diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ea088fd0a6811089514f8039c3b62a84bba11ee..23ea5074d7a13d58add2cb8e684ceff1bbbb0923 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 :arrow_left: [Back to main page](./README.md)
 
+-   April 11, 2025: Version 5.6 adds a framework for MPI-parallel I/O, developed by [\@tlunet](https://github.com/tlunet), making it easier to visualize the data obtained with pySDC on HPC machines in software such as ParaView.
+    Also, pySDC is now compatible with the finite element library [Firedrake](https://github.com/firedrakeproject/firedrake) and the geophysical fluid dynamics library
+    [Gusto](https://github.com/firedrakeproject/gusto), thanks to [\@jshipton](https://github.com/jshipton) and [\@brownbaerchen](https://github.com/brownbaerchen).
+    The former allows to setup PDEs with finite element discretizations in pySDC and then solve in time with SDC and PFASST, while the latter allows to setup a geophysical fluid dynamics problem and then use pySDC with any SDC setup as a timestepper in Gusto.
 -   June 24, 2024: Major summer cleanup with Version 5.5. [\@tlunet](https://github.com/tlunet) extracted all quadrature-related stuff into his new standalone code 
     [qmat](https://github.com/Parallel-in-Time/qmat), which makes pySDC much more focussed and both parts easier to maintain. 
     [\@lisawim](https://github.com/lisawim) worked a lot on the DAE sweepers (including an MPI-parallel version), while [\@brownbaerchen](https://github.com/brownbaerchen) has fun with GPUs.
diff --git a/CITATION.cff b/CITATION.cff
index b87274cd4161fb15d8558a082931d759bedd62d7..d284ec02e2ae388c201088c6015ff5054728a1ca 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -28,11 +28,15 @@ authors:
     given-names: Jakob
     orcid: https://orcid.org/0000-0001-6280-8396
     affiliation: "Jülich Supercomputing Centre, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany"
+  - family-names: Shipton
+    given-names: Jemma
+    orcid: https://orcid.org/0000-0002-8635-0831
+    affiliation: "Department of Mathematics and Statistics, University of Exeter, Exeter, UK"
 
 
-version: 5.5.2
+version: 5.6
 doi: 10.5281/zenodo.594191
-date-released: 2024-09-23
+date-released: 2025-04-11
 keywords: 
   - "parallel-in-time"
   - "spectral deferred corrections"
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 9a3eb65f0d4a3a8af54f7ccc1c3ef42f91f1151a..53e913c2bcc87f4d24672296d4594b2ae3fc7dea 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -70,9 +70,9 @@ author = 'Robert Speck, Thibaut Lunet, Thomas Baumann, Lisa Wimmer, Ikrom Akramo
 # built documents.
 #
 # The short X.Y version.
-version = '5.5'
+version = '5.6'
 # The full version, including alpha/beta/rc tags.
-release = '5.5.2'
+release = '5.6
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pyproject.toml b/pyproject.toml
index 5ea5109db25086878ff9e878d652b797427ffd77..37ad344377961a4eb0082f71fbfe5dcc18a24c95 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = 'pySDC'
-version = '5.5.2'
+version = '5.6'
 description = 'A Python implementation of spectral deferred correction methods and the likes'
 license = {text = "BSD-2-Clause"}
 readme = 'README.md'
@@ -16,6 +16,7 @@ authors=[
     {name='Ikrom Akramov', email='ikrom.akramov@tuhh.de'},
     {name='Giacomo Rosilho De Souza', email='giacomo.rosilhodesouza@usi.ch'},
     {name='Jakob Fritz', email='j.fritz@fz-juelich.de'},
+    {name='Jemma Shipton', email='j.shipton@exeter.ac.uk'},
     ]