Protocol Buffers v2.4.1

Version 2.4.1

C++

• Fixed the frendship problem for old compilers to make the library now gcc 3
  compatible again.
• Fixed vcprojects/extract_includes.bat to extract compiler/plugin.h.

Java

• Removed usages of JDK 1.6 only features to make the library now JDK 1.5
  compatible again.
• Fixed a bug about negative enum values.
• serialVersionUID is now defined in generated messages for java serializing.
• Fixed protoc to use java.lang.Object, which makes "Object" now a valid
  message name again.

Python

• Experimental C++ implementation now requires C++ protobuf library installed.
  See the README.txt in the python directory for details.