Icinga 2 Files

The core of our monitoring platform

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Name	Modified	Size	InfoDownloads / Week
Parent folder
Icinga 2 v2.16.4 source code.tar.gz	2026-07-14	9.6 MB	0
Icinga 2 v2.16.4 source code.zip	2026-07-14	10.2 MB	2
README.md	2026-07-14	1.1 kB	0
Totals: 3 Items		19.8 MB	2

This release contains a number of fixes for various smaller but annoying bugs, including one regression regarding API authentication with certain HTTP client libraries. It also ensures that Icinga 2 is compatible with newer OpenSSL versions.

Bugfixes

Track objects deleted at runtime to avoid erroneous recreation when processing the replay log (#10933)
Ensure that connecting to endpoints can no longer hang indefinitely, which had stopped it from initiating further connection attempts until Icinga 2 was restarted (#10929)
Fix a regression introduced with v2.16.0, that broke API authentication for clients that only send HTTP Basic Auth credentials after the server requested them (#10927)
Improve locking of performance data arrays to prevent possible deadlocks (#10930)
Fix high response latency with multiple API requests targeting non-existent hosts or services (#10928)

Enhancements and Documentation

Add support for OpenSSL 4.0 (#10934)
Remove Amazon Linux 2 from the documentation after it has reached its end of life (#10935)

Source: README.md, updated 2026-07-14

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