### I/O

- Fix the order of creation of the TStreamerInfo during the opening of a ROOT file to insure that the CollectionProxy are properly setup.
- Fix problem: "recover warning when opening an empty file created with TXNetFile" which was due to a bad check `in TFile::Recover` (line `TFile.cxx:1561`) where the inheritance from `TFile` should be checked instead of requiring the name to be `TFile`.
- In TBranch::File, in the case of importing the data directly from an external TBuffer, remove 80 char limit on reading the class name
- Re-enable support for the rootrc configuration `Root.ZipMode`.

#### Data Model Evolution

First step in the implemantation of the infrastructure for the new Data Model Evolution Scheme.
This Data Model Evolution is brought to your courtesy of BNL/STAR/ATLAS/Fermi/Cern

##### Current Capabilities

- Assign values to transient data members
- Rename classes
- Rename data members
- Change the shape of the data structures or convert one class
- structure to another
- Change the meaning of data members
- Ability to access the TBuffer directly when needed
- Ensure that the objects in collections are handled in the same way as the ones stored separately
- Supported in object-wise, member-wise and split modes.

##### Coming soon

- Make things operational also in bare ROOT mode
- Ability to transform data before writing
- Support for changing the class type of nested object in a split branch
- Support for access to onfile version of nested objects from within the parent rule

##### LinkDef rule syntax

Setting a transient member:

      #pragma read sourceClass="ACache" targetClass="ACache" source=""
      version="[1-]" target="zcalc" \
      code="{ zcalc = false; }"

Setting a new member from 2 removed members:

      #pragma read sourceClass="ACache" targetClass="ACache"
      source="int x; int y; char c" version="[8]" target="z" \
      code="{ z = onfile.x*1000 + onfile.y*10; }"

Renaming a class:

       #pragma read sourceClass="ACache" version="[8]"
       targetClass="Axis" \
       source="int x; int y;" target="z" \
       code="{ z = onfile.x*1000 + onfile.y*
       #pragma read sourceClass="ACache" version="[9]"
       targetClass="Axis";

See the long form documentation

##### Selection XML syntax

<read sourceClass="ACache" targetClass="ACache" source="" version="[1-]" target="zcalc"> <![CDATA[ { zcalc = false; } ]]></read>