RelaxIS

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RelaxIS

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Product Description

RelaxIS is a stand-alone impedance analysis software.

It offers extensive capabilities in handling impedance data, plotting it in various different representations (Nyquist, Bode, custom) and transfer functions and fitting the spectra to equivalent circuits or physical models (including Autofitting capability).

RelaxIS also allows further evaluation of the fit results, e.g. creating custom plots of fit results vs. metadata (e.g. temperature) or by performing built-in Arrhenius- and VFT fits.

The included Circuit Simulator is also extremely helpful in teaching impedance spectroscopy by giving the ability to free define, plot and change simulated data of equivalent circuits or other models.

Product Details

Article No.:

840311

Included:

RelaxIS, Circuit Simulator, RelaxIS SDK

Support:

Inclusive

Operating System:

Windows (Vista SP2+)

Licenses:

Lifetime, Time-Limited

License System:

offline (USB Dongle) / online

Videos

Testimonials

"With RelaxIS I can fit my impedance spectra and extract conductivity values within minutes; instead of hours which was the case with another fitting software." Dr. T. Goulas, Loughborough University

"RelaxIS has been invaluable" R. Chukwu, University of Bremen

Detailed Feature Description

Feature List

Applications

Change Log

Security

Introducing RelaxIS 3 - Impedance Spectrum Analysis

Easy Data Import

RelaxIS supports binary data formats from many manufacturers of measuring devices. Files can be easily loaded by drag&drop into RelaxIS.

This skips the need to first export and reprocess the measurement data before it can be used. We continually develop this functionality, since it is an important factor in the increase of efficiency during everyday work.

RelaxIS manages not only raw impedance data, but also additional metadata like temperature, or DC bias for each spectrum. The data can be loaded from the file, or manually attached later. Metadata is used in various advanced evaluation features.

Data Visualization

Spectra can be plotted in different views like Bode or Nyquist plots as well as in various transfer functions like impedance or admittance.

Combined plots of multiple spectra and 3D graphs can be created, allowing for an easy comparison.

All graphs can be exported into image or vector graphic files or as raw data.

Equivalent Circuits

An arbitrary number of spectra can be loaded into RelaxIS. Each spectrum can be assigned to one or more equivalent circuits.

The ease of testing different models for fitting your data improves the ability to explore possible interpretations of the measured processes.

Besides all common equivalent circuit elements, RelaxIS also features common Transmission Line Models (TLM) and a custom TLM-builder.

Further user-defined elements can be added via the RelaxIS plugin system, that allows you to program your own models in C# or VB.NET.

Fitting

RelaxIS offers powerful tools to initialize fits, like painting shapes into the data or a genetic algorithm to assist in the initialization of the parameters.

In addition, it is possible to evaluate particular types of spectra fully automated using the fit wizard. These include conductivity measurements or battery spectra. Here, only minimal user interaction is necessary.

If larger data sets are analyzed, a batch fitting routine can be applied. It enables the evaluation of related spectra with only a single adjustment of the initial values. Depending on the application, the analysis of several dozen spectra per second is possible.

Auto Fit

Tired of manually adjusting parameter values until the fit works?

The RelaxIS Auto Fit feature does it for you. Simply choose a model, and the Auto Fit takes care of the rest.

Employing a powerful genetic algorithm optimized for use with EIS spectra, most models can be fitted very reliable out of the box.

For the very hard cases you can take full control over the parameters.

Distribution of Relaxation Times (DRT)

RelaxIS can calculate the distribution functions of time constants for your spectra. Multiple spectra can be selected at a time for batch processing.

In the DRTs you can perform peak-picking and integration and export these results for further use.

Try it out for free:

Online DRT Calculator

Result Evaluations

RelaxIS 3 allows you to further evaluate the model parameters you obtained from fitting to equivalent circuits.

The parameters can be plotted, recalculated and fitted as a function of metadata variables such as temperature or DC bias.

This allows for example the fitting of temperature dependent data to VFT- and Arrhenius-models, but extends the functionality of RelaxIS 2 by allowing other, arbitrary models as well.

Data Export

A fast and easy export of the data into other applications is essential. For this purpose, RelaxIS provides extensive possibilities to export the various data into easy-to-use data formats.

Besides the pure fit results, also data like spectra with fit curves, circuit images and all other sorts of plots can be placed into text files or the Windows clipboard.

Reports

In addition to the raw data export into text files it is also possible to create rich reports about the evaluated spectra.

These reports are fully customizable and can contain graphs, evaluation results or metadata about the spectra.

The reports are HTML based and therefore very flexible.

RelaxIS SDK

It is possible to create plugins for RelaxIS by using the RelaxIS SDK.

The plugins can extend the functionality of RelaxIS with new transfer functions, circuit elements, file formats and more.

The plugins can be written in C# or in VB.NET using either a third-party IDE or an integrated code editor.

RelaxIS Remote

RelaxIS Remote allows you the completely autonomous evaluation of measured data.

Data can be sent from external devices through either FTP or WCF connectivity to RelaxIS.

The data is then evaluated and stored based on settings defined by the sender. Afterwards the results can be sent back to the sender as raw data and/or reports.

Further tools

Besides the pure fits and circuit diagrams, RelaxIS offers numerous additional helpful tools. These include for instance automated fits of the fit results to temperature-dependent functions (Arrhenius / Vogel-Fulcher-Tamman).

A simulation software for calculation of circuit data, parameters and measurement conditions is a useful implement in research as well as in employee training.

Residual analysis or a linear Kramers-Kronig check assists in the evaluation of the quality of measurement data and fits.

The creation of user-defined circuit elements enables a very flexible extension of the existing range of functions to other, user-specific problems.

System Requirements

RelaxIS 3 can be installed on any computer running Microsoft Windows Vista (SP2) or above with .NET Framework 4.5.

The .NET Framework is pre-installed on most systems, or directly available directly from Microsoft.

