The STH component is a Node.js application which depends on certain Node.js modules as stated in the
project.json file. Currently, the STH
component currently supports Node 0.10 and Node 4.0.
Apart from these Node.js modules, the STH component also needs a running MongoDB instance where the raw and aggregated
time series context information is stored for its proper functioning. Since the STH component uses
MongoDB update operators such as the
$max and the
update operators which were introduced in version 2.6, there is a dependency of the STH component with this concrete
version of the MongoDB database. Consequently, a MongoDB version >= 2.6 is needed to store the raw and aggregated
time series context information managed by the STH component.