describe how to upgrade to 1.1

Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>

README

@@ -40,7 +40,6 @@ it ticks differently:
 ### Architecture
 
  * Push mode (server pushes configuration)
- * Pull mode planned (client triggers configuration)
  * User defines configuration in shell scripts (called ***manifests***)
  * Generates internal configuration (cconfig style)
  * Uses ***types*** to generate code be executed on the target
@@ -58,15 +57,10 @@ but is not. Or: The reason why I began to write cdist.
  * Meaningful error messages
  * No surprise factor
  * Consistency in behaviour, naming and documentation
- * Easy integration nacked installations
+ * Easy integration into bare metal installations
  * Simple and well-known DSL: posix shell
- * It is very easy to
-  * extend cdist
-  * debug cdist-core and cdist-types
- * Focus on reuse of existing functionality
-  * ssh
-  * sh
-  * find, rm, ...
+ * It must be very easy to extend and debug cdist
+ * Focus on reuse of existing functionality (like sh, ssh, find, rm, ...)
 
 ## Requirements
 
@@ -104,21 +98,22 @@ how to use cdist.
 
 ### Available versions
 
-There are at least two branches available:
+There are at least the following branches available:
 
  * master: the development branch
- * 1.0: stable branch of version 1.0
+ * 1.0: First official release
+ * 1.1: Current stable (includes __file type change)
 
-Other branches may be available as well for features or bugfixes, but they
+Other branches may be available for features or bugfixes, but they
 may vanish at any point. To select a specific branch use
 
     # Generic code
     git checkout -b <name> origin/<name>
     
-    # Stay on version 1.0
-    git checkout -b 1.0 origin/1.0
+    # Stay on version 1.1
+    git checkout -b 1.1 origin/1.1
 
-### Update
+## Update
 
 To upgrade cdist in the current branch use
 
@@ -128,10 +123,20 @@ To upgrade cdist in the current branch use
     make man
     export MANPATH=$MANPATH:$(pwd -P)/doc/man
 
+If you stay on a version branche (i.e. 1.0, 1.1., ...), nothing should break.
+The master branch on the other hand is the development branch and may not be
+working, break your setup or eat the tree in your garden.
+
+### Upgrading from 1.0 to 1.1
+
+In 1.1 the type **__file** was split into **__directory**, **__file** and
+**__link**. The parameter **--type** was removed from **__file**. Thus you
+need to replace **__file** calls in your manifests:
+
+ * Remove --type from all __file calls
+ * If type was symlink, use __link and --type symbolic
+ * If type was directory, use __directory
 
-The version branches are designed to change if there are incompatibilities.
-Or the other way round: As long as you stay on 1.0 and do git pull, nothing
-should break.
 
 ## Support