# SLEPc - Scalable Library for Eigenvalue Problem Computations

News related to the SLEPc software package
https://slepc.upv.es en https://slepc.upv.es/imatges/lambda.png

# SLEPc - Scalable Library for Eigenvalue Problem Computations

https://slepc.upv.es Tue, 31 Mar 2026 15:53:12 +0200

# RSS feed added

Added an RSS feed for announcing events and patch releases. Use the &quot;subscribe&quot; button in the front webpage.
https://slepc.upv.es slepc-news-1 Wed, 12 Jan 2011 12:31:00 +0100

# New patch release slepc-3.1-p6

New patch release: slepc-3.1-p6 contains fixes for the QEP package so that it can be used from Fortran.
https://slepc.upv.es slepc-news-2 Mon, 21 Feb 2011 10:55:00 +0100

# New release version slepc-3.2

SLEPc 3.2 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-3 Fri, 28 Oct 2011 21:28:00 +0100

# New patch release slepc-3.2-p1

New patch release: slepc-3.2-p1 contains compilation fixes for C++ and several bugfixes.
https://slepc.upv.es slepc-news-4 Thu, 3 Nov 2011 18:10:00 +0100

# New patch release slepc-3.2-p2

New patch release: slepc-3.2-p2 contains many fixes for the Davidson solvers and also fixes the Fortran interface for monitors.
https://slepc.upv.es slepc-news-5 Fri, 18 Nov 2011 19:06:00 +0100

# New patch release slepc-3.2-p3

New patch release: slepc-3.2-p3 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-6 Tue, 29 Nov 2011 20:36:00 +0100

# New patch release slepc-3.2-p4

New patch release: slepc-3.2-p4 fixes a problem when building with Microsoft compilers.
https://slepc.upv.es slepc-news-7 Tue, 14 Feb 2012 16:36:00 +0100

# New patch release slepc-3.2-p5

New patch release: slepc-3.2-p5 includes fixes for the EPSJD solver, for external packages, and for the correct generation of shared libraries.
https://slepc.upv.es slepc-news-8 Wed, 4 Apr 2012 15:15:00 +0100

# New release version slepc-3.3

SLEPc 3.3 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-9 Fri, 3 Aug 2012 16:30:00 +0100

# New patch release slepc-3.3-p1

New patch release: slepc-3.3-p1 fixes broken builds with C++.
https://slepc.upv.es slepc-news-10 Sat, 4 Aug 2012 12:05:00 +0100

# New patch release slepc-3.3-p2

New patch release: slepc-3.3-p2 fixes the Fortran interfaces and several bugs in Davidson solvers and spectrum slicing.
https://slepc.upv.es slepc-news-11 Mon, 20 Aug 2012 17:00:00 +0100

# New patch release slepc-3.3-p3

New patch release: slepc-3.3-p3 contains miscellaneous fixes, including the use of spectral transformations with external packages, and compilation problems in C++.
https://slepc.upv.es slepc-news-12 Wed, 3 Oct 2012 08:33:00 +0100

# New patch release slepc-3.3-p4

New patch release: slepc-3.3-p4 contains miscellaneous fixes, related to Fortran stubs and the Davidson solvers.
https://slepc.upv.es slepc-news-13 Wed, 1 May 2013 18:15:00 +0100

# New release version slepc-3.4

SLEPc 3.4 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-14 Fri, 5 Jul 2013 23:55:00 +0100

# New patch release slepc-3.4.1

New patch release: slepc-3.4.1 contains various fixes for CISS, JD and the SVD for very thin tall matrices.
https://slepc.upv.es slepc-news-15 Wed, 31 Jul 2013 12:38:00 +0100

# New patch release slepc-3.4.2

New patch release: slepc-3.4.2 contains fixes for external packages and Fortran interfaces.
https://slepc.upv.es slepc-news-16 Mon, 2 Sep 2013 12:28:00 +0100

# New patch release slepc-3.4.3

New patch release: slepc-3.4.3 contains several bug fixes.
https://slepc.upv.es slepc-news-17 Mon, 14 Oct 2013 17:39:00 +0100

# New patch release slepc-3.4.4

New patch release: slepc-3.4.4 contains miscellaneous bug fixes.
https://slepc.upv.es slepc-news-18 Mon, 24 Mar 2014 17:08:00 +0100

# New release version slepc-3.5

SLEPc 3.5 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-19 Tue, 29 Jul 2014 17:36:00 +0100