Feature List

Robust non-linear fitting algorithms
Autofit-function for quickly fitting arbitrary models without parameter initialization
Import of arbitrary, column-based text files using an easy-to-use wizard
Native support of numerous impedance data formats
- hcDLL (rhd instruments GmbH & Co. KG)
- Nova RelaxIS Export Format
- Nova .NOX (Metrohm(c))
- .EPS (Novocontrol WinDETA(c))
- Novocontrol WinDETA(c) ASCII export file
- .ISM (Zahner Zennium(c))
- .MPR (BioLogic EC-Lab(c))
- .Z (Scribner ZView(c))
- .DTA (Gamry instruments(c))
- Digatron .CSV Export
- .IDF, .IDS (Iviumstat)
- .SPEC (Sciospec)
- Solartron Modulab ZView Export
- .PSESSION (PalmSens BV PSTRACE)
Arbitrary number of spectra per project
Storage of metadata for each spectrum
- Temperature
- DC voltage
- AC voltage
- Current
- Time
- Harmonic
- Concentration
- Area
- Thickness
- Two Free Parameters
Editing of the raw impedance data
Ability to use dielectric spectra, given in e.g. permittivity and with unknown cell geometry
Within one project, spectra can be assigned to various, arbitrary equivalent circuits
Circuit-Screening tool, that helps in finding suitable equivalent circuits
Visualization of the data and fit results in impedance, admittance or capacitance domains in Nyquist or Bode plots (customizable)
Side-to-side comparison of several spectra
Extensive library of pre-defined equivalent circuits
Simple derivation of initial values using the intuitive circle- or line-tool, or a genetic algorithm
Live preview of changes in the fit parameters
Test Fit function to preview the fit results
Batch fitting of several, related spectra
Fit wizard for automated evaluation of particular types of spectra (e.g. conductivity measurements)
Result Preview and Evaluation feature that allows the plotting and evaluation of the fit parameters as a function of metadata
- This implements Arrhenius- and VFT-Fits
- Includes various other models
RelaxIS Remote feature for autonomous evaluation and storage of impedance data
RelaxIS SDK that allows the enhancement of the basic features with plugins
- Plugins are for example new file formats or circuit elements (and much more)
- Integrated Code Editor to help with the developement of plugins
DRT (Distribution of Relaxation Times) Analysis
Linear Kramers-Kronig Test
Residual analysis and visualization
Circuit simulator for application in research and teaching
Extensive export functions for every data type
- Fit results
- Impedance spectra with fits
- Simulated spectra
- Graphs as images
- Images of Equivalent Circuits
Reporting feature that allows the creation of rich, HTML-based summarys of fit results

The software RelaxIS - Impedance Spectrum Analysis has for instance been used for the following applications:

Temperature-dependent conductivity measurements
Investigation of battery components
Investigation of the differential double layer capacity in systems with ionic liquids
Impedance spectroscopy of dye solar cells

A great advantage is the ability to read data formats of varying measuring devices as well as the elegant and fast evaluation of numerous series of measurements with many spectra.

3.0.20

3.0.20.14

Added missing sorting and filtering functions in the new unknown file import dialog
Added automatic saving of last format to unknown file import dialog
Fixed a bug that caused some unknown file format settings to not be loaded correctly
Added support for silent installations using the /S argument on the RelaxIS installer
3.0.20.13
New import dialog for unknown data files

Wizard-style interface for better clarity
Added import functions: Header lines, exclusion of individual lines
Method to import from sets of columns by specifying a repeating column count
Automatic determination of column roles from header texts
Ability to save import settings under names for future use (also available in interface functions afterwards)

New control scheme: Always use selected spectra

Available for many RelaxIS functions like fitting or model assignment
Functions are applied to currently selected spectra, instead of using the spectrum selection dialog
Mode disabled by default. Enable in Main ⮕ Settings ⮕ General ⮕ "Always use selected spectra..."

Fixed bug that prevented the Change Metadata dialog from working correctly
Fixed formula function parsing in i.e. the Result Preview dialog
Fixed Circuit Simulator Export file import to RelaxIS
Improved metadata import from DTA files
Fixed possible crash in DRT spectrum reproduction function
Changed menu layout in Circuit Simulator

3.0.19

3.0.19.18

Fixed embedded resource problem that prevented i.e. the styled text editor for graph elements from working.
3.0.19.17
Fixed problem with CSV files not being correctly imported via the unknown file dialog.
Support for Windows 7 has ended. It is recommended updating to Windows 10.
Spread Parameters can now selectively handle lower and upper limits
Added RelaxISWCF function to parse data (files) into spectra via the built-in file formats
CompreDriveRemote job evalutions can now use an Autofit for fitting
Included model and frequency limits in Spectra Export
MPT file format now imports RE/CE and WE/CE spectra if available
Increased number of rows shown in the Unknown File Dialog to 500
Introduced data value limit for file imports to avoid problems with invalid data points (e.g. a frequency value >10^50)
Fixed a possible freeze on multi-monitor setups with different DPI scaling
Fixed a possible deadlock (freeze) related to the spectrum list
Fixed wrong parsing of filenames from Outlook attachments
Fixed a possible crash on Autofit initialization
Includes update to Codemeter Runtime (v7.40) - Requires Windows 10!

3.0.18

New Feature: Create shapes from a selection of points

An alternative to the manual creation of semi-circles and lines for parameter derivation
After activation, drag a box around datapoints. RelaxIS will automatically create a semi-circle shape that fits these points
Hold Shift while dragging the box to create a line that fits the points

New Feature: Regular-expression based extraction of metadata from filenames during file import

Uses a regular expression defined in the setup dialog to extract values for metadata fields
The values are taken and assigned via named capturing groups
The setup dialog contains a designer that lets you test the regex against a filenames

Stacked plots now support automatic cycling through line and marker styles, when activated in a graph style
Create Circle/Line tools is now automatically switched off if an unsupported plot layout is selected
Fixed a bug that in some circumstances could cause spectra to not be saved correctly in EIS3 files
Fixed a bug that could cause RelaxIS to freeze
Fixed a crash if the recent file list contained empty entries
Fixed a crash when screenshots of the 3D Graph were saved multiple consecutive times
The normal installer should now be compatible with Windows 7 again

Note: Windows 7 support will be dropped as of 01.01.2022!
We recommend updating to Windows 10 before that.

3.0.17

For Windows 7 users, don't update via the integrated updater. Instead, download the dedicated Windows 7 installer from https://www.rhd-instruments.de/relaxis-downloads/

Note that Windows 7 support for RelaxIS ends on December 31st, 2021.

3.0.17.10 *

Fixed a bug that caused the Circuit Simulator to use the logarithmic setting of the Y2 axis for the Y1 axis.
Fixed a bug that prevented the legend text override when exporting the Result Preview graph as an image from being applied, if Auto-Update was active.

