# Svelte changelog ## 1.64.0 * Deprecate passing a string argument to `component.get` ([#1347](https://github.com/sveltejs/svelte/pull/1347)) ## 1.63.1 * Allow `observe` method to be overwritten ## 1.63.0 * Add `onstate` and `onupdate` lifecycle hooks and deprecate `component.observe` ([#1197](https://github.com/sveltejs/svelte/issues/1197)) * Add `on` and `fire` to `Store`, deprecate `onchange` and `observe` ([#1344](https://github.com/sveltejs/svelte/pull/1344)) * Require computed properties to have destructured argument in v2 mode ([#1069](https://github.com/sveltejs/svelte/issues/1069)) ## 1.62.0 * Add a `code` field to errors and warnings ([#474](https://github.com/sveltejs/svelte/issues/474)) * When using v2 syntax, do not use interpolation in non-root `