> For the complete documentation index, see [llms.txt](https://docs.trilio.io/openstack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trilio.io/openstack/upgrading-to-t4o-6.x-from-older-supported-versions/upgradetrilio.md).

# Upgrade Trilio

{% content-ref url="/pages/yBQoFxvELuHKx27wiONv" %}
[Upgrading on RHOSP](/openstack/upgrading-to-t4o-6.x-from-older-supported-versions/upgradetrilio/upgrading-on-rhosp.md)
{% endcontent-ref %}

{% content-ref url="/pages/DAGkQPRE5RDgp78NM1Ly" %}
[Upgrading on RHOSO](/openstack/upgrading-to-t4o-6.x-from-older-supported-versions/upgradetrilio/upgrade_on_rhoso18.md)
{% endcontent-ref %}

{% content-ref url="/pages/4dEoB9izqi4Y5sqFPwie" %}
[Upgrading on OpenStack-Helm/MOSK](/openstack/upgrading-to-t4o-6.x-from-older-supported-versions/upgradetrilio/upgrading_on_oshelm.md)
{% endcontent-ref %}