changelog-experimental.md

 This page features all the experimental branch releases. Our experimental branch are usually updated multiple times a day and typically are perfectly safe to play, but you might want to back up your saves just in case we introduce a feature that will be changed during testing. Here are the changes since the last stable release:
 
+# 1.52.11:
+
+- Improved performance of encounter detection. Previously, when you made a lot of deals with shady entities, the performance of your game could degrade, as it attempted to trace each deal you made. The shady activity ledger is much faster now.
+- If you went straight from one established deal to a location of another deal of the same type, without visiting any other location between them, you could find nothing.
+- Fixed refuelling speed for crafts you attach to your ship. Previously, it used ore transfer pump capacities, which are slower for most crafts.
+- Saved games will not contain events that can not happen anymore. This improves loading speed. Old saves will be cleaned up automatically.
+
+Feedback Focus: Pirate deals, performance.
+
 # 1.52.9:
 
 - Ships and drones will only follow you through astrogation if they are actively following you, not just when they are particularly friendly or unfriendly. This changes both behaviours of THI cargo containers, both bought and found, which will not track you when you tell them to stay or return to the station, as well as particularly friendly miners, which now can be easier distracted from following you. As a downside, this might cause your hired wingmen or mining companions to not follow you if you sneakily astrogate away while they are busy mining, so make sure you give them orders to follow you.