Add release notes for OpenBolt 5.6.0

This commit adds the OpenBolt 5.6.0 release to the notes with CVE data
copied in from the GitHub release.

Signed-off-by: Charlie Sharpsteen <charlie@overlookinfratech.com>

Author: Sharpie

docs/_openbolt_5x/release_notes.md

@@ -5,6 +5,36 @@ title: OpenBolt release notes
 
 This page documents the history of the OpenBolt 5.x series.
 
+## OpenBolt 5.6.0
+
+Released on June 17, 2026
+
+Please check the [GitHub OpenBolt release page](https://github.com/OpenVoxProject/openbolt/releases/tag/5.6.0) for details on new features or bug fixes.
+
+### Security Issues Resolved in 5.6.0
+
+| Identifier                                                        | CVSS 3.1 Score | Resolved By                         |
+| :---------------------------------------------------------------- | :------------: | :---------------------------------- |
+| [CVE-2026-41316](https://nvd.nist.gov/vuln/detail/CVE-2026-41316) |       8.1      | `pkg:gem/erb@4.0.3.1`               |
+| [CVE-2026-33637](https://nvd.nist.gov/vuln/detail/CVE-2026-33637) |       6.5      | `pkg:gem/faraday@2.14.2`            |
+| [CVE-2026-42258](https://nvd.nist.gov/vuln/detail/CVE-2026-42258) |       9.8      | `pkg:gem/net-imap@0.4.24`           |
+| [CVE-2026-42257](https://nvd.nist.gov/vuln/detail/CVE-2026-42257) |       9.8      | `pkg:gem/net-imap@0.4.24`           |
+| [CVE-2026-42245](https://nvd.nist.gov/vuln/detail/CVE-2026-42245) |       7.5      | `pkg:gem/net-imap@0.4.24`           |
+| [CVE-2026-42246](https://nvd.nist.gov/vuln/detail/CVE-2026-42246) |       7.4      | `pkg:gem/net-imap@0.4.24`           |
+| [CVE-2025-6021](https://nvd.nist.gov/vuln/detail/CVE-2025-6021)   |       7.5      | `pkg:github/gnome/libxml2@2.15.3`   |
+| [CVE-2026-6732](https://nvd.nist.gov/vuln/detail/CVE-2026-6732)   |       7.5      | `pkg:github/gnome/libxml2@2.15.3`   |
+| [CVE-2025-6170](https://nvd.nist.gov/vuln/detail/CVE-2025-6170)   |       2.5      | `pkg:github/gnome/libxml2@2.15.3`   |
+| [CVE-2026-34182](https://nvd.nist.gov/vuln/detail/CVE-2026-34182) |       9.1      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-45447](https://nvd.nist.gov/vuln/detail/CVE-2026-45447) |       8.8      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-7383](https://nvd.nist.gov/vuln/detail/CVE-2026-7383)   |       8.1      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-34180](https://nvd.nist.gov/vuln/detail/CVE-2026-34180) |       7.5      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-45445](https://nvd.nist.gov/vuln/detail/CVE-2026-45445) |       7.5      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-9076](https://nvd.nist.gov/vuln/detail/CVE-2026-9076)   |       7.5      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-42766](https://nvd.nist.gov/vuln/detail/CVE-2026-42766) |       5.9      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-42767](https://nvd.nist.gov/vuln/detail/CVE-2026-42767) |       5.9      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-45446](https://nvd.nist.gov/vuln/detail/CVE-2026-45446) |       4.8      | `pkg:github/openssl/openssl@3.0.21` |
+| [CVE-2026-42770](https://nvd.nist.gov/vuln/detail/CVE-2026-42770) |       3.7      | `pkg:github/openssl/openssl@3.0.21` |
+
 ## OpenBolt 5.5.0
 
 Released on April 30, 2026