# Tenzir Node v4.1.0

## 🚀 Features

### Introduce an experimental `sigma` operator

Aug 31, 2023 · [@dominiklohmann](https://github.com/dominiklohmann) · [#3138](https://github.com/tenzir/tenzir/pull/3138)

The new `sigma` operator filters its input with Sigma rules and outputs matching events alongside the matched rule.

### Bump the tenzir-plugins submodule pointer to include the pipeline manager’s failure and rendered diagnostics functionality

Aug 31, 2023 · [@Dakostu](https://github.com/Dakostu) · [#3479](https://github.com/tenzir/tenzir/pull/3479)

The `rendered` field in the pipeline manager diagnostics delivers a displayable version of the diagnostic’s error message.

Pipelines that encounter an error during execution are now in a new `failed` rather than `stopped` state.

### Bump the tenzir-plugins submodule pointer to include the pipeline manager’s resuming and pausing functionality

Aug 25, 2023 · [@Dakostu](https://github.com/Dakostu) · [#3471](https://github.com/tenzir/tenzir/pull/3471)

The `pause` action in the `/pipeline/update` endpoint suspends a pipeline and sets its state to `paused`. Resume it with the `start` action.

Newly created pipelines are now in a new `created` rather than `stopped` state.

### Make `show pipelines` a thing

Aug 15, 2023 · [@mavam](https://github.com/mavam) · [#3457](https://github.com/tenzir/tenzir/pull/3457)

The new `show pipelines` aspect displays a list of all managed pipelines.

### Implement `show config`

Aug 14, 2023 · [@dominiklohmann](https://github.com/dominiklohmann) · [#3455](https://github.com/tenzir/tenzir/pull/3455)

The `show config` aspect returns the configuration currently in use, combining options set in the configuration file, the command-line, environment options.

### Implement `compress` and `decompress` operators

Aug 10, 2023 · [@dominiklohmann](https://github.com/dominiklohmann) · [#3443](https://github.com/tenzir/tenzir/pull/3443)

The `compress [--level <level>] <codec>` and `decompress <codec>` operators enable streaming compression and decompression in pipelines for `brotli`, `bz2`, `gzip`, `lz4`, and `zstd`.

## 🔧 Changes

### Refactor `show` aspects and rewrite `version`

Aug 11, 2023 · [@mavam](https://github.com/mavam) · [#3442](https://github.com/tenzir/tenzir/pull/3442)

The `version` operator no longer exists. Use `show version` to get the Tenzir version instead. The additional information that `version` produced is now available as `show build`, `show dependencies`, and `show plugins`.

## 🐞 Bug Fixes

### Tweak the execution node behavior

Aug 24, 2023 · [@dominiklohmann](https://github.com/dominiklohmann) · [#3470](https://github.com/tenzir/tenzir/pull/3470)

Pipeline operators that create output independent of their input now emit their output instantly instead of waiting for receiving further input. This makes the `shell` operator more reliable.

The `show <aspect>` operator wrongfully required unsafe pipelines to be allowed for some aspects. This is now fixed.

[ Download on GitHub ](https://github.com/tenzir/tenzir/releases/tag/v4.1.0)

[Get the release artifacts and source code.](https://github.com/tenzir/tenzir/releases/tag/v4.1.0)