ProcessWire brings experimental SQLite and PostgreSQL support

ProcessWire 3.0.274 on the dev branch adds experimental support for installing and running sites on SQLite or PostgreSQL, alongside MySQL.

Its database layer translates existing MySQL-style queries at runtime, so existing API code, templates and most modules can work without changes. The installer now offers both database types, and sites can be moved among the three backends through profiles exported with ProcessExportProfile 5.0.2 or newer.

ProcessWire asks users to test non-production sites and report failed queries, particularly from third-party modules that use MySQL-specific SQL.