Dovecot Pro
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Revision: ae69209

Note: This is pre-release documentation.
Please access https://doc.dovecotpro.com/latest/installation/upgrading/overview.html for documentation on released versions.

Upgrading Dovecot ​

Read the Release Notes to see if there are any important changes between releases.

File Formats ​

Since v3.0.0 release, upgrading won't silently change configuration (defaults). Either the old configuration is preserved, or startup fails asking you to upgrade the configuration file. The defaults are changed only when dovecot_config_version setting is changed.

Similarly since v3.0.0 release, upgrading won't do any backwards incompatible changes to storage files. If the release no longer supports an old storage file format, the startup fails instead. The new file formats are used only when dovecot_storage_version setting is changed.

Dovecot Pro v2.3 and later ​

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