erdembanak

Conflict due to package and package-extra when installing airflow

1

I'm trying to install airflow 2.4.2 with the constraints file provided by airflow ([file](https://raw.githubusercontent.com/invent-analytics/airflow-constraints/main/2.4.2/constraints-3.8.txt)) with the following command (I have downloaded the file): `uv pip install apache-airflow==2.42 -c airflow-constraints.txt --verbose`...

pydantic<2.0.0 installs pydantic=2.0b3 when prereleases are allowed

19

Using uv 0.1.3, when trying to install pydantic

HiGHS Infeasible when Presolve is Off

1

For some problems, HiGHS returns the problem as infeasible when CPLEX and CBC find the optimal solution (3.1108620188e+11). Since there were issues about presolve, I have switched off presolve but...

Issue-1259 - HiGHS returns wrong solution

4

Scaled the residual for numerical tolerance. Fix #1259 [https://github.com/ERGO-Code/HiGHS/issues/1259](https://github.com/peno64/HiGHS/commit/8094b42d92cba659aca1db33b11faa50ec6e0bdf)

In Gurobi and CPLEX, it is possible to use multiple objectives: https://www.gurobi.com/documentation/current/refman/multiple_objectives.html They extend LP format and do it similarly: https://www.ibm.com/docs/en/icos/22.1.1?topic=representation-multiobjective-optimization-in-lp-file-format https://www.gurobi.com/documentation/current/refman/lp_format.html#format:LP Gurobi also extends MPS: https://www.gurobi.com/documentation/current/refman/mps_format.html#format:MPS A good starting...