3.0.17.9 *

Reworked the model library and its integration in RelaxIS functions

Built-in models are now based on models used in literature and sorted into respective groups
Most built-in models have associated literature references
Model library has a new model list, that allows for a better overview over models and direct access to the references
When adding used-defined models, any group name can now be chosen, replacing the fixed User-defined and Favorite groups
Same model library is used in Model Screening, and model information are shown in results
Existing user-defined models will be moved to the new library automatically

Fixed a bug that caused the result parameters to not be shown in Model Screening results
Added description of spectrum type to datasource field of spectra read from Biologic MPR files
Resizing of the RelaxIS and CS3 main windows is now more responsive
Fixed possible crash in the "Move Spectra to between Projects" function

3.0.16

Important for Windows 7 Users: An error may cause RelaxIS to not start correctly on Windows 7 installations. We recommend using v.3.0.15 until this is resolved in a maintenance update.

Circuit Simulator Improvements

New series spectrum generation methods, that allows varying of multiple parameters
Changed noise generation method to now generate magnitude and phase noise separately
Noise generation now uses a fixed seed unless shuffled, to make generated noise consistent between updates

Added AIC statistic (for proportional weighting) to Info View
RelaxIS and CS3 main menus (ribbons) can now be minimized by double-clicking the tab-headers. Double-click again to disable minimization again.
Added method to perform Kramers-Kronig test on admittance data
Added the ability to assign additional metadata when importing unknown text files
Added Novocontrol DCD file format
Improved reading of Nova NOX files if Metrohm Nova is installed on the same PC
Fixed reading of Ivium files with galvanostatic spectra
Added option to disable automatic zoom-out of the Data Explorer plot
Fixed bug that prevented Circuit Simulator from closing the Trial Client
Improved RelaxIS startup speed
The L parameter on transmission-line models is now Fixed per default
Fixed possible deadlock when using WCF fit functions from RelaxIS plugins.
Added DRT Tutorial to Help⮕Tutorials

3.0.15

Maintanance Update 3.0.15.18

Fixed a crash during Autofits for certain parameter limits
Fixed graphs crashing when Engineering tick labels where active for certain value ranges
Fixed a crash when multiple instances of RelaxIS were started at the same time
Fixed a bug preventing formulas to be entered into certain tables
Improved metadata parsing for ISM files
Added Standard Error of the Estimate (SEOE) to the Info View
Added switch between absolute and relative significances to the Significance Tester

Maintanance Update 3.0.15.14

Fixed a bug that prevented pasting into some tables
Fixed FIPS compliance on some Windows systems
Fixed sending and exporting of selected spectra in CS3.

Added new fit option "Automatic local minimum improvement"

Tries to improve a fit result after it ended up in a local minimum
Uses additional fits with with "bumped" parameter values
May be disabled in Settings ⮕ Fitting

Added option to plot either tau, frequency or angular frequency in DRT plots
Added option to spread parameter names to other spectra
Added XLog, Y1Log and Y2Log options to report plot tags to enable or disable logarithmic axes scaling
Added new fields to Biologic MPR file format.
Improved copy & paste and keyboard behavior in Spectra Explorer table
Fixed possible crash when no active data was present in a spectrum.
Fixed a problem that could cause ribbon menus to become unresponsive in multi-monitor high-dpi setups
Fixed a crash related to clicking a cell for confirming a value edit in the Spectra Explorer

3.0.14

New Plugin Validation feature

NOTE: If you have plugins installed, you will see the validation screen on first program start
All new or changed plugins must now be explicitely activated before they are loaded by RelaxIS
On program start, a dialog is shown that allows you to mark the plugin files that should be loaded
Plugin files that don't have a checkmark will NOT be loaded
The selection can be changed from the Settings dialog (Plugins)

New DRT functions

DRT Overlays: Create overlays of DRTs of multiple spectra
Spectrum reproduction: Recalculate a spectrum from a DRT result for result validation
Lambda-Plot: Check the reproduction quality of different lambda values
DRT settings are now saved

New Model Styler feature

Create model images with additional styling, like colors and element descriptions
Further allows customization of cable thickness and color

The Mott-Schottky tool can now use results from Zarc elements
In the Merge Spectra function, identical frequency values may now be summed as well as averaged
Added some more buttons to the quick-access toolbar in the top-left
Data Manipulation plugins can now add spectra by overriding the "NewSpectra" property
The WCF-Interface now offers additional functions to calculate DRTs and spectrum reproductions
Fixed some program crashes and bugs

3.0.13

New Analysis Views: Kramers-Kronig, DRT ZHIT

Live updating analysis views can be displayed via Plotting ⮕ Create new Spectrum View
The views display the respective analysis result for the currently active spectrum
The analysis methods can be configured via dedicated settings dialogs

Added frequency range adjustment buttons to the Kramers-Kronig dialog
Improved graph image export with additional options

The size setting can now define the inner chart rectangle to e.g. export rectangular graphs more easily
It is now possible to set a fixed scaling factor for more reproducible image layout
Settings in the image export dialog can now be saved and restored

Graph axis tick labels can now have various different formats

Exponential: 1.234E5
Scientific: 1.234x10^5
Engineering: 123k

Added more settings to RelaxIS Graph Styles

Axis tick label number format
Graph scaling factor
Keep legend always open

The RelaxIS WCF Link feature now provides an interface for Auto Fits
Added option to disable hiding of parameter errors for fixed parameters
Improved reading of temperatures from Zahner ISM files
Fixed discrepancies in how parameters are named per default in different RelaxIS functions
Stored evaluations are now properly cleared when a new project is created
Fixed possible crash in Mott-Schottky dialog
Fixed crash in the Update Dialog when the downloaded installer could not be executed

3.0.12

Maintenance update 3.0.12.19

Fixed program crash when duplicate frequencies were present for ZHIT or DRT
Fixed bug that prevented the Tlmx (user-defined TLM) from being entered as a model
Fixed bug that prevented "Thickness" from being selected as X-Axis in Result Preview Update 3.0.12.17
Circuit Subtraction now supports formulas for parameter values

Formulas can reference existing values and metadata
Improves applying the subtraction to multiple spectra in the same operation
Available formula symbols can be viewed from the Info button on the dialog

Added hotkey for showing/hiding graph legends

Ctrl+L shows and hides the legend of the active graph
Activate a graph by clicking on it

Added new "Help" tab to the main menu that combines access to the manual and tutorials
Improved parsing of Biologic MPR files

Should provide better support for different used techniques
Spectra are split primarily by cycle number

The Info View now shows number of datapoints even if no model is assigned to the spectrum
Fixed possible crash when entering invalid model strings
Fixed resource overflow on continuous use of the Combined Data Plot
Fixed possible crash in the Batch Fit feature
Fixed incorrect placement of data annotations on high aspect-ratio data

