update changelog

CHANGELOG.md

@@ -15,8 +15,9 @@ Types of changes
 
 ## TODOs
 
+- add sources for BB tagging and ACN background
 - investigate if data caching is necessary (load-from-thredds)
-- add a secondary y axis to the timeseries plot; plot as line if sufficient data is available
+- scatter-plot: plot as line if sufficient data is available?
 
 ## Backlog
 
@@ -29,6 +30,19 @@ Types of changes
 
 ## [Unreleased]
 
+## v0.0.15 - 2025-03-26
+
+### Added
+
+- secondary variable to plot (optional)
+- info about BB flagging
+
+### Changed
+
+- app startup immediately fails if no datasets are found
+
+## v0.0.14 - 2025-03-26
+
 ### Changed
 
 - skip files that have no ACN data