Delta - The Beginning of Many Algorithms

This release includes a number of quality-of-life improvements, bug fixes, and a few more algorithms. For SSPs, FLARES has been added. For POMDPs, HSVI2 and NLP have been added.

Gamma - Stable Foundation

Over the past year, the code has become more stable and streamlined. The SSP algorithms LAO* and LRTDP and the POMDP algorithm Perseus have been implemented and verified.

Moving forward, more algorithms will be included (FLARES, HSVI2, SARSOP, NLP FSCs, etc.) and we will change to a C++ object-oriented structure with extra C-style functions as basically wrappers.

Beta - Core Functionality

We provide working core MDP, SSP, and POMDP solvers in this release. Other algorithms (e.g., BPI and Perseus) and models (e.g., Dec-(PO)MDPs) should be straight forward extensions of the current library structure, and will be in the next release.

Alpha - Core Functionality

This release is to be used with the "pal_pomdp" project and others which only required the basic GPU solvers for MDPs and/or POMDPs.