Legacy Evolution
Tweezr Wins Best of Show at FinovateFall 2026
Our third Finovate Best of Show, and the first in New York. Seven minutes on stage, one live demo on a real legacy core, and a room full of bankers who voted for it.
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Topic
Mainframe and COBOL Modernization, Without a Rewrite
A mainframe modernization strategy for banks that keeps the core running. These articles cover COBOL modernization and legacy system modernization as incremental evolution: discovery first, change in place, and why a big-bang rewrite or COBOL-to-Java conversion is rarely the safest path.
Legacy Evolution
Discovery Is the Migration
The industry treats discovery as Phase 1. That is the mistake that kills 70% of modernization programs. Discovery is not the prelude to the work. It is the work.
Legacy Evolution
The Retirement Cliff: When Your COBOL Lead Walks Out, Your Risk Doesn't
In every bank we walk into, there is one engineer who knows where the bodies are buried. When they retire, the bank inherits a system nobody can change safely. The answer is not to replace the person. It is to capture what they know, before the cliff.