Impressive longevity. Forward PHP compatibility without forced rewrites is something very few CMS platforms can honestly claim, especially across multiple major PHP generations.

Out of curiosity: what have been the hardest PHP 8.x changes to accommodate in the legacy eZ Publish 6 codebase (e.g., typing, engine changes, deprecated behaviors)? And how much of the architecture is still original vs. incrementally modernized?

Respect for keeping a 1990s-era CMS viable on modern PHP while preserving content models and workflows—that’s not a trivial engineering problem.

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