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13.3.0 (2026-04-10)

Features

• introduce GasCompressor as a process unit (#1435) (41d12e9)
• process_solver: MultiPressureSolver for N ordered pressure targets on a shared shaft (#1452) (b1141f9)
• solver: add structured failure events to Solution (#1458) (7167fa3)

Bug Fixes

• individual_asv: stable recirculation boundary and correct success flag (#1451) (9ad1cce)
• outlet-pressure-solver: return failure when rate is outside chart envelope (6bf7397)
• recirculation-solver: return failure when rate is above stonewall at zero recirculation (#1455) (6bf7397)
• upstream choke crashes with RateTooHighError at max choke (#1446) (dec649f)

Documentation

• Update changelog for breaking changes in LTP/STP (#1433) (8abcc56)

Miscellaneous Chores

• clarify default values by specifying Field as Annotated (15b23ae)
• common filesystem for uv cache and venv (97cb8e3)
• deps: bump actions/download-artifact from 7 to 8 (500205f)
• deps: bump astral-sh/setup-uv from 7.6.0 to 8.0.0 (#1465) (359eb46)
• deps: bump pypa/gh-action-pypi-publish from 1.13.0 to 1.14.0 (b05a6d0)
• fix process error typing (90aebf6)
• fix ProcessSystem usage in asv solver (c95e425)
• fix run.py typing error (90aebf6)
• fix speed boundary (61af842)
• idea settings (90aebf6)
• improve punctuation and spacing of errors (#1456) (30b2b43)
• improve readability of asv solver code (#1407) (458b7c7)
• init mapping (7cb3d87)
• introduce process simulator (71ce3af)
• introduce process system id (e662bc1)
• introduce ProcessUnitId (7093ecc)
• introduce StreamPropagator (7aa0a8a)
• main: release 13.3.0 (#1409) (4054ed5)
• pandas stubs and some cli fixes (90aebf6)
• rename (90aebf6)
• rename ASVSolver to OutletPressureSolver (4b57ae1)
• rename OutletPressureSolver find_solution method (1e8269a)
• reportMissingTypeStubs (90aebf6)
• requirements.txt no longer needed (#1468) (f80dad1)
• typing fixes (90aebf6)
• update ASVSolver instantiation (7aa62c5)
• update npmrc cooldown (#1422) (6907ec8)
• update readme (90aebf6)
• upgrade dependencies for week 11. Auto-generated by devCalc (cbc2168)
• upgrade dependencies for week 11. Auto-generated by devCalc (#1416) (0b81cc1)
• upgrade dependencies for week 12. Auto-generated by devCalc (#1439) (66f62cb)
• upgrade dependencies for week 13. Auto-generated by devCalc (#1461) (97a4e55)
• upgrade dependencies for week 14. Auto-generated by devCalc (#1463) (90a14eb)
• upgrade dependencies for week 15. Auto-generated by devCalc (#1466) (b627030)
• use basedpyright (90aebf6)

Code Refactoring

• add get_configuration to Solution (#1459) (ec7c355)
• extract Configurations and SimulationUnitId from ProcessRunner to break import cycle (ec7c355)
• implement common asv pressure control strategy (#1413) (761f9dc)
• implement individual asv pressure control strategy (#1414) (2c29e85)
• introduce anti surge strategy (#1417) (711cb0b)
• introduce downstream choke pressure control strategy (#1424) (4c404c2)
• introduce FeasibilitySolver and StreamDistributionItem (#1457) (6e7b4ea)
• introduce individual asv anti surge strategy (#1418) (0d312d5)
• introduce OpertaingConfiguration as union of speed-, choke-, and recircconfigurations (ec7c355)
• introduce pressure control strategy interface (#1410) (da31be8)
• introduce upstream choke pressure control strategy (#1427) (898ad6c)
• move recirculation range calculation to CompressorStageProcessUnit (#1415) (7a6e276)
• rename Compressor to LegacyCompressor and GasCompressor to Compressor (41d12e9)
• rename Mixer/Splitter to Legacy, introduce single-stream ProcessUnit variants (#1449) (ea02f9a)
• use Compressor in process solvers, drop StageProcessUnit (#1447) (bed95cb)

Tests

• add unit tests for Compressor process unit (41d12e9)

Continuous Integration

• non-persistent credentials in github actions (#1464) (aca4b36)
• pin actions to sha (#1462) (e0fb878)
• remove false positive vulns from GHAS dependabot (84dd740)

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