Add missing changelog entries

CHANGES

@@ -2,9 +2,17 @@
 	all : deprecated neko (see README)
 	std : fixed put_env when null is passed in (#229 https://github.com/HaxeFoundation/haxe/issues/10395)
 	std : added sys_cpu_arch (#275)
-	std : fix sys_is64 returning false on 64 bit Windows (#276)
+	std : fixed sys_is64 returning false on 64 bit Windows (#276)
+	std : fixed $int to respect whitespace and signs in hex notation and to ignore trailing text (#258)
 	all : fixed various build issues on macOS Catalina and Big Sur
 	cmake : update all dependencies
+	all : added arm64 binaries for Linux
+	regexp : migrated to pcre2, fixing matches with null characters (#249)
+	regexp : fixed stack overflow with large strings (#262)
+	regexp : added regexp_matched_num function (#257)
+	nekotools : allowed custom 404 handler for server (#278)
+	nekotools : added `nekotools boot -c *.n` option to help output (#273)
+	ui : migrated to gtk3 on Linux (#220)
 
 2019-10-19 : 2.3.0
 	std : added socket_set_broadcast function (#190)