X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=README.md;h=2b48d5e86dbc540c0268a4c743869fcf9124ef73;hb=d8e180b0ca87bf675d5fda2099d49c9d0043cd42;hp=a75235b3649f2979edb9dc90767efe09a6204b3b;hpb=bed57b3c24a75c182af4cff2aa17d840e4c2fe27;p=plcapi.git

diff --git a/README.md b/README.md
index a75235b..2b48d5e 100644
--- a/README.md
+++ b/README.md
@@ -10,10 +10,26 @@ Detailed installation instructions are in the [INSTALL.md](INSTALL.md) file, alo
 
 Documentation
 -------------
+
+*NB: the user manual has not been updated yet with all the changes made in version 4. Please consider it unreliable!*
+
+*You are encouraged to look instead the code examples found in the demo/ directory*
+
 The user manual can be found in the doc/manual directory, in Asciidoc format: [phpxmlrpc_manual.adoc](doc/manual/phpxmlrpc_manual.adoc)
 
 Release tarballs also contain the HTML and PDF versions, as well as an automatically generated API documentation.
 
+Upgrading
+---------
+If you are upgrading from version 3 or earlier you have two options:
+
+1. adapt your code to the new API (all changes needed are described in [doc/api_changes_v4.md](doc/api_changes_v4.md))
+
+2. use instead the *compatibility layer* which is provided. Instructions and pitfalls described in [doc/api_changes_v4.md](doc/api_changes_v4.md##enabling-compatibility-with-legacy-code)
+
+In any case, read carefully the docs in [doc/api_changes_v4.md](doc/api_changes_v4.md) and report back any undocumented
+issue using GitHub.
+
 License
 -------
 Use of this software is subject to the terms in the [license.txt](license.txt) file