2.4.0

• Fixed stale notification when eviction or clear raced with an update (SOLR-10141)
• Improved handling of duplicate keys in bulk get methods
• Enforced non-null future from async mapping functions
• Improved exception handling of asyncLoadAll()

2.3.5

Cache

• Fixed deadlock caused by unexpected OutOfMemoryError (#130)

2.3.4

Cache

• Fixed live-lock when write buffer grows to capacity (#127, JCTools/JCTools#135)
• Ensure back pressure task is executed last (#124)
• Improved hot/cold iteration order

JCache

• Support null return value from CacheLoader (#119)

2.3.3

JCache

• Support dependency injection by using a custom factory (#117)

2.3.2

• Fixed write not triggering maintenance for reference cache (#111)
• Eagerly null fields on eviction to better cope with leak caused by modified keys (#103)

2.3.1

Cache

• Fixed maintenance starvation due to an exhausted executor (#90)

JCache

• Fixed enablement of JMX statistics and management (#87)

2.3.0

• Added back pressure to the write buffer for insert-heavy workloads (#67)
• Fixed deadlock when refreshing an asynchronous cache (#69)
• Refresh no longer blocks other writes (#56)
• Added evictionWeight statistic (#68)

2.2.7

• Stronger resistence to hash collision attacks (CASSANDRA-11452)

2.2.6

• Improved timeliness of fork-join rescheduling

2.2.5

• Fixed the periodic maintenance not being run due to the ForkJoinTask requiring reinitialization