Google's Operations Research tools: An open-source suite for optimization, including VRP and TSP solvers. It supports constraints like time windows and vehicle capacities
active 2025-03-09 → 2026-08-07 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 517 days from 2025-03-09 to 2026-08-07. Pushes: 761 total, peak 19 in a day. Pull requests: 208 total, peak 9 in a day. Issues: 169 total, peak 7 in a day. Comments: 236 total, peak 11 in a day. Stars: 746 total, peak 13 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| Mizux | 685 | 459 | 91 | 46 |
| gchatelet | 232 | 161 | 66 | 5 |
| lperron | 229 | 120 | 7 | 68 |
| dependabot[bot] | 32 | 0 | 22 | 10 |
| dourouc05 | 16 | 11 | 2 | 1 |
| djunglas | 14 | 0 | 0 | 10 |
| galabovaa | 8 | 0 | 5 | 2 |
| pet-mit | 6 | 0 | 0 | 6 |
| fobrs | 5 | 0 | 2 | 2 |
| kiijeonghoo | 4 | 0 | 1 | 1 |
| flomnes | 4 | 0 | 1 | 3 |
| rindajones | 4 | 0 | 0 | 3 |
| longhuihy | 4 | 0 | 0 | 2 |
| github-advanced-security[bot] | 4 | 0 | 0 | 2 |
| dy850078 | 3 | 0 | 0 | 2 |
| amm0x41r | 3 | 0 | 0 | 2 |
| constantinosTsirogiannis | 3 | 0 | 0 | 2 |
| cramo1207 | 3 | 0 | 0 | 1 |
| Jamesangshi | 3 | 0 | 0 | 3 |
| flokli | 3 | 0 | 0 | 2 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#5288Spira12026-08-07 17:35CP-SAT: uncaught std::out_of_range (absl::btree_map::at) in SolutionCrush::SetOrUpdateVarToDomainWithOptionalEscapeValue aborts the process during presolve
- Pull request#5290Mizux2026-08-07 16:27
- Pull request#5290Mizux2026-08-07 16:27
- Pull request#5213gchatelet2026-06-03 15:24
- Pull request#5210gchatelet2026-06-03 11:51
- Issue comment#5150gchatelet2026-05-26 14:22Integrate HiGHS and few minor fixes from Augmenta
- Issue#5174Mizux2026-05-15 13:15Support for .NET Framework 4.8
- Issue comment#5156lperron2026-05-09 18:08CP-SAT: UNSAT on SAT model using global_cardinality
- Issue comment#5156lperron2026-05-09 08:41CP-SAT: UNSAT on SAT model using global_cardinality
- Issue comment#4737lperron2026-05-09 06:47Pass solution hint to HiGHS from mathopt
- Issue comment#4737rma3502026-05-07 11:55Pass solution hint to HiGHS from mathopt
- Issue#5146Mizux2026-05-06 11:43CMake object library dependencies leak into exports
- Pull request#5153Mizux2026-05-04 16:08
- Pull request#5148Mizux2026-05-04 05:59
- Pull request#5148Mizux2026-05-04 05:59
- Issue comment#5147Mizux2026-04-30 10:59fix(routing): respect use_relocate_neighbors search parameter in GetNeighborhoodOperators
- Pull request#5145KasimVali22072026-04-26 08:09
- Issue comment#5140StefanBruens2026-04-17 19:04Broken usage of pybind11 "keep_alive" annotation
- Pull request#5126galabovaa2026-04-09 11:11
- Issue#5130Mizux2026-04-09 08:40ci: windows cmake presubmit too many symbols
- Pull request#5131Mizux2026-04-08 16:08
- Pull request#5131Mizux2026-04-08 12:52
- Pull request#5131Mizux2026-04-08 12:52
- Pull request#5131Mizux2026-04-08 12:52
- Pull request#5131Mizux2026-04-08 12:52
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 746 stars here means stars gained during the window, not the repo's star count.