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

• 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 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.

• 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