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 # Release Notes
 
+## Release Notes 26.08
+
+### New Features (26.08)
+
+- New Multi-GPU PDLP: distribute LP solves across multiple GPUs using METIS partitioning; 2.5x–8.8x speedup on 8 NVLink-connected B200 GPUs
+- New free-format MPS parser with faster parse time on large models
+- New recursive RINS heuristic for MIP
+- New zero-half (odd-cycle) cuts for MIP
+- New vector length diving and Farkas diving heuristics for MIP
+- Routing: accept NumPy and pandas inputs in the routing Python `DataModel` in addition to cuDF
+- C API: extend getters with additional query functions
+- C API: automatic CPU/GPU memory selection for problem construction
+- gRPC: Python interface to the C++ gRPC async client
+- gRPC: allow TLS arguments in the Python gRPC async API
+- UBI10 (Red Hat Universal Base Image) container variant for FIPS 140-3 compliant environments; image tags use `-ubi10` suffix (e.g. `latest-cu13-ubi10`)
+
+### Breaking Changes (26.08)
+
+- Routing `DataModel` now defers GPU device construction to solve time; applications that accessed device-side data between `DataModel` construction and the solve call must be updated
+
+### Improvements (26.08)
+- Include Q matrix in Ruiz scaling to improve convergence
+- Exploit sparsity in Barrier's augmented system on problems with large second order cone constraints
+- Conflict graph improvements: incorporate non-binary rows and probing implications
+- Reduce latency in LP concurrent mode
+- Reduce memory footprint of PDLP
+- Reduce QP solver overhead
+- Improve Ruiz equilibration heuristic to also check column imbalance on QPs
+- Run feasibility-jump (CPU-FJ) heuristics at the root node
+- Papilo-based primal/dual crush in MIP presolve
+- Expose diving hyperparameters for MIP solver configuration
+- Unify threading model in the MIP solver using OpenMP tasks
+- MIP log cleanup and improved readability
+- Add short `cu12`/`cu13` Docker tag aliases
+- Remove `cuda-python` as an explicit dependency
+- gRPC: `objective_scaling_factor` is now optional in requests
+- gRPC: assign workers to distinct GPUs via `cudaSetDevice`
+
+### Bug Fixes (26.08)
+
+- Allow zero-valued coefficient updates in the LP Python model
+- Fix an issue in PDLP with cublas error capture and hang on infeasible solutions
+- Fix an exception in concurrent LP cleanup
+- Fix bug in barrier solver where cuDSS descriptors were being freed before their backing buffers
+- Fix a bug in MIP where the lower bound was incorrect when using a single thread
+- Fix a bug in MIP where nodes were lost in branch and bound
+- Fix a bug in MIP where root cut pass CPU feasibility-jump solutions were dropped by GPU heuristics
+- Add guard in MIP for huge bounds in bounds propagation
+- Fix a bug in MIP with incorrect GF2 presolve constraint addressing
+- Fix a bug in MIP in variable fixing for initial solutions
+- Fix issue in MIP in clique size computation and numerical issues
+- Fix an issue in MIP where cut generation did not obey the time limit
+- Fix an issue on QPs where maximization was not supported
+- Fix rotated second-order cone detection: make canonical quadratic constraint Q matrix in triplet form
+- Fix nonconvex quadratic constraint detection bug
+- Fix a bug on QCQP models that incorrectly threw an unsupported exception
+- Fix second-order cone index collision and incorrect quadratic constraint to cone conversion for rotated cone constraints
+- Validate MPS row type byte before enum cast to avoid undefined behavior
+- Fix destruction order and by-reference capture bugs in solve.cu
+- Fix route priority sort indexing in routing
+- Fix vehicle fixed cost accounting in fragment-vs-route deltas in routing
+- Fix routing min-vehicles bug
+- Fix libomp ABI incompatibility
+- gRPC: fix race condition in gRPC with log streaming
+- gRPC: cancel active jobs on delete
+- gRPC: terminate workers cleanly on server shutdown
+- gRPC: drain all remaining log lines at job completion in `StreamLogs`
+- Fix row-major layout not preserved when resizing routing capacity routes
+- Fix routing YAML best-results export
+- Fix double `va_start` undefined behavior in C API error handling
+
+### Documentation (26.08)
+
+- Align cuOpt documentation branding and update Doxygen configuration
+- Update cuOpt MIP positioning documentation
+
+### New Contributors (26.08)
+
+- @jolorunyomi
+- @cafzal
+- @Sylendran95
+- @jackthepunished
+- @fallintoplace
+- @arhag23
+- @divyegala
+
 ## Release Notes 26.06
 
 ### New Features (26.06)