v2.4.150 release, retroactively

_posts/2021-10-12-MISP.2.4.150.md

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+title: MISP 2.4.150 released (The "Bloody PKI again" hotfix release)
+layout: post
+featured: /assets/images/misp/blog/misp-openapi.png
+---
+
+# MISP 2.4.150 released
+
+MISP 2.4.150 released, including a new CA bundle to combat the issues with the Letsencrypt root CA expiration. This is a follow-up release to 2.4.149 and has no other major changes besides pointing to our own repository of the framework that includes the new CA bundle.
+
+# Sync issues due to the expiration of a Letsencrypt root CA
+
+As described in their [blog post](https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/#:~:text=On%20September%2030%202021%2C%20there,accept%20your%20Let's%20Encrypt%20certificate), Letsencrpyt had to retire an old Root CA, meaning that that SSL connections when synchronising MISP with other instances would fail if the remote side used letsencrypt. This update includes a new CA bundle that should help you avoid any issues with this.# Acknowledgement
+
+We would like to thank all the [contributors](https://www.misp-project.org/contributors), reporters and users who have helped us in the past months to improve MISP and information sharing at large. This release includes multiple updates in [misp-objects](https://www.misp-project.org/objects.html), [misp-taxonomies](https://www.misp-project.org/taxonomies.html) and [misp-galaxy](https://www.misp-project.org/galaxy.html)
+.
+
+As always, a detailed and [complete changelog is available](https://www.misp-project.org/Changelog.txt) with all the fixes, changes and improvements.
+