diff --git a/EM/relion/.build.swn b/EM/relion/.build.swn
new file mode 100644
index 0000000..e69de29
diff --git a/EM/relion/README.md b/EM/relion/README.md
index 259faaa..a03e1ac 100644
--- a/EM/relion/README.md
+++ b/EM/relion/README.md
@@ -6,7 +6,7 @@ Relion is installed from git. The ./build script should work for both stable
 (tags) and unstable (branches) versions. It should be run on Merlin6 from an
 admin account.
 
-Currently only gcc/7.4.0 is used. Better performance is reported with intel icc
+Currently only gcc is used. Better performance is reported with intel icc
 and MKL, but this would require additional openmpi variants.
 
 After running ./build, install relion scripts from the repository at
diff --git a/EM/relion/files/variants b/EM/relion/files/variants
index 9976d7c..bc42c22 100644
--- a/EM/relion/files/variants
+++ b/EM/relion/files/variants
@@ -9,3 +9,5 @@ relion/3.1.0-1	stable	gcc/7.5.0 openmpi/4.0.4_slurm cuda/10.1.105 b:cmake/3.15.5
 relion/3.1.1	deprecated	gcc/9.3.0 openmpi/4.0.4_slurm cuda/11.0.3 b:cmake/3.15.5 b:tiff/4.0.9 b:git/2.22.0
 relion/3.1.1-1	stable	gcc/9.2.0 openmpi/4.0.5_slurm cuda/11.0.3 b:cmake/3.15.5 b:tiff/4.0.9 b:git/2.22.0
 relion/3.1.2	stable	gcc/9.2.0 openmpi/4.0.5_slurm cuda/11.0.3 b:cmake/3.15.5 b:tiff/4.0.9 b:git/2.22.0
+relion/3.1.3	unstable	gcc/9.2.0 openmpi/4.0.5_slurm cuda/11.0.3 b:cmake/3.15.5 b:tiff/4.0.9 b:git/2.22.0
+relion/4.0-beta	unstable	gcc/9.2.0 openmpi/4.0.5_slurm cuda/11.0.3 b:cmake/3.15.5 b:tiff/4.0.9 b:git/2.22.0