MOD: Deprecate packaging in clients

Author: threecgreen

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.25.0 - TBD
+
+### Deprecations
+- Deprecated `Packaging` enum and `packaging` field on `BatchJob`. These will be
+  removed in a future version. All files from a batch job can be downloaded with the
+  `BatchDownload` method on the historical client
+
 ## 0.24.0 - 2024-10-22
 
 ### Enhancements

include/databento/batch.hpp

@@ -31,6 +31,7 @@ struct BatchJob {
   SplitDuration split_duration;
   std::uint64_t split_size;
   bool split_symbols;
+  // NOTE: deprecated and will be removed in a future version
   Packaging packaging;
   Delivery delivery;
   std::uint64_t record_count;

include/databento/enums.hpp

@@ -86,6 +86,8 @@ enum class SplitDuration : std::uint8_t {
 };
 
 // Represents how a batch job will be packaged.
+//
+// NOTE: Deprecated now that all batch jobs can be downloaded as a ZIP file.
 enum class Packaging : std::uint8_t {
   None = 0,
   Zip,