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+title: MISP 2.4.86 released (aka sharing groups improvement, large information sharing communities support and more)
+layout: post
+featured: /assets/images/misp-small.png
+---
+
+A new version of MISP [2.4.86](https://github.com/MISP/MISP/tree/v2.4.86) has been released including improvement in the sharing groups and their API, improved granular of modules visibility on instance-level and many bug fixes.
+
+There are different usages of MISP especially in large information sharing and exchange communities such as ISACs (e.g. [X-ISAC](https://www.x-isac.org/) or similar organisations. Two main new features were introduced to better support such use:
+
+- An optional feature to limit the visibility of organisations has been added where only site admins and sharing groups can see the full organisation lists. This is a disabled option by default but can be enabled if this is required in your use-case. Keep in mind sharing groups managers can still see the full list of organisations (it's by design as required to expand and create sharing groups).
+- An additional setting in the modules (expansion, import, export) allow to limit the accessibility of a module to a specific organisation. This is quite useful when specific expansion services are limited to a single organisations such as services restricted due API keys restriction or access to specific sensitive services (e.g. ticketing systems, SIEMs lookup,...)
+
+Sharing groups are now manageable via the API allowing creation and management of sharing groups to other applications.
+
+A significant performance improvement (a gain of 50% is quite common) when importing large batch of attributes into MISP via the UI or the API. Another performance gain
+is the attribute index and search by a factor of 10 due to some silly MySQL indexing behaviors.
+
+Many bug fixes and improvement were introduced in this version.
+
+The full change log is available [here](https://www.misp.software/Changelog.txt). [PyMISP change log](https://www.misp.software/PyMISP-Changelog.txt) is also available.
+
+In addition, [MISP dashboard](https://github.com/MISP/misp-dashboard) has been significantly improved and can be installed together in one or more MISP instances.
+
+PyMISP has been refactored and improved. The PyMISP documentation has been updated [PDF](https://media.readthedocs.org/pdf/pymisp/latest/pymisp.pdf).
+
+MISP [galaxy](/galaxy.pdf), [objects](/objects.pdf) and [taxonomies](/taxonomies.pdf) were notably extended by many contributors. These are also included by default in MISP. Don't forget to do a `git submodule update` and update galaxies, objects and taxonomies via the UI.
+
+MISP trainings are foreseen the 17/01 and 18/01 in Luxembourg including a full-day API and extension hands-on session. [For more information and registration](https://www.circl.lu/services/misp-training-materials/). We have also many other trainings (Vienna in February) and events foreseen in 2018, [for more information](/events/)
+