New "Reversible heat pump" base circuit has been added to both the heating and cooling libraries. This new heat pump uses a reversing valve to switch between heating and cooling operation.
For more info, see Reversible heat pump
It is now possible to select the whole control path for a selected control line with the shortcut “Alt + h”. The user first needs to select a control line and then press the shortcut.
The color of selected control line is also modified to make it more visible against the white background, e.g., the control path connected to tap flow is selected after selecting a control line in this path
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New "Reversible heat pump" base circuit has been added to both the heating and cooling libraries. This new heat pump uses a reversing valve to switch between heating and cooling operation.
For more info, see Reversible heat pump
It is now possible to give variants a custom name when doing a sensitivity analysis.
This name is also used in Pareto and for the generated model.
Labels and dynamic labels can be rotated on a canvas (with shortcut 'R').
Thermal storage anti-cycling volume determination will now be applied even if primary design heat flow and/or regime are locked.
Active mixing bypass valve can now be calculated correctly in situations where the primary pressure drop is zero.
Heat Pump Chillers will now report design power in Energy Report
Improvements regarding authentication expiration
No more premature termination of authentication session
Possibility to recover from expired an authentication session
It is now possible to assign manufacturer specific HIU’s and pump groups to the electricity meter boxes, for more info, see https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3089368564/Meter+boxes
The button to activate the Simulation mode has been moved from its original location to the top menubar of the Designer.
A canvas link can be renamed using the same tool to create one.
An HIU with embedded tap profile, for faster modelling, is added to the library.
What’s New introduction
When new features are introduced a small message will show on first use, highlighting the new features
Sensitivity Analysis and Partial Load functions have moved
New navigation to the Sensitivity variant input is available in the top menubar of the Designer.
New unit selections in Model Settings
Monetary Amount related units are introduced
Usage of these units will be gradually introduced in upcoming releases
Some minor bugfixes and technical improvements
New base circuit available that measures automatically all electrical consumption and production within the system
See https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3089368564/Meter+boxes#Auto-assignable-meter-boxes for more info
Absolute or relative input of the supply temperature of a heat exchanger for cooling
See Heat exchangers (HX) for more info
Fix for issues with dynamic labels
Insert of models with dynamic labels (on some base circuits) was broken
Adding dynamic labels (on some base circuits) on floorplans was broken
Fix for issue with zone assignment of complex BCs
Some models created between and , might have a deprecated diversity standard (based on DIN1988-300 v1) defined by default.
If that's the case for your model, the diversity standard will be automatically upgraded to the newer version (based on DIN1988-300 v2) when you open it again. This might influence (improve) your diversity calculations a bit.
Simulation results are no longer lost on any save. They are retained until a change is made that could potentially influence the results.
E.g. Adding labels, moving BCs, ... should no longer lead to loss of simulation results
E.g. Changing a parameter, pipe length, model settings... will still lead to loss of simulation results on save as they constitute changes that will affect simulation results.
Introduction of multiple x-axes in graphs: we display multiple x-axes for the use cases where different series with different x-axis units get shown together.
Showing general simulation details in the sensitivity status page, i.e., start date, duration, weather profile are now visible in the sensitivity status page.
Some minor bugfixes and technical improvements
Absolute or relative input of the supply temperature of a heat exchanger, more information: Heat exchangers (HX)
Non-operational temperature in setpoint profiles
in addition to day and night temperature, the temperature of non-operational period(s) can be configured
Some minor bugfixes and technical improvements
New layers functionality
Toggle Canvas information
Text
Zones
Control
Floorplan
Note: The Canvas Selection button has received a new icon and the previous icon now serves to provide access to the Layers functionality
This layers functionality replaces the toggling effect of some of the library buttons
Some minor bugfixes and technical improvements
New Zone Wall Temperature plot
New Thermal Storage Tank volume determination algorithms
Anti-cycling algorithm for the dimensioning of a storage tank in connection with a CHP (Combined Heat and Power) system, based on the Dutch ISSO publication 96 standard
Peak shaving algorithm for the dimensioning of a storage tank wih secondary HIU's, based on commonly used practices
More info: Thermal storage sizing algorithms
More BC's are now assignable to an electric meter box
production
header configurations
thermal storage
ambient exchange
change over
(ATES and HIU's will follow soon)
More info: https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3089368564/Meter+boxes
Some minor bugfixes and technical improvements
Some minor bugfixes and technical improvements
side navigation has been replaced by the new application bar
new start page for the designer with direct access to the model explorer and inspiration library
introduction of our new right sidebar
canvas selection has been moved to the right sidebar
current canvas name is visible (again) in the application bar
operation selection has been moved to the right sidebar
in addition to seconds, duration parameters can now also be entered in minutes and hours
heatpumps show calculated SCOP and SEER
heatpumps show start/stops per compressor stage if applicable
new Basecircuit "DesignValuesExtractor" to inject design values into your control logic
Some minor bugfixes and technical improvements
Added modulation delay parameter for Heat Pumps
Some minor bugfixes and technical improvements
The "Replace Base Circuit" operation (Ctrl+H) has been improved, connections are preserved in more situations
Some minor bugfixes and technical improvements
Thermal Storage base circuits now show warnings when invalid temperature regimes are configured.
Heat pump base circuits can now be configured with VSD and fixed speed compressor configurations.
Integral series per month now take into account the actual days of each month in the simulation period, instead of always using 31 days.
(Integral series per month are only calculated if the simulation period starts on the first day of a month)
Error and Warning counts now also shown after simulation
Some minor bugfixes and technical improvements
Error and Warning counts now added to dialogs:
System Check
Compute Design Flows
Optimise Components dialogs
Some minor bugfixes
Some minor bugfixes
Some minor bugfixes and technical improvements
New CIBSE CP1 based Managed Pressure Profile available
See https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3089367328/Select+pipes for more information
New Control BCs available for commonly used boolean operations (Updated documentation will follow)
And
Or
Not
Multi-color chart series highlighting
Hovering over a chart will highlight each featured series over the associated canvas element
Multiple series of the same element will lead to a multi-color highlight with each series color represented
This should allow for easier identification of the chart series on the canvas
Minor bug fixes
Improved search functionality. Next to tags and labels, it is now possible to search within labels and component names. Either on the current canvas or across all canvasses.
Some minor bug fixes.
Improve chart usability
Minor bug fixes
Major UI release 
Restyled Parameters
Collapsible Sidebar
Enhanced Charts for simulation results
Updated visuals
Extra export possibilities
Full screen view
Updated URLs
Minor sensitivity tweaks
Unit selection
We are proud to announce that the Hysopt software has been validated by the ISSO institute: https://over.isso.nl/nieuws/validatie-hysopt
New default values for zone volume and window U-value parameters
Minor bug fixes and UI updates
Minor bug fixes and UI updates