If upgrading multiple versions, each upgrade must be done in turn. For example, if upgrading from 4.1 to 4.3, the 4.1 to 4.2 steps must be done in full, then the 4.2 to 4.3 steps in full.

• Upgrading from 4.3 to 4.4
• Upgrading from 4.2 to 4.3
• Upgrading from 4.1 to 4.2
• Upgrading from 4.0 to 4.1
• Upgrading from 3.15 to 4.0
• Upgrading from 3.14 to 3.15
• Upgrading from 3.13 to 3.14
• Upgrading from 3.12 to 3.13
• Upgrading from 3.11 to 3.12
• Upgrading from 3.10 to 3.11
• Upgrading from 3.9 to 3.10
• Upgrading from 3.8 to 3.9

If upgrading from older versions, please see the guides for the version you are upgrading to.