Jeston documents a conservative deprecation rule: an API is marked deprecated for at least one major release when a replacement exists. Documentation should explain the alternative, introduction version, and planned removal version.
Why this matters
Jeston's design keeps the runtime explicit. The framework gives teams a place to express the contract, while the application remains responsible for provider choice, policy, failure handling, and operational measurement.
A practical reading rule
Separate supported behavior from experimental work, roadmap items, catalog metadata, and application responsibilities. That distinction is essential when adopting a framework and when writing upgrade documentation.
This article is part of a technical series about Jeston by Kvant. The source of truth is the official repository. Verify the current package and documentation before applying any example to production.
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