This is 5.2-dev

configure.ac

@@ -1,7 +1,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.50])
-AC_INIT([shairport-sync], [5.1-dev], [4265913+mikebrady@users.noreply.github.com])
+AC_INIT([shairport-sync], [5.2-dev], [4265913+mikebrady@users.noreply.github.com])
 : ${CFLAGS="-O3"}
 : ${CXXFLAGS="-O3"}
 AM_INIT_AUTOMAKE([subdir-objects])

shairport.c

@@ -574,9 +574,6 @@ int parse_options(int argc, char **argv) {
 #endif
     config.firmware_version = strdup(PACKAGE_VERSION);
 
-  free(config.firmware_version);
-  config.firmware_version = strdup("5.2");
-
 #ifdef CONFIG_METADATA
   /* Get the metadata setting. */
   config.metadata_enabled = 1; // if metadata support is included, then enable it by default