# New patch release slepc-3.5.1

New patch release: slepc-3.5.1 contains fixes required to install the python wrappers (slepc4py).
https://slepc.upv.es slepc-news-20 Mon, 1 Sep 2014 19:41:00 +0100

# New patch release slepc-3.5.2

New patch release: slepc-3.5.2 contains miscellaneous fixes, for spectrum slicing, deflation vectors, and others.
https://slepc.upv.es slepc-news-21 Fri, 10 Oct 2014 14:50:00 +0100

# New patch release slepc-3.5.3

New patch release: slepc-3.5.3 contains miscellaneous fixes, mainly related to the Fortran stubs and the configuration script.
https://slepc.upv.es slepc-news-22 Fri, 19 Dec 2014 10:28:00 +0100

# Announcement of talk and tutorial on SLEPc

A talk and a tutorial on SLEPc will be given at the workshop <a href="https://www.mcs.anl.gov/petsc-20/" target=_blank>Celebrating 20 Years of Computational Science with PETSc</a> at Argonne National Lab on June 15-18, 2015.
https://slepc.upv.es slepc-news-23 Tue, 19 May 2015 10:00:00 +0100

# New patch release slepc-3.5.4

New patch release: slepc-3.5.4 contains miscellaneous fixes, mainly related to the MFN solver and the DS auxiliary class.
https://slepc.upv.es slepc-news-24 Mon, 25 May 2015 10:15:00 +0100

# New release version slepc-3.6

SLEPc 3.6 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-25 Fri, 12 Jun 2015 17:15:00 +0100

# New patch release slepc-3.6.1

New patch release: slepc-3.6.1 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-26 Thu, 3 Sep 2015 17:15:00 +0100

# New patch release slepc-3.6.2

New patch release: slepc-3.6.2 contains various fixes, related to the EPSLOBPCG and NEPINTERPOL solvers, among other issues.
https://slepc.upv.es slepc-news-27 Tue, 3 Nov 2015 18:08:00 +0100

# PETSc User Meeting 2016

SLEPc developers will be attending the forthcoming <a href="https://www.mcs.anl.gov/petsc/meetings/2016/" target=_blank>PETSc User Meeting 2016</a> in Vienna on June 28-30, 2016.
https://slepc.upv.es slepc-news-28 Mon, 21 Mar 2016 18:30:00 +0100

# New SLEPc technical report

A new SLEPc technical report STR-11 has been added in the <a href="https://slepc.upv.es/documentation">documentation section</a>. The report describes the contour integral solvers in SLEPc.
https://slepc.upv.es slepc-news-29 Mon, 21 Mar 2016 18:30:00 +0100

# New patch release slepc-3.6.3

New patch release: slepc-3.6.3 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-30 Tue, 29 Mar 2016 17:20:00 +0100

# New release version slepc-3.7

SLEPc 3.7 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-31 Mon, 16 May 2016 13:15:00 +0200

# New patch release slepc-3.7.1

New patch release: slepc-3.7.1 contains miscellaneous fixes, mainly related to the MFNKRYLOV and PEPJD solvers.
https://slepc.upv.es slepc-news-32 Fri, 27 May 2016 18:34:00 +0200

# New patch release slepc-3.7.2

New patch release: slepc-3.7.2 contains miscellaneous fixes concerning different components of SLEPc.
https://slepc.upv.es slepc-news-33 Tue, 19 Jul 2016 13:22:00 +0200

# New patch release slepc-3.7.3

New patch release: slepc-3.7.3 fixes some bugs in auxiliary components of SLEPc such as DS, BV and RG.
https://slepc.upv.es slepc-news-34 Thu, 29 Sep 2016 13:15:39 +0200

# New patch release slepc-3.7.4

New patch release: slepc-3.7.4 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-35 Wed, 17 May 2017 10:42:28 +0200

# SLEPc video-tutorials

Several video-tutorials have been added to the <a href="https://slepc.upv.es/documentation">documentation section</a>.
https://slepc.upv.es slepc-news-36 Tue, 06 Jun 2017 13:12:07 +0200

# New release version slepc-3.8

[SLEPc 3.8 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-37 Fri, 20 Oct 2017 20:31:59 +0200

# New patch release slepc-3.8.1

New patch release: slepc-3.8.1 contains fixes to the new filter functionality, among others.
https://slepc.upv.es slepc-news-38 Fri, 03 Nov 2017 13:07:46 +0100

