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PETSc Release Version 3.0

petsc-3.0.0-p6.tar.gz - full distribution (including all current patches) with documentation
petsc-lite-3.0.0-p6.tar.gz - smaller version with no documentation (all documentation may be accessed on line)

There are no separate patch files, the current fixes are included in the tar file. Patches are documented at:
PETSc-3.0.0 Changelog
BuildSystem-3.0.0 Changelog

Older patchlevel tarballs are also available

Previous PETSc Releases

petsc-2.3.3.tar.gz
petsc-2.3.2.tar.gz
petsc-2.3.1.tar.gz
petsc-2.3.0.tar.gz
petsc-2.2.1.tar.gz
petsc-2.2.0.tar.gz
petsc-2.1.6.tar.gz
patches for all previous releases
older releases
We urge you, whenever possible, to upgrade to the latest version of PETSc.

PETSc development repository

You can work with the development copy of PETSc, and be up-to-date with our day-to-day work. This also facilitates easy submission of patches back to us. This usage is for experts only.

Linux Package versions

Petsc Debian Package- http://lyre.mit.edu/~powell/petsc.html

FreeBSD port

A FreeBSD port for PETSc is available at: http://www.freshports.org/math/petsc