ADD: Update clients to support year split

Author: Dane Rigby

CHANGELOG.md

@@ -1,9 +1,10 @@
 # Changelog
 
-### 0.55.0 - TBD
+## 0.55.0 - TBD
 
-##### Enhancements
+### Enhancements
 - Added new publisher values for Cboe Titanium Cboe Global Indices Feed
+- Added `Year` to `SplitDuration` enum for yearly historical batch job submissions
 
 ## 0.54.0 - 2026-04-21
 

include/databento/enums.hpp

@@ -24,6 +24,7 @@ enum class SplitDuration : std::uint8_t {
   Day = 0,
   Week,
   Month,
+  Year,
   None,
 };
 

src/enums.cpp

@@ -48,6 +48,9 @@ const char* ToString(SplitDuration duration_interval) {
     case SplitDuration::Month: {
       return "month";
     }
+    case SplitDuration::Year: {
+      return "year";
+    }
     case SplitDuration::None: {
       return "none";
     }
@@ -979,6 +982,9 @@ SplitDuration FromString(const std::string& str) {
   if (str == "month") {
     return SplitDuration::Month;
   }
+  if (str == "year") {
+    return SplitDuration::Year;
+  }
   if (str == "none") {
     return SplitDuration::None;
   }