3.0.11

New feature: ZHIT algorithm for data correction

Calculate the ZHIT transformation with variable smoothing and interpolation
Calculates |Z| from the phase angle
Intended for correcting e.g. slow drifts in spectra

Mott-Schottky dialog can now calculate C from CPEs/resistors
Added automatic generation of Brug-formula to Result Preview formula dropdown
Spectra can now be copy/pasted in the clipboard

Access feature by right-click in the Spectra Explorer
Spectra can be pasted into other running instances of RelaxIS
After copying you can change the active project in the current project folder and paste the spectra there

In the "Spectra Export" of the Export Center, you can now export spectra into multiple individual files
It is now possible to adjust the default parameter values and limits for built-in model elements

The feature is accessible through Main⮕Settings⮕Default Parameters
You can add model elements and set its default values

Added further drawing objects to all graphs

Right-click any graph, select Drawing Objects
Select Line, Rectangle/Ellipse or Text boxes and drag to create
Right-click on any blue mouse handle of an object to access styling options for this object

The Kramers-Kronig feature now allows creating new spectra from the simulation result
Improved some rendering issues in graphs
After an Autofit, the "Reorder elements by time constant" plugin is now automatically called for the spectrum

Intended to improve clarity of results when comparing multiple spectra
Feature can be disabled from the Setup dialog (Fitting tab)

On startup, error checking is performed on plugins to avoid program crashes
Fixed DPI scaling issues in the Kramers-Kronig dialog
Fixed scaling issues in the Model Builder that could lead to unusable Favorite/User-defined tabs
Fixed possible crashes with invalid values in numeric display bars
Fixed crash when a Multi-Autofit is canceled

3.0.10

CRITICAL: Please update 3.0.10.20 installations to 3.0.10.21 to fix a mathematical error in the Gerischer element that caused discrepancies between 3.0.10 and previous RelaxIS versions
New feature: Transmission-Line-Library

Offers an overview over available TLMs together with scientific explanation
Model Builder ⮕ TLM Wizard
New Generalized-TLM, that allows you to build a custom TLM easily from sub-circuits
New pre-defined TLM elements (see manual, or library description)

Tlmqo, Tlmqs, Tlmeb, Tlmenb
These will block use of plugins with same name!
This may break projects with models using circuit element plugins with the same abbreviation. Please contact This email address is being protected from spambots. You need JavaScript enabled to view it. if you have this problem!

New feature: Graph Styling

The style of impedance spectra plots in RelaxIS is now fully customizable
Main Menu ⮕ Plotting ⮕ Edit Graph Style
Separate colors for the different series can be defined, as well as fonts and line styles
Styles are handled in a style library, that allow you to create and share styles

Improved coloring of fit parameter errors

The percentage when the color gradient reaches deep red is now configurable in the Settings
Fixed parameters now don't display an error value
Parameter values of zero now display a gray background since no relative error can be calculated

Multi-Auto Fits now work on multiple spectra (Settings⮕Fitting⮕Multithreading Lists Lists) simultaneously to improve speed
Added warning popups when fit stopping critera were hit. These can be disabled in the Settings dialog.
Added "Tan(delta) dielectric" axis value, to conform to IEC 60050
Changed calculation of "Tan(delta)" from tan(d) = Z'/-Z'' to tan(d) = Z'/|Z''|
Added PalmSense pSession file format
Added support for new versions of the Biologic MPR format
When exporting graphs as image, invididual series can now be excluded from the legend
Graph axis labels can now be divided by a constant factor through the Graph Layout Options (right-click a graph)
Fixed a bug that prevented loading of EIS3 files from network shares
Fixed a bug that could cause duplicate datapoints to be read from Nova RelaxIS Export files
Fixed a problem that could cause a crash when using the Frequency Change feature
Fixed problem that could cause the controls in the Kramers-Kronig dialog to be
Fixed the problem, that the RelaxIS deinstaller did not remove its entry in the list of installed applications
Updated included Codemeter Runtime to version 6.70

3.0.9

New feature: 3D Plots

Create customizable 3D plots, with free rotation
Allows assignment of both impedance and metadata to each axis
Surface plots can be created in an external browser window

New feature: SVG export for graphs

All (2D) graph can now be exported as SVG vector graphics
The SVG files can be edited using third-party tools or displayed in a browser
Allows freely scalable graphics

New feature: Mott-Schottky Analysis

Automated workflow to find donor density and flatband potential from dc voltage dependent spectra
Allows analysis of multiple datasets at the same time

Biologic MPR file import now handle multiple cycles and measured CE impedance better
Novocontrol .EPS file import now handles newer versions correctly
2D Graphs may now have a title that can be set using the Graph Layout options
The Trial Client can now be started only in a single instance and communicates better with RelaxIS
Fixed a problem of the License Manager with newer Codemeter dongles
Various bug fixes

3.0.8

New Feature: Circle Visualizer

Access from Plotting⮕Create Spectrum View⮕Circle View
Creates a visualization of semi-circles for e.g. R-(R)(C)-(R)(C)-P type models

New Feature: DRT Polarization Remover

Subtracts a low-frequency polarization from data before calculating the DRT
Avoids high-time-constant peaks due to infinite rise in the low-frequency domain

Added styling options to the Circuit Simulator
The duration that datapoints are shown on click in charts can now be adjusted from right-click⮕Graph Layout Options
Datapoint annotations can now be closed by clicking
Fixed wrongly auto-generated code in the SDK Code Editor
Fixed problem with a wrong settings page being shown in the Change Metadata dialog
Fixed possible crashes
Includes new Codemeter Version 6.60
Fixed some scaling issues of the GUI

3.0.7

Improved Combined Data Plot

The Combined Data Plot was redesigned to offer more options and customizations
It can now include both data and fit curves
It can operate in a "live" mode that always displays the currently selected spectra (default)
More graph layout options were added (e.g. symbol size, line width)
Extended formatting of the automatic legend (please see manual)
Multiple CDP windows can be open simultaneously

Added quick-info status bar to the Parameter Explorer

Calculates values for certain elements or element-combinations
If resistor is selected, the conductivity is calculated (specific conductivity if Area and Thickness are defined)
For a combination of R and C or CPE both the time-constant and equivalent capacitance (from Brug-formula) is calculated
Values can be copied to clipboard through right-click context-menu

Added option to always display certain metadata fields, even if columns are hidden and column is empty (Settings⮕Display)
If an unexpected exception occurs it is now possible to continue the execution of RelaxIS

You are given the option to either shutdown RelaxIS immediately or continue
Continuing happens at own risk, because RelaxIS is in an undefined state and may not function properly
Continuing is only intended to offer possibilities to save the current work in a controlled manner and then restart RelaxIS
Consider saving into new EIS3 files instead of existing ones, in case data is corrupted due to the undefined state!

