+* new: introduction of namespaces and full OOP.
++
+All php classes have been renamed and moved to separate files.
++
+Class autoloading can now be done in accord with the PSR-4 standard.
++
+All global variables and global functions have been removed.
++
+Iterating over xmlrpc value objects is now easier thank to support for ArrayAccess and Traversable interfaces.
++
+Backward compatibility is maintained via _lib/xmlrpc.inc_, _lib/xmlrpcs.inc_ and _lib/xmlrpc_wrappers.inc_.
+ For more details, head on to doc/api_changes_v4.md
+
+* changed: the default character encoding delivered from the library to your code is now utf8.
+ It can be changed at any time setting a value to `PhpXmlRpc\PhpXmlRpc::$xmlrpc_internalencoding`
+
+* improved: the library now accepts requests/responses sent using other character sets than UTF-8/ISO-8859-1/ASCII.
+ This only works when the mbstring php extension is enabled.
+
+* improved: no need to call anymore `$client->setSSLVerifyHost(2)` to silence a curl warning when using https
+ with recent curl builds
+
+* improved: the xmlrpcval class now supports the interfaces `Countable` and `IteratorAggregate`
+
+* improved: a specific option allows users to decide the version of SSL to use for https calls.
+ This is useful f.e. for the testing suite, when the server target of calls has no proper ssl certificate,
+ and the cURL extension has been compiled with GnuTLS (such as on Travis VMs)
+
+* improved: the function `wrap_php_function()` now can be used to wrap closures (it is now a method btw)
+
+* improved: all _wrap_something()_ functions now return a closure by default instead of a function name
+
+* improved: debug messages are not html-escaped any more when executing from the command line
+
+* improved: the library is now tested using Travis ( https://travis-ci.org/ ).
+ Tests are executed using all php versions from 5.3 to 7.0 nightly, plus HHVM; code-coverage information
+ is generated using php 5.6 and uploaded to both Code Coverage and Scrutinizer online services
+
+* improved: phpunit is now installed via composer, not bundled anymore
+
+* improved: when phpunit is used to generate code-coverage data, the code executed server-side is accounted for
+
+* improved: the test suite has basic checks for the debugger and demo files
+
+* improved: more tests in the test suite
+
+* fixed: the server would not reset the user-set debug messages between subsequent `service()` calls
+
+* fixed: the server would not reset previous php error handlers when an exception was thrown by user code and
+ exception_handling set to 2
+
+* fixed: the server would fail to decode a request with ISO-8859-1 payload and character set declaration in the xml
+ prolog only
+
+* fixed: the client would fail to decode a response with ISO-8859-1 payload and character set declaration in the xml
+ prolog only
+
+* fixed: the function `decode_xml()` would not decode an xml with character set declaration in the xml prolog
+
+* fixed: the client can now successfully call methods using ISO-8859-1 or UTF-8 characters in their name
+
+* fixed: the debugger would fail sending a request with ISO-8859-1 payload (it missed the character set declaration).
+ It would have a hard time coping with ISO-8859-1 in other fields, such as e.g. the remote method name
+
+* fixed: the debugger would generate a bad payload via the 'load method synopsis' button for signatures containing NULL
+ or undefined parameters
+
+* fixed: the debugger would generate a bad payload via the 'load method synopsis' button for methods with multiple
+ signatures
+
+* improved: the debugger is displayed using UTF-8, making it more useful to debug any kind of service
+
+* improved: echo all debug messages even when there are characters in them which php deems to be in a wrong encoding;
+ previously those messages would just disappear (this is visible e.g. in the debugger)
+
+* changed: debug info handling
+ - at debug level 1, the rebuilt php objects are not dumped to screen (server-side already did that)
+ - at debug level 1, curl communication info are not dumped to screen
+ - at debug level 1, the tests echo payloads of failures; at debug level 2 all payloads
+
+* improved: makefiles have been replaced with a php_based pakefile
+
+* improved: the source for the manual is stored in asciidoc format, which can be displayed natively by GitHub
+ with nice html formatting. Also the HTML version generated by hand and bundled in tarballs is much nicer
+ to look at than previous versions
+
+* improved: all php code is now formatted according to the PSR-2 standard