release 3.0.0 (#8034)

Author: d-a-v

cores/esp8266/TZ.h

@@ -1,7 +1,7 @@
 
 // autogenerated from https://raw.githubusercontent.com/nayarsystems/posix_tz_db/master/zones.csv
 // by script <esp8266 arduino core>/tools/TZupdate.sh
-// Thu Nov 12 04:07:03 UTC 2020
+// Sat May 15 23:55:44 UTC 2021
 //
 // This database is autogenerated from IANA timezone database
 //    https://raw.githubusercontent.com/nayarsystems/posix_tz_db/master/zones.csv
@@ -172,6 +172,7 @@
 #define TZ_America_North_Dakota_Beulah	PSTR("CST6CDT,M3.2.0,M11.1.0")
 #define TZ_America_North_Dakota_Center	PSTR("CST6CDT,M3.2.0,M11.1.0")
 #define TZ_America_North_Dakota_New_Salem	PSTR("CST6CDT,M3.2.0,M11.1.0")
+#define TZ_America_Nuuk	PSTR("<-03>3<-02>,M3.5.0/-2,M10.5.0/-1")
 #define TZ_America_Ojinaga	PSTR("MST7MDT,M3.2.0,M11.1.0")
 #define TZ_America_Panama	PSTR("EST5")
 #define TZ_America_Pangnirtung	PSTR("EST5EDT,M3.2.0,M11.1.0")
@@ -383,7 +384,7 @@
 #define TZ_Europe_Vatican	PSTR("CET-1CEST,M3.5.0,M10.5.0/3")
 #define TZ_Europe_Vienna	PSTR("CET-1CEST,M3.5.0,M10.5.0/3")
 #define TZ_Europe_Vilnius	PSTR("EET-2EEST,M3.5.0/3,M10.5.0/4")
-#define TZ_Europe_Volgograd	PSTR("<+04>-4")
+#define TZ_Europe_Volgograd	PSTR("<+03>-3")
 #define TZ_Europe_Warsaw	PSTR("CET-1CEST,M3.5.0,M10.5.0/3")
 #define TZ_Europe_Zagreb	PSTR("CET-1CEST,M3.5.0,M10.5.0/3")
 #define TZ_Europe_Zaporozhye	PSTR("EET-2EEST,M3.5.0/3,M10.5.0/4")

package.json

@@ -2,5 +2,5 @@
     "name": "framework-arduinoespressif8266",
     "description": "Arduino Wiring-based Framework (ESP8266 Core)",
     "url": "https://github.com/esp8266/Arduino",
-    "version": "3.0.0-dev"
+    "version": "3.0.0"
 }

platform.txt

@@ -5,8 +5,8 @@
 # For more info:
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5-3rd-party-Hardware-specification
 
-name=ESP8266 Boards (3.0.0-dev)
-version=3.0.0-dev
+name=ESP8266 Boards (3.0.0)
+version=3.0.0
 
 # These will be removed by the packager script when doing a JSON release
 runtime.tools.xtensa-lx106-elf-gcc.path={runtime.platform.path}/tools/xtensa-lx106-elf