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The most recent version of SBCL is 2.5.3, released March 30, 2025. Release notes.

The development version is available from git:

git clone git://git.code.sf.net/p/sbcl/sbcl

Binaries:

After downloading SBCL, refer to the getting started page for instructions on how to install the release.

Not all platforms have the latest binaries, but SBCL is still supported and working on these platforms. An older binary (or provided by an OS repository / homebrew / macports) or even a different CL implementation can be used to build the latest source by following the directions for compiling it.

The Linux binaries might require a recent glibc, but building from source isn't dependent on a particular glibc version

	x86-64	x86	PPC	PPC64le	SPARC	MIPSbe	MIPSle	ARMel	ARMhf	ARM64
Linux	2.5.3 newest	1.4.3	1.2.7	1.5.8	1.0.28	1.0.23	1.0.28	1.2.7	2.3.3	1.4.2
macOS (Darwin)	2.2.9	1.1.6								2.4.0
Solaris	1.2.7	1.2.7			2.0.4
FreeBSD	1.2.7	1.2.7								2.2.0
NetBSD	1.2.7	1.0.22	1.0.23
OpenBSD	2.0.5	2.0.5	2.0.5					2.0.5		2.0.5
DragonFly BSD	1.2.7
Debian GNU/kFreeBSD	1.2.7	1.2.7
Windows	2.5.3 newest	2.3.2

	Key
	Available and supported
	Port in progress
	Not available (porters welcome!)
	No such system/Obsolete system

	Processors
x86-64	64-bit x86 (AMD64, Intel EM64T, Via Nano)
x86	x86 (32-bit Intel and compatible)
PPC	PowerPC
PPC64	64-bit PowerPC
PPC64le	Little Endian 64-bit PowerPC
SPARC	SPARC and UltraSPARC
MIPSbe	MIPS (big endian mode)
MIPSle	MIPS (little endian mode)
ARMel	ARM (softfp ABI)
ARMhf	ARM (hard-float ABI)
ARM64	ARM64
RISC-V 32	32-bit RISC-V
RISC-V 64	64-bit RISC-V

Historically SBCL also ran on HP PA-RISC Linux; Alpha Linux, Tru64; PowerPC Mac OS X.

Older binaries and source releases are available on the SourceForge File Releases page.

Steel Bank Common Lisp

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Key

Processors