From 9e0760e5501b0c77a12cca954175cc2408450d91 Mon Sep 17 00:00:00 2001
From: Timo Koch <timo.koch@iws.uni-stuttgart.de>
Date: Thu, 13 Feb 2020 15:39:20 +0100
Subject: [PATCH] [changelog] Add entry on AMGBackend

---
 CHANGELOG.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 554d8b82ec..9dfe1b7765 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,10 +15,13 @@ Differences Between DuMuX 3.2 and DuMuX 3.1
 - Remove `Grid.HeapSize` as dune-ugrid removed the according feature as well.
 - __Van Genuchten__: Corrected VanGenuchten-Mualem exponent in the non-wetting saturation formula (`1/3` instead of `1/2` (or `l`, see above))
 - __Van Genuchten__: Corrected VanGenuchten-Mualem implementation of `dkrn/dSw`
+- __AMGBackend__: The internal structure of the AMGBackend and the ParallelISTLHelper has been overhauled, as only used by the AMG, we did not make the changes backwards-compatible
 
 ### Deprecated properties, to be removed after 3.2:
 
 ### Deprecated classes/files, to be removed after 3.2:
+- __AMGBackend__: The class AMGBackend is deprecated and has been replaced by AMGBiCGSTABBackend which gets some different template arguments
+- __AMGTraits__: AMGTraits are deprecated, are to be replaced by LinearSolverTraits and restructured internally. As they were only used by the AMGBackend, we did not make the internal changes backwards-compatible
 
 ### Deprecated member functions, to be removed after 3.2:
 
-- 
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