Lucee is an open-source CFML engine (LGPL-licensed, stewarded by the Lucee Association Switzerland), originally forked from Railo CFML Server 4.2, currently at Lucee 6. Its own documentation describes it as “highly compatible” with Adobe ColdFusion but not 100% drop-in — most CFML ports without changes, but a small set of verified differences will catch you if you don’t plan for them. The biggest pitfalls: arrays are passed by reference in Lucee, by value in Adobe CF; local scope behavior differs; JSON casing is different; CFX native tags don’t work; Verity is gone; and PDF/Chart/ORM features are extensions (not built-in). The biggest wins: zero licensing cost, smaller footprint, Docker-native deployment, per-application configuration, and an active open-source community. Realistic timelines: 4–8 weeks for small applications (under 50k lines), 3–6 months for mid-sized (50k-250k lines), 6–18 months for large enterprise codebases (500k+ lines) — assuming a Fixinator-driven compatibility scan upfront, not a “just install Lucee and see what breaks” approach.
Deepak Sir
Posted on • Originally published at Medium
How to Migrate ColdFusion to Lucee: Pitfalls, Wins, and Timeline Estimates
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