# New patch release slepc-3.8.2

New patch release: slepc-3.8.2 contains several bug fixes, most notably in the evaluation of functions of complex Hermitian matrices.
https://slepc.upv.es slepc-news-39 Fri, 01 Dec 2017 17:38:27 +0100

# New patch release slepc-3.8.3

New patch release: slepc-3.8.3 fixes compilation problems in some machines.
https://slepc.upv.es slepc-news-40 Tue, 03 Apr 2018 17:07:04 +0200

# New release version slepc-3.9

SLEPc 3.9 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-41 Thu, 12 Apr 2018 19:12:28 +0200

# New patch release slepc-3.9.1

New patch release: slepc-3.9.1 contains several bug fixes, mainly related to the new PEP solver, and also fixes some minor problems when doing prefix installs.
https://slepc.upv.es slepc-news-42 Wed, 02 May 2018 17:34:33 +0200

# New patch release slepc-3.9.2

New patch release: slepc-3.9.2 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-43 Mon, 02 Jul 2018 19:45:47 +0200

# New release version slepc-3.10

SLEPc 3.10 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-44 Tue, 18 Sep 2018 23:37:32 +0200

# New patch release slepc-3.10.1

New patch release: slepc-3.10.1 contains a few fixes, particularly support for DESTDIR in prefix installation.
https://slepc.upv.es slepc-news-45 Tue, 23 Oct 2018 12:40:11 +0200

# New patch release slepc-3.10.2

New patch release: slepc-3.10.2 contains several compilation fixes, in particular for prefix installation.
https://slepc.upv.es slepc-news-46 Mon, 11 Feb 2019 18:03:39 +0100

# New release version slepc-3.11

SLEPc 3.11 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-47 Fri, 29 Mar 2019 13:18:30 +0100

# New patch release slepc-3.11.1

New patch release: slepc-3.11.1 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-48 Tue, 30 Apr 2019 13:23:40 +0200

# New patch release slepc-3.11.2

New patch release: slepc-3.11.2 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-49 Tue, 30 Jul 2019 18:50:45 +0200

# New release version slepc-3.12

SLEPc 3.12 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-40 Mon, 30 Sep 2019 16:02:13 +0200

# New patch release slepc-3.12.1

New patch release: slepc-3.12.1 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-41 Fri, 08 Nov 2019 18:01:05 +0100

# SLEPc repository been moved to GitLab

The SLEPc repository has been moved from BitBucket to GitLab. For each local copy of the SLEPc repository you need to do: git remote set-url origin git@gitlab.com:slepc/slepc.git or git remote set-url origin https://gitlab.com/slepc/slepc.git
https://slepc.upv.es slepc-news-42 Tue, 10 Dec 2019 19:14:52 +0100

# New patch release slepc-3.12.2

New patch release: slepc-3.12.2 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-43 Mon, 13 Jan 2020 13:09:21 +0100

# New release version slepc-3.13

SLEPc 3.13 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-44 Tue, 31 Mar 2020 17:08:41 +0200

# New patch release slepc-3.13.1

New patch release: slepc-3.13.1 fixes compilation in some systems, and includes a few improvements in the new solver EPSLYAPII.
https://slepc.upv.es slepc-news-45 Sun, 12 Apr 2020 11:10:05 +0200

# New patch release slepc-3.13.2

New patch release: slepc-3.13.2 mainly includes fixes in makefiles and configure scripts.
https://slepc.upv.es slepc-news-46 Tue, 12 May 2020 15:46:45 +0200

# New patch release slepc-3.13.3

New patch release: slepc-3.13.3 has miscellaneous fixes, mostly related to configuring with python3.
https://slepc.upv.es slepc-news-47 Sun, 14 Jun 2020 18:51:46 +0200

# New patch release slepc-3.13.4

New patch release: slepc-3.13.4 contains several fixes, and also the change to backward error convergence criterion by default in NEP.
https://slepc.upv.es slepc-news-48 Wed, 02 Sep 2020 17:10:54 +0200

# New release version slepc-3.14

SLEPc 3.14 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-49 Wed, 30 Sep 2020 17:55:05 +0200

# New patch release slepc-3.14.1

New patch release: slepc-3.14.1 has miscellaneous fixes, including some fixes related to STFILTER and the wrapper to ELPA.
https://slepc.upv.es slepc-news-50 Tue, 08 Dec 2020 19:43:10 +0100

