<commit_before>---
layout: page
title: "Changelog"
category: dev
date: 2016-12-12 22:46:12
order: 1
---
### Version 0.3.1 (Stable) - TBA
- Improvement: A fixed amount of memtable flush threads is used per storage
- Improvement: Only one checkpoint thread per storage
- Improvement: Only one compact thread per storage 
- Improvement: Only one split task per storage 
- Improvement: Made service init interruptable
- Improvement: Better spread statistics
- Improvement: Enabled Zookeeper logging
- Improvement: Removed StorageRegistry singleton
- Improvement: Added unmapper for memory mapped regions
- Improvement: The R-Tree index is now written to disk. In previous versions, the index was recalculated on every SSTable opening
- Improvement: The R-Tree index is now calculated non-recursive to safe call stack memory
- Improvement: The R-Tree index now is based on tuple positions instead of keys
- Improvement: Made the Spatial index reader configurable
- Improvement: Check for 64 bit environment on start
- Improvement: Limit the amount of parallel queries per client
- Improvement: Client flush queue on next page request
- Improvement: Introduced the maximal unflushed package queue size<commit_msg>Released version 0.3.1<commit_after>---
layout: page
title: "Changelog"
category: dev
date: 2016-12-12 22:46:12
order: 1
---
### Version 0.3.1 (Stable) - 29.06.2017
- Improvement: A fixed amount of memtable flush threads is used per storage
- Improvement: Only one checkpoint thread per storage
- Improvement: Only one compact thread per storage 
- Improvement: Only one split task per storage 
- Improvement: Made service init interruptable
- Improvement: Better spread statistics
- Improvement: Enabled Zookeeper logging
- Improvement: Removed StorageRegistry singleton
- Improvement: Added unmapper for memory mapped regions
- Improvement: The R-Tree index is now written to disk. In previous versions, the index was recalculated on every SSTable opening
- Improvement: The R-Tree index is now calculated non-recursive to safe call stack memory
- Improvement: The R-Tree index now is based on tuple positions instead of keys
- Improvement: Made the Spatial index reader configurable
- Improvement: Check for 64 bit environment on start
- Improvement: Limit the amount of parallel queries per client
- Improvement: Client flush queue on next page request
- Improvement: Introduced the maximal unflushed package queue size
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