Update changelogs

- PHP-7.4 alpha, beta, RC versions already include bugs logged in the
  NEWS
- some links to RFCs
- php_error_docref0

Author: petk

NEWS

@@ -5,6 +5,13 @@ PHP                                                                        NEWS
 - Core:
   . Fixed bug #78212 (Segfault in built-in webserver). (cmb)
 
+- Libxml:
+  . Fixed bug #78279 (libxml_disable_entity_loader settings is shared between
+    requests (cgi-fcgi)). (Nikita)
+
+- Opcache:
+  . Fixed bug #78271 (Invalid result of if-else). (Nikita)
+
 - Recode:
   . Unbundled the recode extension. (cmb)
 

UPGRADING

@@ -25,6 +25,7 @@ PHP 7.4 UPGRADE NOTES
   . Trying to use values of type null, bool, int, float or resource as an
     array (such as $null["key"]) will now generate a notice. This does not
     affect array accesses performed by list().
+    RFC: https://wiki.php.net/rfc/notice-for-non-valid-array-container
   . get_declared_classes() no longer returns anonymous classes that haven't
     been instantiated yet.
   . "fn" is now a reserved keyword. In particular it can no longer be used as a
@@ -457,6 +458,7 @@ PHP 7.4 UPGRADE NOTES
 - Recode:
   . The recode extension has been moved to PECL. For character set/encoding
     conversion the iconv or mbstring extensions could be used instead.
+    RFC: https://wiki.php.net/rfc/unbundle_recode
 
 - WDDX:
   . The WDDX extension has been deprecated and moved to PECL.

UPGRADING.INTERNALS

@@ -23,7 +23,8 @@ PHP 7.4 INTERNALS UPGRADE NOTES
   t. Exceptions thrown by string conversions.
   u. Removed uint and ulong typedefs
   v. Compound assignment opcodes
-  z. APACHE symbol removed
+  w. APACHE symbol removed
+  x. php_error_docref0() renamed to php_error_docref()
 
 2. Build system changes
   a. Abstract
@@ -220,7 +221,9 @@ PHP 7.4 INTERNALS UPGRADE NOTES
      ZEND_ASSIGN_DIM_OP, ZEND_ASSIGN_OBJ_OP and ZEND_ASSIGN_STATIC_PROP_OP with
      ZEND_ADD (or other) in extended_value.
 
-  z. APACHE symbol has been removed and is no longer defined.
+  w. APACHE symbol has been removed and is no longer defined.
+
+  x. php_error_docref0() has been removed and renamed to php_error_docref().
 
 ========================
 2. Build system changes