Basic configuration page lets you specify a directory on the disk where you will keep your SIL™ programs, the charset used to interpret those files, and the cache size of the SIL™ scripts.
SIL™ Cache Size is the length of the LRU that is necessary to keep already parsed trees in the memory. At runtime, the SIL Engine™ has already picked up the parsed and optimized tree from the memory, thus sparing some milliseconds and a disk access. Of course, it is good if all the trees are ready, but you should know that this comes at the cost of memory. If SIL™ is not used often on your install, you may choose to disable this cache, although we do not recommend it.
The SIL Home Directory setting has been moved to the SIL Storage section of the Power Apps Configuration.