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title: Version 2.3.1 Released
author: Jan Wagner
date: 2021-04-11
---

The Monitoring Plugins Development Team is proud to announce version 2.3.1 of
the Monitoring Plugins! This release comes with various fixes provided by more
than ten contributors, mostly for `check_curl`.  Many thanks to all of you!
<end-of-teaser>

For the list of notable changes in this release, see below.

You can get the tarball from our [download page][download].

## Enhancements
* `check_curl`: Add an option to verify the peer certificate & host using the system CA's

## Fixes
* `check_icmp`: fix simple typo, conspicuosly -> conspicuously
* `check_curl`: fixed help, usage and errors for TLS 1.3
* `check_curl`: fixed a potential buffer overflow in url buffer
* `check_dns`: split multiple IP addresses passed in one `-a` argument
* `check_curl`: added string_statuscode function for printing HTTP/1.1 and HTTP/2 correctly
* `check_curl`: fix crash if http header contains leading spaces
* `check_curl`: display a specific human-readable error message where possible
* `check_pgsql`: Using snprintf which honors the buffers size and guarantees null termination.
* `check_snmp`: put the "c" (to mark a counter) after the perfdata value
* `check_http`: Increase regexp limit
* `check_http`: make `-C` obvious
* `check_curl`: Increase regexp limit (to 1024 as in `check_http`)
* `check_curl`: make `-C` obvious (from `check_http`)

[download]: /download.html

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