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Deprecated versions and why

v2.0.0 had to be deprecated for unique reasons and due to a change of ownership. Hedron, currently Kvant, had to change its name and ownership for reasons of readability and integrity, and because This means that version 2.0.0 should cease to exist due to the Kvant ownership migration. In addition to this migration, there have been new changes to the framework’s code, available here.
Versions v1.1.0 and 0.1.0 have been discontinued due to reorganization, driven directly by the software engineers on the team.
The versions below are retained for historical reference. The repository’s current package is @kvantjs/jeston and the supported line is 2.1.x. The deprecations are primarily compatibility and ownership events, not a claim that every old release contained a security vulnerability. The repository and package metadata establish the concrete migration target: the package name is @kvantjs/jeston, the current version is 2.1.0, and the release checks validate the current source and generated build rather than the legacy lines. Where a historical release does not have a separately documented bug-level reason, this page deliberately describes the observable compatibility boundary instead of inventing one.
See the supported releases and migration material at https://jeston.kvant.sbs/versions and in the repository CHANGELOG.
Last modified on September 10, 2026