It is now possible to directly import eps'/eps'' and Mod'/Mod'' data from unknown data files (spectra are marked as eps-only)
Fixed crash in Model Screening while a test fit was displayed in Data Explorer
Fixed crash a when the Move Spectra buttons were used while the spectra list was empty

3.0.6

SDK Breaking Changes

Some plugins will not be loaded anymore until certain changes to the code are introduced

Affected plugin types: CircuitElement, TransferFunction, AxisValue, MultifitModel
Plugin functions are required to now return a "Complex" structure instead of a Tuple
Please refer to the SDK Documentation for detailed implementation help for the changes

Release Notes

Improved the Kramers-Kronig-Test

The KK-test by default now employs a complex fit included a series capacitor and inductor as of J. Electrochem. Soc. 1995, 142, 1885-1894

Helps to handle spectra with e.g. polarisation or diffusion effects better

Added automatic determination of optimal number of time constants as of Electrochim. Acta 2014, 131, 20-27
Updated the spectrum layout to the default RelaxIS style
The Shapiro-Wilk-Test results can now be accessed in copyable form

Numeric input boxes and tables (Gridviews) now support input of numbers with magnitude modifiers

E.g. 1M ⮕ 1E6, 12n ⮕ 1.2E-8
Also possible: 1.52E-5M ⮕ 15.2 (=1.52 * 10^-5 * 10^6=1.52E1)
Modifiers from 1E-24 ⮕ 1E24: y, z, a, f, p, n, u or µ, m, %, k, M, G, T, P, X, Z, Y
Note: Exa (10^18) is X, not E to avoid confusion with exponential notation

Implemented a new file format for Metrohm Nova ⮕ RelaxIS export files

Custom export format implemented in upcoming version of Nova
Supports export of both impedance data and metadata

Implemented Solartron Modulab ⮕ ZView file format (wasn't compatible with default ZView format)
Improved automatic splitting of Biologic .MPR files
Added duplicate filtering when importing Nova NOX files
Program-wide change of the name "Group" to "Model" to reduce confusion (no change in functionality)
Circuit Images can now be copied to the clipboard with transparent background
Fixed problem that caused RelaxIS to further lock up when encountering an unhandled error

3.0.5

New Feature: Result Library

Ability to store results of various features on project level
Results can be displayed (read-only) at a later time
Designed to be independent of any plugins
Certain results or settings can be reused to perform new evaluations (e.g. set current Result Preview settings from stored Result Preview)
Supported evaluations:

Result Preview
Result Evaluations
Residual Analysis
Multi-Spectrum Fits
Kramers-Kronig-Test
DRT
Individual Fits
Combined Data Plots
Circuit Screening
Parameter Influence Test
Bootstrap Error Estimation

Results can be exported to and imported from sharable XML files
Note: To store the results, the EIS3 database format was updated. Old EIS3 files will be updated automatically to the new format. This creates MigrationBackup files for safety at their old locations.

New Feature: Fits with shared parameters (Global Fit)

Fitting of multiple spectra simultaneously
One or several parameters can be shared, and thus apply to all spectra equally
Application: Situations where you expect certain parameters to not change during e.g. a measurement series
Globally fitted parameters are marked as "Global" in the Parameter Explorer
Main Menu⮕Fitting⮕Global Fit

New Feature: Multi-Spectrum Fit

Similar, yet more advanced than the Global Fit
Multiple spectra are fitted with a new model that can incorporate spectra's metadata as independent variables
Application (e.g.):

Creating models with shared parameters and different equivalent circuits for certain spectra
Calculate parameter values from Arrhenius and thus have Arrhenius parameters as global fit parameters

Models are plugin-based and need to be programmed (currently no models are included directly)

Improved Graph Layout Options and Scaling

Added Graph Layout Settings dialog (right-click on any graph for access)
Added dialog to set precise axis limits
Graphs now support stepless scaling (scaling factor in Layout Settings dialog)
Scaling is by default applied when exporting graph images, which allows exporting high resolution images with correct proportions
Graph axes and legend now support advanced formatting

Bold/Italic/Underline/Strike-Through font, Sub- and Superscript, Symbols
Apply formatting in the Graph Layout Dialog with Editor

You can now draw annotation objects on the graphs (arrow with or without textbox, text supports advanced formatting)
Objects only show mouse-handlers if mouse is near the object

Bug Fixes

Fixed loading projects by double-click from Windows Explorer
Fixed default plot preset for new installations
Fixed a problem, that caused the Trial Client to shut down even if other RelaxIS instances were still open
Disabled Import of .PAR files due to non-reproducible, yet required data filtering step. Please use Versastudio .Z Export instead.
Fixed some possible program crashes

3.0.4

Codemeter License Improvements

RelaxIS should no longer freeze when the Wibu license is no longer accessible (e.g. broken network connection, Windows stand-by...)
Instead a warning message should allow return to working condition, once the license is accessible again
ONLINE USERS: Please allow for a delay up to a minute until the License Dialog is shown (time-out delays of connection)! RelaxIS will be frozen during this time.
After reconnecting the dongle, please wait for it to initialize (few seconds) before clicking Retry

New Auto Save function

In steady intervals the currently loaded project folder is automatically saved
Either in user folder, or alongside original files
This will not overwrite original file

New Temperature dependent fitting models in Result Evaluation

Linearized Arrhenius, logarithmic VFT
Uses new pre-transformation feature in Result Evaluation Model plugins
Linearization is performed automatically, you still just plot e.g. sigma vs. T in Result Preview

More thorough fit algorithm settings

Settings dialog allows selection of "Automatic Settings: Thorough"
Slower than previous Automatic Settings, but better convergence properties
Previous (Quick) mode still available (and used by default)

Customizable Fitting Procedures

Settings dialog allows creation of custom fitting procedure
Set up multiple consecutive fit algorithm steps
Allows creation of procedure similar to automatic settings
Replaces previous Levenberg-Marquardt and Nelder-Mead settings

Fixed the "Refine n-times" function
Spectrum Views:

Views can now save default settings
When e.g. Residual View settings are saved, new residual view windows use these settings
Added Export function to the Residual View

Fixed crashes when a spectrum containes no (active) data
DRT:

