# Issue Regressions, Email Alerts, Rust, Keil RTX5, and Even More

August 7, 2019

## Issue Regressions[​](#issue-regressions "Direct link to Issue Regressions")

Memfault will now re-open an Issue if it is seen on a newer version than when it was last resolved. This helps teams find when Issues are not actually fixed!

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For example, if an Issue is "Resolved" when the Max Version is 1.0.0, and the same Issue appears on a version 1.0.1, then that Issue will be re-opened due to a regression.

To prevent regressions from occurring on a particular Issue, there is a new Mute feature as well.

[![](/img/blog/2019-08-07-issue-regressions-min.png)](/img/blog/2019-08-07-issue-regressions-min.png)

## Email Alerts on Issues[​](#email-alerts-on-issues "Direct link to Email Alerts on Issues")

Memfault will now send out emails on new, resolved, regressed, and reopened Issues.

[![](/img/blog/2019-08-07-issue-alerts-min.png)](/img/blog/2019-08-07-issue-alerts-min.png)

## Rust Trace Support[​](#rust-trace-support "Direct link to Rust Trace Support")

Memfault can now process traces generated from devices running [Embedded Rust](https://www.rust-lang.org/what/embedded).

## Keil RTX5 RTOS / (Mbed OS) Awareness[​](#keil-rtx5-rtos--mbed-os-awareness "Direct link to Keil RTX5 RTOS / (Mbed OS) Awareness")

Memfault can now process traces generated while using the Keil RTX5 RTOS (used in the Mbed OS) and display traces for all the threads. Here's a portion of an example crash due to executing a bad function:

[![](/img/blog/2019-08-07-keil-rtx5-min.png)](/img/blog/2019-08-07-keil-rtx5-min.png)

## Deployments View[​](#deployments-view "Direct link to Deployments View")

A new page in the "Fleet" let's you easily view your most recent deployments.

[![](/img/blog/2019-08-07-deployments-view-min.png)](/img/blog/2019-08-07-deployments-view-min.png)