Bump version to 28.4

ejurgensen · ejurgensen · commit 04236029d42c · 2022-05-30T21:52:29.000+02:00
diff --git a/configure.ac b/configure.ac
@@ -1,7 +1,7 @@
 dnl Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.60])
-AC_INIT([owntone], [28.3])
+AC_INIT([owntone], [28.4])
 
 AC_CONFIG_SRCDIR([config.h.in])
 AC_CONFIG_MACRO_DIR([m4])