# New patch release slepc-3.14.2

New patch release: slepc-3.14.2 contains miscellaneous fixes, mainly in the configure script, and also in the interface to ScaLAPACK.
https://slepc.upv.es slepc-news-51 Mon, 01 Feb 2021 15:53:15 +0100

# The development version has changed the branch name

The development version has changed the branch name, as in PETSc: 'main' instead of 'master'. Users of the git repository should switch to the 'main' branch with 'git fetch && git checkout main && git branch -D master'.
https://slepc.upv.es slepc-news-52 Sat, 27 Feb 2021 08:34:55 +0100

# New release version slepc-3.15

SLEPc 3.15 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-53 Wed, 31 Mar 2021 14:15:40 +0200

# New patch release slepc-3.15.1

New patch release: slepc-3.15.1 contains various configuration and compilation fixes, and bug fixes in SVDCROSS and SVDCYCLIC.
https://slepc.upv.es slepc-news-54 Fri, 28 May 2021 11:04:01 +0200

# New patch release slepc-3.15.2

New patch release: slepc-3.15.2 fixes a problem with polynomial filters and other minor issues.
https://slepc.upv.es slepc-news-55 Mon, 20 Sep 2021 12:03:09 +0200

# New release version slepc-3.16

SLEPc 3.16 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-56 Fri, 01 Oct 2021 12:37:48 +0200

# New patch release slepc-3.16.1

New patch release: slepc-3.16.1 contains miscellaneous fixes, most notably related to the NEP module.
https://slepc.upv.es slepc-news-57 Wed, 17 Nov 2021 16:16:31 +0100

# New patch release slepc-3.16.2

New patch release: slepc-3.16.2 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-58 Tue, 01 Feb 2022 12:17:22 +0100

# New release version slepc-3.17

SLEPc 3.17 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-58 Thu, 31 Mar 2022 18:18:55 +0200

# New patch releases slepc-3.16.3 and slepc-3.17.1

New patch releases: slepc-3.16.3 and slepc-3.17.1 both contain a fix that recover installation via pip install, which was broken in versions 3.16.2 and 3.17.0.
https://slepc.upv.es slepc-news-59 Mon, 11 Apr 2022 18:08:04 +0200

# New patch release slepc-3.17.2

New patch release: slepc-3.17.2 contains miscellaneous fixes, most of them related to Fortran.
https://slepc.upv.es slepc-news-60 Tue, 09 Aug 2022 11:56:25 +0200

# New release version slepc-3.18

SLEPc 3.18 has been released. The distribution file is available at the website.
https://slepc.upv.es slepc-news-61 Sat, 01 Oct 2022 09:38:08 +0200

# New patch release slepc-3.18.1

New patch release: slepc-3.18.1 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-62 Wed, 02 Nov 2022 13:07:32 +0100

# New patch release slepc-3.18.2

New patch release: slepc-3.18.2 fixes a configure problem, and some python issues.
https://slepc.upv.es slepc-news-63 Thu, 26 Jan 2023 13:46:33 +0100

# New patch release slepc-3.18.3

New patch release: slepc-3.18.3 fixes compilation with GNUMake 4.4.1 and also fixes some issues when configuring with external packages.
https://slepc.upv.es slepc-news-64 Fri, 24 Mar 2023 12:58:59 +0100

# New release version slepc-3.19

SLEPc 3.19 has been released. The distribution file is available at the <a href='https://slepc.upv.es/download'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-65 Fri, 31 Mar 2023 12:15:59 +0200

# New patch release slepc-3.19.1

New patch release: slepc-3.19.1 contains miscellaneous fixes, mainly in makefiles.
https://slepc.upv.es slepc-news-66 Mon, 15 May 2023 11:21:39 +0200

# New patch release slepc-3.19.2

New patch release: slepc-3.19.2 contains miscellaneous fixes, including build fixes for fortran and python.
https://slepc.upv.es slepc-news-67 Tue, 05 Sep 2023 13:03:29 +0200

# New release version slepc-3.20

SLEPc 3.20 has been released. The distribution file is available at the <a href='https://slepc.upv.es/download'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-68 Fri, 29 Sep 2023 13:52:31 +0200

# New patch release slepc-3.20.1

New patch release: slepc-3.20.1 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-69 Mon, 27 Nov 2023 18:44:57 +0100

# New patch release slepc-3.20.2

New patch release: slepc-3.20.2 contains miscellaneous fixes.
https://slepc.upv.es slepc-news-70 Fri, 15 Mar 2024 13:01:35 +0100

