Fixed bugs:

• er-macro-transformer's rename procedure didn't rename given identifiers properly. #103, #110
• Internal definition didn't behave as letrec*. #106
• Creating record constructor overwrote previous one. #107
• Compilation error with certain vector. #108
• Using get-bytevector-n and get-bytevector-n! on socket port hanged. #109
• Passing empty port to json-read hanged. #111
• Subtraction of real number and complex number returned incorrect value. #112
• sin, cos, tan, asin, acos and atan didn't accept complex number. #113
• Importing cached (sagittarius debug) on REPL caused SEGV.

Improvements:

• R6RS/R7RS strict mode. This fixes #104
• Macro expander is now more R6RS compliant.
• R6RS/R7RS macros can co-operate better.
• json-read now can return EOF if nothing to read.
• string->utf8 and utf8->string are now as twice as faster.
• OAEP padding is now bouncy castle compatible as well.

New features:

• Shared queue library (util concurrent shared-queue) has been added. Not documented.
• Pointer conversion procedure bytevector->pointer has been added to (sagittarius ffi).
• address macro can now take offset argument to specify from where to pass.
• pointer->bytevector can now take offset argument to specify from where to convert to a bytevector.
• allocate-pointer procedure can now take fill optional argument.