====== OAR 3 ======
Status: [[https://github.com/oar-team/oar3/releases/tag/3.0.0.dev11|beta-dev11]]

Released date:  Nov 28, 2023

**OAR 3** a new version with better code architecture and new internal structure for scheduling.

===== Main changes and features =====
  * Same design architecture as OAR2 (based on high level components)
  * Low source line number of code, under 30K (core under 20kloc) 
  * New more scalable scheduler (based on new data structures) 
  * Python 3.7
  * Better development tools
  * Unit test

===== Roadmap =====
  * Production version (3.0.x): **1Q24**
  * Beta version: **4Q23** 29th 2023
  * Alpha version (3.0.0dev4): Mar 9th 2020 
  * Pre-Alpha version (3.0.0dev3): Nov 12th 2018
     * Version to evaluate robustness of core functions
     * UI needs some cleaning

**Note:** Delays in previous roadmap are due to works around [[https://batsim.readthedocs.io/en/latest/|Batsim]] a simulator of infrastructures and [[https://nixos-compose.gitlabpages.inria.fr/nixos-compose|Nixos-Compose]].

===== General documentation =====
See [[https://oar-3.readthedocs.io/en/latest/|documentation]]

===== Beta version =====
  * Plugins for scheduling
  * Temporal Quotas (time depend, recurrent and one-shoted periods)
  * Extended fair-share policies
  * Various bugs fix
  * Multi-target testing/dev: docker-compose, VM and Grid'5000 thanks to [[https://nixos-compose.gitlabpages.inria.fr/nixos-compose|Nixos-Compose]].
 

===== Pre-alpha version =====
  * All core features are written
  * Scheduling part ready at 90% (fully operational)
  * Need OAR2 installation procedure to function
  * Incomplete CLI, few options available
  * Not all design/architecture choices are fixed 
  * Nodes energy saving unfinished
  * Pingchecker unavailable
  * SendMail to user unavailable
  * Test coverage 70%-80%

===== Alpha version =====
  * Standalone procedure installation
  * Complete CLI commands
  * Test coverage 80%-90%
  * API REST following OpenAPI 3.0 specification
  * Extended Faire Share scheduling
  * Calendar scheduling
  * Additional customization points
  * Plugins mechanism for scheduling functions
  * Better scalability

===== Beta version =====
  * Version usable by our early adopters
  * Pre-production version
  * Documentation
  * Test coverage >90%