Re: [MIT-Scheme-devel] 9.1 release notes

[Chris Hanson]

LGTM

Do you want to update the release notes page, or shall I?

On Tue, Oct 18, 2011 at 8:21 PM, Taylor R Campbell <address@hidden> wrote:
> I scanned the commits between 9.0.1 and 9.1 (approximately, since we
> don't currently use tags to identify them), and wrote up some brief
> release notes.  Not all the new features noted here are documented,
> and I'm not sure it's all entirely true, so I erred on the side of
> calling the major things `experimental'.  `Major' vs `minor' is pretty
> random.
>
> Any comments?
>
> * 9.1 release notes
>
> ** Incompatible changes
>
> *** Some declarations are no more:
> AUTOMAGIC-INTEGRATIONS, ETA-SUBSTITUTION, INTEGRATE-SAFELY, and
> OPEN-BLOCK-OPTIMIZATIONS.
>
> ** Major new features
>
> *** Ephemerons and the full range of hash table weakness options
>
> ** Experimental new features
>
> *** Control of the IEEE 754 floating-point environment
> *** Interface to C libraries, and a Gtk+ binding
> *** Rudimentary statistical profiling
> *** Self-evaluating keyword type and notation
> *** Swank support [does this work?]
>
> ** Major changes
>
> *** 64-bit times and file offsets are mostly handled now.
> *** A 20-year-old register allocator bug has been fixed.
> *** Much of SF has been rewritten and some internal features removed.
> *** Overall speed of compiled i386/x86-64 code has improved by better 
> branches.
> *** Primitives doing multiple allocations are less likely to wedge the GC.
> *** Symbols can now be garbage-collected.
>
> ** Minor new features
>
> *** Syntax BEGIN0
> *** Procedures FLO:EXPM1, FLO:LOGP1
> *** Integer division operators
> *** Declaration IGNORABLE
> *** Procedure ((CONSTANT-PROCEDURE <x>) <args> ...) = <x>
> *** Procedure (REFERENCE-BARRIER <x>) for wrangling weakness
> *** Operations on two's-complement representation of general integers
> *** Unicode support in the char-set abstraction, deprecating alphabets
> *** Unparser methods for entities
>
> ** Minor changes and bug fixes
>
> *** A number of obscure bugs have been fixed.
> *** IMAIL is a little faster.
> *** Negative (eastern hemisphere) time zones should work now.
> *** Some archaic parts of the microcode have been garbage-collected.
> *** Many bugs and race conditions in subprocesses have been eliminated.
> *** Scheme handles failure of the close(2) system call correctly now.
> *** Scheme's stack is now marked non-executable.
> *** Termcap library selection is a little more robust.
> *** The build system is a little more robust to interruption.
> *** Trap handling and recovery is a little more robust.
> *** We now do a little more automatic testing.
> *** Wt-tree balancing has been fixed.
> *** `scheme --batch-mode' no longer messes with the tty modes.
> *** X11 support is now dynamically loadable, not a compile-time option.
>
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