diff --git a/Changes b/Changes
index fbad17a..a6ad115 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,4 @@
+4.24 2022-04-27
 - change required PDL version to 2.019
 - use INC and LIBS environment variables in checking for NetCDF 4 - thanks @doughunt
 - fix NetCDF 4 detection - thanks @doughunt
diff --git a/netcdf.pd b/netcdf.pd
index c04901c..e76e2e4 100644
--- a/netcdf.pd
+++ b/netcdf.pd
@@ -1,7 +1,7 @@
 # -*- Perl -*-
 use Config;
 use Devel::CheckLib qw(check_lib);
-our $VERSION = '4.23';
+our $VERSION = '4.24';
 pp_setversion($VERSION);
 
 my $ncversion = {nc_inq_var_deflate => check_lib(