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CMUCL
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CMUCL: a high-performance, free Common Lisp implementation
CMUCL: a high-performance, free Common Lisp implementation

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It's October and just in time for the CMUCL 21b release. To see what's changed between 21a and 21b, see https://gitlab.common-lisp.net/cmucl/cmucl/wikis/Release21b

Binaries are coming soon. Unfortunately, no ppc binaries are available at this time because the ppc machine is down.
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The 2015-07 snapshot has been released.  This fixes a few issues and, importantly, slime works out of the box again.  No need to (require :unix) to run slime anymore.

Also, thanks to Fred Gilham, we should have FreeBSD binaries once again.  He's also made a 20f release.  These will get uploaded soon. Thanks Fred!
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It's been a while since the last snapshot, but 2015-06 has just been released.  The changes are fairly minor. I've been occupied with other things of late, some related to cmucl and some not.
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common-lisp.net has been slowing transitioning services to use gitlab.  The transition is pretty much done, and cmucl is now officially at https://gitlab.common-lisp.net/cmucl/cmucl.  The ticket system and wiki is still using https://trac.common-lisp.net/cmucl, but we hope to migrate that to gitlab as well.

We want to thank the new common-lisp.net admin's for all of the their hard work in getting this done and for helping out with the transition!
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CMUCL 20f released

Find out more at trac.cmucl.org.
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With the 2014-09 snapshot, all ports of cmucl should now have consistent results for the special functions. Previously we depended on libm to most of the special functions. Not any more. We now use fdlibm to provide the special functions.  This means most functions (but not all) are now accurate to < 1 ulp. Hurray for accurate and consistent special functions!
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SSE2 has been supported by CMUCL since around 2008 and SSE2 was introduced in the Pentium 4 in 2001. It's now time to drop support for x87.

I suspect x87 is rarely, if ever, used anymore since CMUCL will automatically detect SSE2 and use that if your CPU supports. I rarely test x87 except to see that it starts when a snapshot is made.

Thus, in the near future x87 support will be removed from CMUCL. This will reduce the tarballs by half, and we'll be able to remove a fair amount of code and simplify some of the existing code as well. We'll also be announcing this on the mailing lists shortly.

If you need x87 support speak up!  No guarantees that we'll keep x87 support, but knowing that it's important to you will help.
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