> For the complete documentation index, see [llms.txt](https://scenariolabhelp.windhamlabs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://scenariolabhelp.windhamlabs.com/release-notes.md).

# Release Notes

![Scenario Lab, a new tool for Enhanced Scenario Analysis](/files/-MHHxkqbB2MEozlPBsDo)

## 1.2.0.11448 (2022-04-25)

We have added features and made improvements since our launch of Stress Test Lab.

### Added

* Modify probabilities of prospective stress scenarios and reconcile scenario estimates with your views.
* Review the covariance matrix on the examine stress scenario screen.

### Updated

* Squashed bug that sometimes did not let users switch anchor scenarios.

## 1.2.0.11419 (2022-03-07)

We are proud to announce our newest innovation, Stress Test Lab! Stress Test Lab allows you assess the probability of stress scenarios. This work is based on recently [published research](https://www.risk.net/journal-of-risk/7931516/severe-but-plausible-or-not) in the Journal of Risk.

### Added

* Smart stress scenarios allow users to select data that lies above or below a certain percentile range for an economic variable.
* Adaptive anchoring allows a user to forecast probabilities based on their views of economic conditions persisting or reverting to its historical norms.
* Adjust the plausibility model to align theoretical assumptions with the empirical distribution.

### **Updated** 

* Improved cyber security.
* Improved chart presentation.
* Improved performance of the application so you can analyze scenarios faster.
* Improved table presentation.
* Replaced scientific notation with rounding.

## 1.1.0.10829 (2020-12-08)

More improvements just in time for the holiday season, warm wishes from the Windham Labs team!

### Added

* Expanded data set available for analysis.
* Licensing and security improvements.

### Updated

* Optimized loading of instruments and economic variables, 10x improvement!
* Improved database infrastructure.

## 1.1.0.10755 (2020-11-16)

The Labs team have been busy generating new modeling ideas and implementing them for your analysis needs. We've added our recent research insight into a different approach to regression - for mapping relative scenario probabilities onto asset class returns.

### Added

* Access the [Partial Sample Regression](https://jpm.pm-research.com/content/early/2020/07/06/jpm.2020.1.167) as a regression model for mapping scenario probabilities onto asset class returns, and configure a relevance threshold.
* Added a Help menu item under the user profile.

### Updated

* Improve administration panel configuration.

## **1.1.0.10710 (2020-10-28)**

### Added

* Partial sample regression model to the calculation engine (see the our [research paper in the Journal of Portfolio Management September 2020](https://jpm.pm-research.com/content/early/2020/07/06/jpm.2020.1.167))
* New endpoints for Historical Events and authentication.

### Updated 

* Prospective change to reference anchor scenario when calculating expected scenario returns.
* Squashed bug when creating prospective scenarios with the same name as anchor scenarios.

## 1.1.0.10661 (2020-10-07)

Hello World! Scenario Lab's first version gets introduced to the market today.

### Added

* Export diagnostics data for advanced and internal users.

### Updated

* Fixed asynchronous request conflict on View Historical Impact screen.
* View Historical Impact now defaults to grouping by attribute across all portfolios.
* Independent variables treatment (yearly changes) in multi-factor regressions.
* Updated research portal reference.
* Minor UI revisions.

## 1.1.0.10621 (2020-10-05)

You can now review historical events and their impact across your portfolios and use a new index of the business cycle, the KKT Index - a recession probability indicator.

### Added

* [The Kinlaw-Kritzman-Turkington (KKT) Index](https://www.statestreet.com/ideas/articles/kkt-index.html),  a recession probability indicator, is now included in Scenario Lab.
* **View Historical Impact** screen: analyze historical events across portfolios.

### Updated

* Improved server security.
* Minor control behavior fixes across data selection screens.
* Stability fix on Examine Scenarios screen.

## 1.0.0.10544 (2020-07-31)

Introducing Scenario Lab internally, we believe this is going to be a neat tool for analysts.

### Added

* Store and encapsulate case studies into "case files".
* Select economic variable and asset data from a Windham-curated list of instruments.
* Review timeseries and descriptive statistics about timeseries data.
* Specify and customize prospective scenarios as projections of economic variables.
* Analyze and update probabilities of prospective scenarios given anchor scenarios.
* Inspect economic variable returns mapped onto asset class returns.
* Observe each portfolio’s expected return based on (scenario) probability-weighted returns.