diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b15ee80
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+# OS generated files
+.DS_Store
+
+# Editor backup files
+*~
+.*.swp
+.*.swo
+
+# Binary files.
+*.pdf
+
+# Generated files
+build/
+
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 95456e1..9fc9f91 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,7 +31,7 @@ message("-- Fortran compiler is ${CMAKE_Fortran_COMPILER} (${CMAKE_Fortran_COMPI
 
 # Version numbers.
 set (ALQUIMIA_MAJOR_VERSION 0)
-set (ALQUIMIA_MINOR_VERSION 2)
+set (ALQUIMIA_MINOR_VERSION 3)
 set (ALQUIMIA_PATCH_VERSION 1)
 set (ALQUIMIA_VERSION "${ALQUIMIA_MAJOR_VERSION}.${ALQUIMIA_MINOR_VERSION}.${ALQUIMIA_PATCH_VERSION}")