Peak Picking now uses a specific minimum peak height setting instead of "x times median"
Fixed possible crash when too many peaks were picked
New integration areas are now created in the middle of the chart x-axis instead of the middle of the dataset

Electrochemical Calculator:

Some settings, like units are now saved
Added option to keep the calculator window topmost

Added option regarding exported frequencies to the Spectrum Exporter
Improved the Changelog display in the Update dialog
Some common popup tips can now be disabled in the Settings dialog
Various bug fixes

3.0.3.7

Fixed a bug that prevented the "Hide Columns" button from working
Added some clarification to the Batch Progress dialog
Fixed possible crashes when files with too long paths were used
Fixed possible crash related to plotting spectra

3.0.3.6

New Feature: Spectrum Views

Under Plotting⮕Add Spectrum View additional plots and information windows can be displayed
Additional plots (e.g. Bode/Nyquist), Fit Information, and residual plots can be shown (replaces prev. residual analysis feature)
The windows can be docked, and persist after RelaxIS restarts

Previously selected plot preset and transfer function now persist after a RelaxIS restart
RelaxIS executables are now digitally signed to improve the installation process
Added features to enable handling of dielectric data, which can be given in the permittivity without a cell constant
The Export Center now allows selection of a number format
Improved handling of parameter limits in the Auto Fit and slightly improved the default settings of the Circuit Screener
The size of the circuit display in the Parameter Explorer window can now be adjusted
Reworked the "Change Frequency Range" dialog to lessen confusion
Several bugfixes

3.0.3.5

Fixed a problem that prevented the 3.0.3.4 update to install correctly on some systems
Fixed and improved the IviumStat file format

Improved file type detection
Now reads Data Options: Temperature, NominalCharge (⮕Free Variable)
If file contains multiple spectra, the start time relative to the first spectrum [s] is assigned to "Time"

Improved Autofit value ranges for some parameters
The Autofit "Advanced search" now automatically adjusts the ranges for fixed parameters

3.0.3.4

New Feature: DRT (Distribution of Relaxation Times)

Calculate the DRT for multiple spectra/basis functions
Peak picking and Integration
Data Interpolation for higher resolution

Added "Zarc" circuit element

A parallel combination (R)(P), expressed in terms of Resistance and time constant
Gives better access to real capacitance as C = tau/R

Result Preview can directly plot average Real/Imaginary Parts

Intended to facilitate single-frequency measurements

New Descriptive Statistics model in the Result Evaluation
Result Evaluation now shows relative fit errors
Set Axis Texts dialog for the Result Preview graph now can access a list of special characters (e.g. greek letters)
Added buttons to move selected spectra in the Explorer up and down

Hold shift to move spectra to end of list

Improved some details of the Auto Fit, mainly automatic ranges
New buttons in the Residual Analysis window allow switching the active spectrum
Improved chart borders to avoid axis titles to be placed outside of the chart
SDK Changes
FileFormat plugins can access a SourcePath property, that contains the source file path, if the data source is a file
Referenced assemblies for plugins can now be placed in a "References" subfolder of the Appdata\Plugins folder in order to be resolved correctly

3.0.3.3

Added IviumStat file format
Added support for Drag&Drop from Outlook attachments
Graph objects (circles, lines) now show further information
The displayed weighted SSR in the Fit Information dialog used incorrect weights which could result in a wrong value.

3.0.3.2

New feature: Parameter Influence Test

For the current parameter values of the active spectrum and the current transfer function, parameter influence is calculated as function of frequency
"Influence" defines, how much the circuit immitance value is changed at the given frequency, when the parameter value is changed by a small amount
Shows, in which frequency range certain parameters influence the spectrum

Spectrum Aggregation improvement

Renamed to "Combined Data Plot"
Now allows recalculation of plotted values

Either by formula
Default transfer functions now implement normalization to Area and Thickness. This allows direct calculation and plotting of e.g. the permittivity instead of complex capacitance (see also: Changes to the SDK)

Legend format now support the tag #G to display the spectrums group in the legend

Added VersaStudio file format support
Added "Change Metadata: Values from List"
Slightly improved Conductivity Wizard's handling of bulk semicircles
Fixed possible crash during RelaxIS startup
Fixed pasting of metadata from Clipboard
Fixed a possible crash of the FitWizard
Fixed bug that could prevent use of the Browse for references button in the SDK Code Editor
Further bug fixes
SDK Changes (old plugins should still work, but may need to be recompiled!):

DataManipulation plugins can now override Property DoesChangeData to indicate, that they do not change the underlying data (thus not invalidating any fits)
TransferFunction plugins can now override Properties: CanBeNormalized, NormalizedSymbol, NormalizedUnit and Function NormalizeValue to return the geometry normalized value, e.g. permittivity from complex capacitance. This is used in the improved Spectrum Aggregation (Combined Data Plot) feature

3.0.3.1

New feature: Fit Curve extrapolation:

The fitted curve is displayed over a larger frequency range, adjustable in the Settings dialog

Settings in the Export Dialog can now be saved
New metadata field: Concentration
Improved integration of the Trial Client
Trial Client now includes some automated tests
Various bug fixes

3.0.2.15

Fixed a problem with switching transfer functions
Improved RelaxIS startup speed
Minor bug fixes

3.0.2.14

Fixed a problem that could cause the frequency selection in the Circuit Simulator to be invisible
Plugins are now also loaded directly from the .XML files created by the SDK Code Editor
Several minor fixes and improvements to the UI
Backend changes

3.0.2.13

Fix of the Trial Installation procedure during the RelaxIS installation

3.0.2.12

Fixed bugs loading Nova2 NOX files
Batch fitting now can ignore fixed parameters
Added setting to only spread fixed/non-fixed parameter values and limits
Fixed a problem when thinning out data in the Kramers Kronig test
Added the Sciospec .Spec file format
Better integrated the Trial Client into RelaxIS and the installation process. Manual edit of the server search list is no longer required.
Further minor fixes and additions

3.0.2.11

Updated the Codemeter Runtime to version 6.30d

The Trial Client is installed with RelaxIS and can be started from the splash screen
Drawn lines in the Data Explorer now show their angle
The Result Preview Pivot now shows additional statistics for each series
Fixes for several file formats (Nova NOX, Biologic, hcDLL)
Better exception handling in several plugin types
Fixed a possible crash when resetting window positions
Plot and Circuit Image tags in Report templates will save images as files instead of embedding them, when called as e.g. NYQUISTPLOTSI (note the SI)
The Battery Wizard now handles exclusively inductive spectra better

