update changelog

changelog.md

@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.74] - 2024-11-05
+- Ensure futures are all started at the same time, enabling proper multithreading
+- Synchronize thread count and urllib pool size to avoid dropped connections
+
 ## [0.73] - 2024-11-05
 - Set minimum interval per panel rather than globally, to avoid issues with panels using data from different sources with different intervals.
 - Set 15m minimum interval for GEANT LAMBDA / Managed Wavelength Service panels since the polling interval is 15m in the TNMS data source.