bump PETSc version in doc

diff --git a/doc/external-libs/petsc.html b/doc/external-libs/petsc.html
index 65576e342348ac00e8cbf0afd20c278373dc9230..10a92ab7b7c1e2c3af2d14c7f664fe247020bc20 100644 (file)
--- a/doc/external-libs/petsc.html
+++ b/doc/external-libs/petsc.html
@@ -37,7 +37,7 @@
 
     <p style="color: red"><b>Note:</b> The most recent version of PETSc
       that has been reported to be compatible with
-      <acronym>deal.II</acronym> is version 3.5.1. If you use a later
+      <acronym>deal.II</acronym> is version 3.6.0. If you use a later
       version than this and encounter problems, let us know.
     </p>