Open Source Terracotta Server 5.x can be downloaded as part of the Ehcache 3.x clustering kit.
Get a free trial of Terracotta 10.x including Caching (Ehcache 3.x) and Operational Store (TCStore) capabilities here:
Open Source Terracotta Server 4.x must be built from source (See the link to SVN under the Community menu).
Open source Terracotta Server Array (3.7) can be downloaded from terracotta-3.7.7.tar.gz. This is compatible with Ehcache 2.6.8 and Quartz 2.1.7.
|Please note that the 3.x code line is now several years old and is out of commercial support availability.|