Plutocalc Designer - Change Log


    Version 2.0 (07/02/2026)

    • New: user friendly form based web interface
    • New: export to formatted HTML
    • New: API commands: markdowntojson, jsontomarkdown and listmodelsinfo
    • New: API compatible with OpenAPI 3 standard
    • Improved: text mode now using Markdown format
    • Improved: overall error checking and pre-calculation validation
    • Improved: MCP (Model Context Protocol) descriptors and tools

    Version 1.6 (16/01/2026)

    • Improved security
    • Updated API
    • New Model Context Protocol server for AI models connectivity
    • Implemented credits purchase system

    Version 1.5 (19/04/2025)

    • First stable release

    Version 1.5 alpha (24/04/2020)

    • MBR design now considers peak flow for the membrane sizing
    • New flow units supported MLD and MGD
    • Handbooks updated, spelling errors fixed

    Version 1.4 alpha (08/12/2020)

    • New Reverse Osmosis and Nanofiltration CIP (Clean in Place) designer
    • New conversions for energy unitsNew internal piping library with commercial (ANSI B36.10 and B36.19) sizes and head loss calculation functions
    • New conversions for energy units
    • Fixed bug on oxygen saturation calculation at different salinity in biological wastewater treatment models
    • Fixed bug that caused some inputs to be overwritten in rare scenarios

    Version 1.2 alpha (21/08/2020)

    • New Excel user interface
    • New API call for listing the available models
    • New unit conversions
    • New model switch button for the web interface
    • Fixed bug in the CMAS BOD-NH4 model that indicated failed status for successful calculations
    • Fixed bug in the CMAS BOD-NO3 model that indicated the IR ratio was too low when it was OK

    Version 1.11 alpha (11/07/2020)

    • Updated API call list

    Version 1.1 alpha (05/07/2020)

    • Uniform default water quality for all wastewater models
    • Rounded output numbers for 5 significant digits. This 11.233245098434239487 will become 11.233
    • Fixed bug that assumed 'false' as 0
    • Improved unit conversion recognition, now supports power exponents '²' and '³'
    • Added additional server status checks.

    Version 1.0 alpha (03/07/2020)

    • Initial release. Hello world!
    • New model: Complete Mix Activated Sludge for BOD removal
    • New model: Complete Mix Activated Sludge for BOD and NH4 removal
    • New model: Complete Mix Activated Sludge  for BOD, NH4 and NO3 removal
    • New model: Membrane Bioreactor (MBR) for BOD and NH4 removal
    • New model: Membrane Bioreactor (MBR) for BOD and NH4 and NO3 removal
    • New model: Packed tower for Gas Stripping