloaders/eboot/eboot.elf differ
diff --git a/cores/esp8266/Schedule.cpp b/cores/esp8266/Schedule.cpp
index 9cb86c8d1..5ac887ce1 100644
--- a/cores/esp8266/Schedule.cpp
+++ b/cores/esp8266/Schedule.cpp
@@ -1,3 +1,20 @@
+/*
+ Schedule.cpp - Scheduled functions.
+ Copyright (c) 2020 esp8266/Arduino
+ 
+ This file is part of the esp8266 core for Arduino environment.
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
 
 #include <assert.h>
 
diff --git a/cores/esp8266/Schedule.h b/cores/esp8266/Schedule.h
index 48111c33e..da86e5b7f 100644
--- a/cores/esp8266/Schedule.h
+++ b/cores/esp8266/Schedule.h
@@ -1,3 +1,21 @@
+/*
+ Schedule.h - Header file for scheduled functions.
+ Copyright (c) 2020 esp8266/Arduino
+ 
+ This file is part of the esp8266 core for Arduino environment.
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
 #ifndef ESP_SCHEDULE_H
 #define ESP_SCHEDULE_H
 
diff --git a/libraries/EEPROM/EEPROM.cpp b/libraries/EEPROM/EEPROM.cpp
index 0ea72ceca..90bc5d178 100644
--- a/libraries/EEPROM/EEPROM.cpp
+++ b/libraries/EEPROM/EEPROM.cpp
@@ -72,17 +72,22 @@ void EEPROMClass::begin(size_t size) {
   _dirty = false; //make sure dirty is cleared in case begin() is called 2nd+ time
 }
 
-void EEPROMClass::end() {
-  if (!_size)
-    return;
+bool EEPROMClass::end() {
+  bool retval;
 
-  commit();
+  if(!_size) {
+    return false;
+  }
+
+  retval = commit();
   if(_data) {
     delete[] _data;
   }
   _data = 0;
   _size = 0;
   _dirty = false;
+
+  return retval;
 }
 
 
diff --git a/libraries/EEPROM/EEPROM.h b/libraries/EEPROM/EEPROM.h
index e1d804425..18774c465 100644
--- a/libraries/EEPROM/EEPROM.h
+++ b/libraries/EEPROM/EEPROM.h
@@ -35,7 +35,7 @@ public:
   uint8_t read(int const address);
   void write(int const address, uint8_t const val);
   bool commit();
-  void end();
+  bool end();
 
   uint8_t * getDataPtr();
   uint8_t const * getConstDataPtr() const;
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp b/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp
index 1df25be3e..fb23b35e8 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp
@@ -254,7 +254,7 @@ void ESP8266WiFiGenericClass::_eventCallback(void* arg)
  * Return the current channel associated with the network
  * @return channel (1-13)
  */
-int32_t ESP8266WiFiGenericClass::channel(void) {
+uint8_t ESP8266WiFiGenericClass::channel(void) {
     return wifi_get_channel();
 }
 
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.h b/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.h
index b5f307aed..815c26b6d 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.h
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.h
@@ -74,7 +74,7 @@ class ESP8266WiFiGenericClass {
         WiFiEventHandler onSoftAPModeProbeRequestReceived(std::function<void(const WiFiEventSoftAPModeProbeRequestReceived&)>);
         WiFiEventHandler onWiFiModeChange(std::function<void(const WiFiEventModeChange&)>);
 
-        int32_t channel(void);
+        uint8_t channel(void);
 
         bool setSleepMode(WiFiSleepType_t type, uint8_t listenInterval = 0);
 
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp
index 65f0ea35a..0959bba7c 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp
@@ -686,7 +686,7 @@ String ESP8266WiFiSTAClass::BSSIDstr(void) {
  * Return the current network RSSI.
  * @return  RSSI value
  */
-int32_t ESP8266WiFiSTAClass::RSSI(void) {
+int8_t ESP8266WiFiSTAClass::RSSI(void) {
     return wifi_station_get_rssi();
 }
 
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h
index cf38e1254..d845b290c 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h
@@ -81,7 +81,7 @@ class ESP8266WiFiSTAClass {
         uint8_t * BSSID();
         String BSSIDstr();
 
-        int32_t RSSI();
+        int8_t RSSI();
 
         static void enableInsecureWEP (bool enable = true) { _useInsecureWEP = enable; }
 
diff --git a/libraries/Netdump/library.properties b/libraries/Netdump/library.properties
index 2f6ad5e22..bc23b9cee 100644
--- a/libraries/Netdump/library.properties
+++ b/libraries/Netdump/library.properties
@@ -6,4 +6,4 @@ sentence=tcpdump-like logger for esp8266/Arduino
 paragraph=Dumps input / output packets on "Print"able type, or provide a TCP server for the real tcpdump. Check examples. Some other unrelated and independant tools are included.
 category=Communication
 url=https://
-architectures=esp8266 lwip
+architectures=esp8266