ADD: Update clients to support year split

Author: Dane Rigby

CHANGELOG.md

@@ -1,9 +1,10 @@
 # Changelog
 
-### 0.77.0 - TBD
+## 0.77.0 - TBD
 
-##### Enhancements
+#### Enhancements
 - Added new publisher values for Cboe Titanium Cboe Global Indices Feed
+- Added `YEAR` to `SplitDuration` enum to support yearly historical batch job submission
 
 ## 0.76.0 - 2026-04-21
 

databento/common/enums.py

@@ -134,6 +134,7 @@ class SplitDuration(StringyMixin, str, Enum):
     DAY = "day"
     WEEK = "week"
     MONTH = "month"
+    YEAR = "year"
     NONE = "none"
 
 

databento/historical/api/batch.py

@@ -122,7 +122,7 @@ def submit_job(
             `dbn`.
         split_symbols : bool, default False
             If files should be split by raw symbol. Cannot be requested with `'ALL_SYMBOLS'`.
-        split_duration : SplitDuration or str {'day', 'week', 'month', 'none'}, default 'day'
+        split_duration : SplitDuration or str {'day', 'week', 'month', 'year', 'none'}, default 'day'
             The maximum time duration before batched data is split into multiple files.
             A week starts on Sunday UTC.
         split_size : int, optional