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ANTLR v3.1.1 is a bug fix release (and a few tweaks to the examples-v3 directory).
From bug tracking system
- ANTLR-4 Imaginary ttoken rewrite requires 8 bit characters - needs STRING type
- ANTLR-314 rule return aggregate type must be same for all += labels
- ANTLR-320 FOLLOW of rule element not computed properly
- ANTLR-326 Users sees small memory leak at the termination of tree producing parser
- ANTLR-334 Check index 0 vs -1 changes
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