3.0.2.10

Added new weighting mode: By Magnitude
Added new axis value: Tan(delta)
Added more calculation options for unknown data files
Added new version of the Electrochemical Calculator
Newer PEIS biologic files can be read
Added weighting by proportional/value to the Result Evaluation
Improved autofit initialization when spectra contain negative Z' values
The main ribbon now shows tooltips for all functions
Various fixes of bugs and crashes

3.0.2.9

Fixed a crash in the Genetic Algorithm, e.g. when using the Circuit Screening Tool with unassigned spectra
Fixed a possible problem that caused Codemeter to not recognize the license

3.0.2.8

Added a new Wizard to create code for Circuit Element plugins to the SDK Code Editor. The Wizard is similar to the Circuit Element Creator in RelaxIS 2.
Added a new tool to apply parameter values to spectra from a simple list of values.
The Autofit now takes fixed parameters and manually set parameter limits into account.
The Aggregate Spectra tool now has a longer color list to distinguish between more spectra at the same time.
Fixed some possible program crashes.
Fixed some minor bugs.

3.0.2.7

Fixed a bug that caused the Result Evaluation feature to become unusable for consecutive fits

3.0.2.6

New Feature: Result Preview Pivot Table. It collimates statistics like minima and maxima from the different series that are currently plotted
Added a plugin that allows reordering of parameter values from (R)(C), (RC), or (Hv) type subcircuits by time constant. Helpful after a multi-Autofit was performed on a chain with multiple of these subcircuits.
Fixed a problem with importing NOX 2.0 spectra
Groups in the Result Preview are now ordered the same as in the Spectra Explorer
Ticking the checkmark on a group-node in the Result Preview Y-Selection now activates the first parameter in the group. Unticking it deactivates all parameters of that group.
When importing text files it is now possible to import columns containing "Z'+Z''i" entries, e.g. 3.2+5.2i
A lot of bug fixes and quality of life improvements

3.0.2.5

Initial parameters in the Result Evaluation dialog can now be spread to other fitting groups by using a right-click context menu
The Result Evaluation now calculates and shows R²-values
Fixed some bugs and possible program crashes

3.0.2.4

Fixed a crash related to sorting spectra
Fixed a crash when exporting circuit images
RelaxIS no longer switches to the foreground when a tooltip pops up

3.0.2.0 - 3.0.2.3

PLEASE INSTALL THE CODEMETER RUNTIME, AS IT WAS UPDATED TO A NEW VERSION!

New Feature: Auto-Fit

Automatic one-button fit of a spectrum to a selected model
No initial parameters required
Quick & Thorough Mode, the latter is more reliable in the automatic initialization
Can also be performed for multiple spectra at a time
Hotkeys: F5 + F6

Revamped the advanced Batch Fit

Simplified the interface to avoid confusion with the selection of spectra and the order of their processing
The old Batch Interface is still available under "Legacy Batch Fit"

Added ability to add user-defined Hotkeys through the Setup Dialog
New Feature: Duplicate Search

Allows searching the current project for duplicate spectra based on selectable identifiers like same data, or same metadata
Duplicates can be selectively removed after the search

Spectrum Metadata can now be edited directly in the Spectra Explorer

Hidden columns can be temporarily shown by clicking on the "7 columns hidden" field in the Spectra Explorer, to enter previously unused metadata

The Result Evaluation feature can now be instructed to only fit the data that is currently visible in the Result Preview graph (e.g. when zoomed in) to allow quick data selection
The Circuit Screening tool now allows selection of active circuits by group
Improved performance of the Circuit Screening tool
Parameter Errors are not shown anymore, when the fit is not up to date, to avoid confusion about when they are valid. The old behaviour can still be activated in the Setup Dialog
You can now zoom individual axes of graphs by using the mouse-wheel while on top of the axis (does not work when scaled proportionally, e.g. in a Nyquist plot)
Improved the export of circuit images to allow adjustment of the scaling for improved resolution, and fixed some rendering problems
You can now directly Drag&Drop whole EIS3 Project files into RelaxIS
Added the calculation of the cell constant through standard measurement values to the Electrochemical Calculator
Fixed crash issues reported by users
Fixed various minor bugs

3.0.1.12

Unused columns are now hidden in the Spectra Explorer as soon as the column contains data, it is shown automatically
Improved the "Change Metadata" dialog with more options, e.g. rounding and changing by formula
Added a new wizard: The Semicircle Wizard

The wizard can fit multiple semicircles in the impedance, admittance or capacitance plane, together with additional features like inductance and polarisation.
Please note: This feature is still in Beta status.

Improved responsiveness of the UI
Added magnitude and phase angle to the Spectrum Exporter
Added the ZPlot2 file format
Added Restart RelaxIS" button to the Code Editor
Reduced the size of bubble popups and added ability to close them immediately by clicking
Added "Accept Circuit" button to the Circuit Screener

3.0.1.11

Please install the Codemeter Runtime during the installation, as it was updated to a new version in this release.

Equivalent circuits can now have custom titles

Titles are appended to the circuit in curly brackets
A new text field was added to the circuit builder for the title
Allows using the same equivalent circuit multiple times in a project
CAUTION: Projects that contain titled equivalent circuits cannot be opened in previous versions of RelaxIS!

The text representations of the series in a graph can now be changed when saving the graph as an image
CDF plots in the residual analysis, Kramers-Kronig-Test and Bootstrapping error calculation now contain results of a Shapiro-Wilk-Test for normal distribution of the data
Fixed a bug in the calculation for the R² values in the CDF plots
Added the ability to change frequency limits to the DataManipulation plugin (specifically to the ImpedanceSpectrum_Fitted class)
Added missing metadata options to the Unknown File dialog
Fixed a wrong default file extension in the License Manager

3.0.1.10

Please note: Changes to the RelaxIS SDK may cause your plugins to not load properly. You may need to recompile and/or adjust the code to fix them.

