Change default compression scheme to zstd

CHANGELOG.md

@@ -13,6 +13,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `zstdmt` feature which sets zstd compression to use all available cores.
 - Added feature flags for every compression algorithm to support disabling unused ones.
 
+### Breaking Changes
+
+- Changed default compression scheme from Gzip to Zstd.
+
 ## 0.15.0
 
 ### Breaking Changes

src/rpm/compressor.rs

@@ -156,12 +156,12 @@ impl Default for CompressionWithLevel {
     // reasonable tradeoff.
     #[allow(unreachable_code)]
     fn default() -> Self {
-        #[cfg(feature = "gzip-compression")]
-        return CompressionType::Gzip.into();
-
         #[cfg(feature = "zstd-compression")]
         return CompressionType::Zstd.into();
 
+        #[cfg(feature = "gzip-compression")]
+        return CompressionType::Gzip.into();
+
         #[cfg(feature = "xz-compression")]
         return CompressionType::Xz.into();