Releases
Send your app's version, and every chart marks each release, the service page compares versions, and lists show what is new in one.
Every WizeLens SDK sends the version of your app as service.version on its spans. With it, every chart marks when a
release went out, the service page compares versions side by side, and Errors, Insights, and Security show what a release
brought. Problems names a new release as a suspected cause.
Send the version
| Stack | Where the version comes from |
|---|---|
| Node, Next.js | The release option, else WIZELENS_RELEASE, else OTEL_SERVICE_VERSION, else npm_package_version (set when npm runs your script) |
| .NET | The Release option, else WIZELENS_RELEASE, else OTEL_SERVICE_VERSION, else the entry assembly's informational version |
| React | The release prop of WizeLensProvider, else what the build plugin set |
| Vue, Angular, Svelte, plain JS | The release option, else what the build plugin set |
| Java, Python, Go | service.version on the OpenTelemetry resource, for example OTEL_RESOURCE_ATTRIBUTES=service.version=1.4.2 |
createWizeLens({ release: process.env.GIT_SHA });The build plugins of @wizeworks/lens-cli (Vite, webpack, and Next.js) set the release for browser code, and upload
source maps under the same release, so browser stacks find the right maps. See Source maps.
A version is kept up to 50 characters. Any text works: 1.4.2, 2026.10.21, or a commit hash.
Markers on charts
Every time chart draws a dashed line, with the version, at the moment a release first sent data. Releases less than one bar apart share one line, so services that ship together draw one marker ("3 releases"). With more than six lines, the labels hide and the lines stay. Hover a bar to see the releases in it, with their service and version.
When you pick a service in the top bar, charts mark that service's releases only.
Compare versions
A service's page has a Versions panel with its 10 newest versions:
| Column | What it shows |
|---|---|
| Version | The version, with Latest on the newest |
| Released | When it first sent data, over everything the host keeps |
| Requests | Requests in the time range |
| Error Rate | Red when it fails more often than the version before it |
| p95 | p95 duration |
| New Errors | Error groups first seen while this version was the newest |
Click a version to open the Errors page with the groups it brought.
New in this release
Errors, Insights, and Security have a Release filter once you pick a service. New in 1.4.2 keeps what was first seen while 1.4.2 was the newest version of that service: from its first data until the next version came out.
Problems
Problems reads the same release facts. When a service runs above normal right after a new version went out, the problem names the release as its suspected cause. In the cloud, an "above normal" alert notice links to that problem.