# \[pre-ANN\] RingStarProblems.jl ⸺ A RSPSolver

**URL:** https://discourse.julialang.org/t/pre-ann-ringstarproblems-jl-a-rspsolver/116992
**Category:** Package Announcements
**Tags:** package, announcement, jump, optimization, combinatorics
**Created:** [July 13, 2024, 8:01am UTC](https://discourse.julialang.org/t/pre-ann-ringstarproblems-jl-a-rspsolver/116992 "2024-07-13T08:01:10Z")
**Posts on this page:** 1
**Showing post:** 4

<div class="post-metadata">

### Author: ![K5Julien](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/k5julien/32/210626_2.png) [@K5Julien](https://discourse.julialang.org/u/K5Julien)
#### Post date: [July 17, 2024, 9:40pm UTC](https://discourse.julialang.org/t/pre-ann-ringstarproblems-jl-a-rspsolver/116992/4 "2024-07-17T21:40:16Z")

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# Patch release v0.1.6

✅ As mentioned in [issue #11](https://github.com/jkhamphousone/RingStarProblems.jl/issues/11) the solver is now optimizer agnostic!  
✅ Currently supports GLPK and Gurobi  
✅ Bug fixes  
✅ RingStarProblems.jl is not “an empty” package anymore, [see here](https://discourse.julialang.org/t/export-works-but-not-when-add-package/117030/7?).  
✅ some GitHub workflows successfully added (CI.yml, and TagBot.yml)

- Can not support SCIP, it [doesn’t support Lazy Constraints Callbacks](https://discourse.julialang.org/t/lazy-constraints-are-not-supported-by-scip-jl-while-jump-doesnt-mention-it/117110/)
- Solvers remaining to test: CPLEX and Xpress (Any feedback on these solvers is most welcome!)

According to [JuMP manual](https://jump.dev/JuMP.jl/stable/manual/callbacks/), the supported solver for Lazy Constraints Callbacks are:

- CPLEX, GLPK, Xpress, Gurobi

#### Next patch objectives: v0.1.7

- Continue document the package (use [DocStringExtensions.jl](https://github.com/JuliaDocs/DocStringExtensions.jl))
- CodeCoverage is only 18.72%, because plenty of files are at 0% mainly due to future functionalities that will be added  
 ![Code Coverage has lots of 0% files](https://global.discourse-cdn.com/julialang/original/3X/f/7/f7ef569270a62a79f8431b135da385216308c1a5.png)
- Continue trying to find collaborators!

#### Next minor release objective v0.2.0

- See enhancement feature: [RingStarProblems.jl #12](https://github.com/jkhamphousone/RingStarProblems.jl/issues/12)

#### Any feedback is most welcome 😃

I was able to `precompile` and `using` the package on another computer today, plus lauching the README Usage for the first time with this patch release, let me know if this is also the case for you ❤

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