Added new DataManipulation plugin type to the SDK

Allows freely adjusting any aspect of a spectrum's data
Can be accessed through ribbon buttons

Added free designation of axes values to the Circuit Simulator
Fixed possible crash on start-up related to docked windows
New Hotkeys: TAB, Ctrl+TAB to select the transfer function and the plot preset
Duplicated the transfer function button in the Plotting tab of the main ribbon
Added more Quick Access buttons to RelaxIS (top-left corner)
Additional bug fixes and minor adjustments

3.0.1.9

Added Raw Data Export functionality to all graphs (accessible using the right-click menu in the graph)
Added Exclude All/None button to the Export Center
Added Quicksave/-load buttons to the Spectrum Selection dialog
Fixed a bug that could cause new, unsaved project folders from becoming unsavable
Diversified status messages in the legacy conversion dialog
More concise display of fit parameters in the Parameter Explorer
Numeric values are copied at full precision from grids
Additional bugfixes and adjustments

3.0.1.8

Fixed a critical bug that could cause error values for fit parameters to be higher than expected
Added new Result Evaluation models
Fixed a bug that may have prevented new plugins from compilation in the Code Editor
The Zahner import now supports Multi-Sine spectra

3.0.1.7

The warning dialog of the Eraser tool can now be disabled for 60s after the use
Spectra can now always be copied or moved to the Unassigned group, using the dropdown menu in the ribbon
The DATASOURCE tag in reports now works again
The Delete key now always works in the Raw Data Edit dialog
Fixed a problem where some BioLogic files could not be imported
Miscellaneous bug fixes

3.0.1.6

Minor bug fixes
Some updates to the documentation

3.0.1.5

Added three new metadata variables: Time, Harmonic, Free Variable 2
Removed individual metadata tags from reports, added new METADATA|Variable=xy tag
Added checks to prevent problems with deleted/moved databases
Added Log-Interface to plugins (AddLogMessage)
Enhanced contents of the bug-reports
A lot of minor and major bug fixes and quality-of-life changes
Fixed some potentential crashes

3.0.1.4

Fixed a bug that prevented the Result Evaluation feature from working.
Window parts (graph, settings) in Result Preview can now be resized
Some High-DPI adjustments.

3.0.1.3

Fixed some problems related to database locks.
Tutorials are now copied to your userfolder on program launch to avoid privilege issues
Fixed a bug that caused RelaxIS to be minimized when windows were redocked to the interface
Added a warning about plugins that failed to load

3.0.1.2

Implemented various Hotkeys. See the mapping here: https://www.rhd-instruments.de/relaxis/Hotkeys.png
Implemented Datapoint Eraser tool to quickly delete single datapoints (as known from RelaxIS 2.x)
Added two Tutorials that explain the basic functions of RelaxIS step-by-step.
Drastically improved the support for High-DPI displays, including high-quality icons, and UI rescaling.
RelaxIS now checks if databases are opened in another instance of RelaxIS and warns accordingly.
By default the phase angle is now calculated for each transfer function individually instead of always for the impedance. You can access the impedance-phase angle by selecting another axis value manually.
Added various clarifications in the UI
A lot of quality of life fixes related to the UI
Fixed a lot of bugs and crashes

3.0.1.1

Important: If you have PLUGINS you need to update them in order to use them in 3.0.1.1 due to changes in the SDK. Refer to the manual and SDK documentation.

New feature: Filesystem Watcher for RelaxIS Remote.

This can watch a directory for new files and send them to a RelaxIS Remote Node

Fixed bugs reported in the Bugtracker
Improved Welcome Dialog to display recent project folders
Added calculation of errors to the result page of the Result Evaluation dialog
Revised the manual (typos etc.)
Improved import speed of .EPS files when they contain harmonics! ;-)
Fixed a bug where RelaxIS could fail to import contents of .NOX files
Disabled the Baseline Correction feature temporarily due to unreliability
Massively improved the icon quality
Internal improvements

3.0.1.0

RelaxIS:

RelaxIS now contains a Manual for both the main program as well as the SDK
IMPORTANT: Redefined the Warburg Short and Open formulas to exclude the tau parameter from the Zw parameter!

See Settings⮕Plugins⮕User Elements for the new formulas. This will affect previously saved fits.

Expanded the Fit Information dialog with more in-depth information
New CDF Plots for normal distributions (residuals, Kramers-Kronig, ...)
Result-Preview dialog now allows the automatic recalculation of errors when the Y-values are changed with a formula
Improved the Genetic Algorithm
Added a confirmation dialog when deleting spectra
Redesigned the default report template with less grisly colors and embedded images
Added Reset Window Positions button
A lot of bug fixes and adjustments. You want to install this update. Circuit Simulator:
Added AC Voltage simulation features

3.0.0.5

Expanded RelaxIS Remote to accept connections without FTP server through a WCF interface
Moved the CS3 Link interface to the SDK to allow third party usage
Fixed bugs in some exporters
Improved the Result Evaluation feature

Added export functions
Added the ability to fix parameter values

Improved the Transmission-Line-Model:

Greatly improved performance
Addition of a Tlms element, resulting in a short termination instead of an open

Added Bisquet-Open and -Short elements Bo and Bs, being special transmission-line modells used in DSSCs
New experimental Baseline Correction tool
Further Bug-fixes, etc.

3.0.0.4

Fixed a bug that caused files to being invisible in the file explorer
Added an AC current and voltage display feature to the Circuit Simulator
After files were inserted the last of those is activated in the file explorer
Improved indentation in the SDK Code Editor
Fixed multiple bugs and annoyances

3.0.0.3

New component: Circuit Simulator 3
New component: RelaxIS SDK Code Editor
Premade column designations are back
Save prompts appear only for changed projects
Improved performance for projects containing many files
Increased font sizes for graphs
Minor bug fixes

3.0.0.2

New function: Subtract Circuit
New function: Edit raw data
New function: Boss- & Panic-Buttons
Changed Move & Copy functions to be more obvious.
Added quickstart buttons to the Batchfit
Added Help Buttons for formula inputs
Rearranged the toolbar buttons
Rearranged the Result Preview Window
Fixed some crashes

3.0.0.1

Fixed a file permission bug, that prevented the Circuit Library from loading
Added a Feedback form, accessible through the 'About' dialog
Updated the CodeMeter software to the latest version

3.0.0.0

This is the initial release of RelaxIS 3.

It is a complete overhaul over RelaxIS 2 with many improved old and a lot of new features. Highlights include:

A new and improved GUI
RelaxIS Remote
Genetic Algorithms
RelaxIS SDK
New project management system base on SQLite and much more. See a teaser flyer here: http://www.rhd-instruments.de/relaxis/RelaxIS3_News.pdf

⚠️ 2020/09/08 - Security Advisory

Wibu Systems informed us about new security advisories for the Codemeter Runtime software.
Until version 3.0.15, the RelaxIS installer contained version 6.90. By advice of Wibu Systems we strongly recommend downloading and installing the current CodeMeter User Runtime version 7.10a or later.
The current RelaxIS version 3.0.16 contains runtime version 7.20 and is not affected.
Please see further user information here (PDF).

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