# PETSc User Meeting 2024

SLEPc developers will be attending the forthcoming <a href='http://cds.uni-koeln.de/en/workshops/petsc-2024/home' target=_blank>PETSc User Meeting 2024</a> in Cologne on May 23-24, 2024.
https://slepc.upv.es slepc-news-71 Tue, 19 Mar 2024 08:27:24 +0100

# New release version slepc-3.21

SLEPc 3.21 has been released. The distribution file is available at the <a href='https://slepc.upv.es/download'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-72 Sat, 30 Mar 2024 12:03:18 +0100

# New patch release slepc-3.21.1

New patch release: slepc-3.21.1 contains miscellaneous changes including CUDA-related performance fixes and fixes for installing slepc4py with pip.
https://slepc.upv.es slepc-news-73 Sat, 27 Apr 2024 19:23:54 +0200

# New patch release slepc-3.21.2

New patch release: slepc-3.21.2 contains miscellaneous fixes, including compilation in some systems.
https://slepc.upv.es slepc-news-74 Wed, 25 Sep 2024 13:09:21 +0200

# New release version slepc-3.22

SLEPc 3.22 has been released. The distribution file is available at the <a href='https://slepc.upv.es/download'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-75 Sun, 29 Sep 2024 12:43:00 +0200

# New patch release slepc-3.22.1

New patch release: slepc-3.22.1 fixes some issues related to makefiles, and other minor problems.
https://slepc.upv.es slepc-news-76 Mon, 28 Oct 2024 10:26:48 +0100

# New patch release slepc-3.22.2

New patch release: slepc-3.22.2 includes several build-related fixes, mainly for slepc4py, and minor fixes in BSE solvers.
https://slepc.upv.es slepc-news-77 Mon, 02 Dec 2024 09:45:00 +0100

# New release version slepc-3.23

SLEPc 3.22 has been released. The distribution file is available at the <a href='https://slepc.upv.es/download'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-78 Sat, 29 Mar 2025 12:59:43 +0100

# New patch release slepc-3.23.1

New patch release: slepc-3.23.1 includes minor fixes in Fortran bindings, as well as for configuration issues and compile warnings.
https://slepc.upv.es slepc-news-79 Thu, 01 May 2025 13:09:35 +0200

# New patch release slepc-3.23.2

New patch release: slepc-3.23.2 includes miscellaneous fixes for configure/build and also for some solvers such as two-sided EPS.
https://slepc.upv.es slepc-news-80 Mon, 30 Jun 2025 10:16:23 +0200

# New website available soon

We are in the process of renovating the SLEPc website. The new website will be published during the first weeks of September, and it will look more like the PETSc website, with a similar organization.
https://slepc.upv.es slepc-news-81 Tue, 29 Jul 2025 12:36:04 +0200

# New patch release slepc-3.23.3

New patch release: slepc-3.23.3 includes miscellaneous fixes.
https://slepc.upv.es slepc-news-82 Mon, 08 Sep 2025 12:59:01 +0200

# New release version slepc-3.24

SLEPc 3.24 has been released. The distribution file is available at the <a href='https://slepc.upv.es/release/installation/download.html'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-83 Tue, 30 Sep 2025 14:52:16 +0200

# New patch release slepc-3.24.1

New patch release: slepc-3.24.1 includes miscellaneous fixes, mainly related to documentation.
https://slepc.upv.es slepc-news-84 Fri, 07 Nov 2025 09:51:44 +0100

# New patch release slepc-3.24.2

New patch release: slepc-3.24.2 fixes processing configure options, adds missing methods in slepc4py, fixes support for nested vectors in structured eigenproblems, and a performance bug in subspace iteration.
https://slepc.upv.es slepc-news-85 Tue, 20 Jan 2026 12:43:51 +0100

# New patch release slepc-3.24.3

New patch release: slepc-3.24.3 fixes building slepc4py with setuptools 81.
https://slepc.upv.es slepc-news-86 Mon, 09 Mar 2026 10:16:24 +0100

# New release version slepc-3.25

SLEPc 3.25 has been released. The distribution file is available at the <a href='https://slepc.upv.es/release/installation/download.html'>download page</a>. See a list of <a href='https://gitlab.com/slepc/slepc/-/blob/main/CHANGELOG.md'>changes</a> in this version.
https://slepc.upv.es slepc-news-87 Tue, 31 Mar 2026 15:53:12 +0200