Release notes for ABCL 0.15

Major changes and new features

Fixed special bindings un-binding in compiled code for (local) transfer of control using GO/RETURN-FROM: Special bindings now will get unbound in many more cases and much more efficiently upon local transfer of control.
Reduced ANSI failures in both compiled and interpreted modes: MULTIPLE-VALUE-SETQ wasn't working correctly on symbol macros. Multiple issues with DEFINE-SETF-EXPANDER, and others. See CHANGES.
Multiple JSR-233 (Java scripting) support fixes: See the logs for more: too much to summarize.
Compiler new feature: Support for COMPILE-ing functions with non-empty lexical environments - which themselves are not being compiled.
Google App Engine: Don't break when being run on Google App Engine because 'os.arch' isn't set.
COMPILER-LET and MACROEXPAND-ALL: CLtL2 primitive COMPILER-LET is now supported in the EXT package, so is MACROEXPAND-ALL.

Major changes and new features

Fixed special bindings un-binding in compiled code for MULTIPLE-VALUE-BIND, LET, LET*, PROGV and function bodies: Special bindings now will get unbound even in case of (non-Lisp) exceptions.
Reduced ANSI failures in interpreted mode: RESTART-CASE wrongly didn't use the macro expansion environment to expand subforms.
Lisp build system changed for parity with the Ant based build: The Lisp build was lagging behind on adjustments made to the Ant based build. abcl.jar generated from either should now be the same.
Several fixes to numeric calculations: EXPT fixed for (EXPT NUMBER BIGNUM) and (EXPT BIGNUM RATIO). Also, ACOS with a complex double-float argument.

Major changes and new features

JSR-223: Java Scripting Plugin: ABCL supports - when built with the javax.script package in the CLASSPATH - the interfaces defined in JSR-223.
Support for inlining FLOAT results: When given the right DECLARE forms, ABCL is now able to inline calculations and intermediate values relating to FLOAT types. Before, it used to box all FLOAT values and results, without inlining.
Compiler cleanups: Lots of code cleanup in the compiler, such as elimination of nearly-equivalent code blocks.
TRACE-ing fixes: TRACE should no longer blow up when tracing FORMAT or inside the compiler.
Support for "partial" wildcards in CL:DIRECTORY: Patterns such as #p"cl-*.lisp" are now supported.

These release notes have not been created before. If someone takes the effort to create them, they will be added for 0.11 and 0.12.