<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div><div class=""><span style="font-size: 13px;" class="">We are pleased to announce the release of PETSc version 3.16 at </span><a href="https://petsc.org/release/download/" style="font-size: 13px;" class="">https://petsc.org/release/download/</a><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">A list of the major changes and updates can be found at </span><a href="https://petsc.org/release/docs/changes/316" style="font-size: 13px;" class="">https://petsc.org/release/docs/changes/316</a><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">The final update to petsc-3.15 i.e petsc-3.15.5 is also available</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">We recommend upgrading to PETSc 3.16 soon. As always, please report problems to </span><a href="mailto:petsc-maint@mcs.anl.gov" style="font-size: 13px;" class="">petsc-maint@mcs.anl.gov</a><span style="font-size: 13px;" class=""> and ask questions at </span><a href="mailto:petsc-users@mcs.anl.gov" style="font-size: 13px;" class="">petsc-users@mcs.anl.gov</a><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">This release includes contributions from</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Albert Cowie</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Alexei Colin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Barry Smith</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Blaise Bourdin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Carsten Uphoff</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Connor Ward</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Daniel Finn</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Daniel Shapero</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Erik Schnetter</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Fande Kong</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Hong Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jacob Faibussowitsch</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jed Brown</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jeremy Tillay</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Joe Wallwork</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Joseph Pusztay</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jose Roman</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Junchao Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Koki Sagiyama</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Kyle Gerard Felker</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lawrence Mitchell</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Leila Ghaffari</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lisandro Dalcin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Mark Adams</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Martin Diehl</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Matthew Knepley</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Matt McGurn</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Moritz Huck</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Mr. Hong Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">nathawani</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">olivecha</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Pablo Brubeck</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Patrick Sanan</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">pbrubeck</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Pierre Jolivet</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Richard Tran Mills</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Rylee Sundermann</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Sajid Ali</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Sam Reynolds</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Satish Balay</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Scott Kruger</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Stefano Zampini</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Toby Isaac</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Todd Munson</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Vaclav Hapla</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Yang Zongze</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Zhao Gang</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">and bug reports/patches/proposed improvements received from</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Adrian Croucher</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Alexandre Halbach</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Bret K. Stanford</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Chonglin Zhang (@zhangchonglin)</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">cleaf</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">"Constantinescu, Emil M."</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Damian Marek</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Daniel Stone</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Danyang Su</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">David Salac</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">dazza simplythebest</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Drew Parsons (@RizzerAtGitLab)</span><br style="font-size: 13px;" class=""><a href="mailto:edgar@openmail.cc" style="font-size: 13px;" class="">edgar@openmail.cc</a><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Emily Jakobs</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Emmanuel Ayala</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Eric Chamberland (@eric.chamberland)</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Fande Kong</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Getnet Betrie</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Haplav</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">hg</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Iman Datta</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">"Isaac, Tobin G"</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jacob Faibussowitsch</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jeremy Kozdon</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jin Chen</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Junchao Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lars Corbijn</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lawrence Mitchell</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lisandro Dalcin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">"Lundvick, Nick"</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Mark Adams</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Martin Diehl</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Matthew Otten</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Milan Pelletier</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Mr. Hong Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Nan Ding</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Pierre Jolivet</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Pieter Ghysels</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Qi Tang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">@qiuchangkai</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Rezgar Shakeri</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Rory Johnston</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Sam Fagbemi</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Saransh Saxena</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Sergio Bengoechea</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Stephen Jardin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">TAY wee-beng</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Victor Eijkhout</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Xiaoye S. Li</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Yang Liu</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">As always, thanks for your support,</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Barry</span></div><div class=""><span style="font-size: 13px;" class=""><br class=""></span></div></body></html>