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Vue 3 was widely used by developers surveyed for the 2025 State of Vue.js Report, but that did not mean Vue 2 migration was finished. Bytes issue 381, published April 3, 2025, described a Vue ecosystem adopting Pinia and pursuing performance improvements while still grappling with legacy migrations and large reactive applications.
What Bytes #381 says about Vue’s direction
The issue’s central theme is gradual change: Vue can evolve its internals without forcing another disruptive break for existing projects. Bytes attributes this outlook to Evan You, quoting him as saying, “we can introduce significant internal changes and innovation without a big breakage again.” The quotation is presented by Bytes; the issue does not link to a primary transcript.
That framing connects the issue’s main topics: broad Vue 3 use, a still-difficult Vue 2 migration, Pinia’s rise in global state management, performance concerns in bigger applications, and Vapor Mode as a proposed compilation strategy.
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Vue 3 adoption was broad, but migration remained unfinished
Bytes reported that 96% of survey takers had used Vue 3 in a project during the previous 12 months. It also reported that 35% had used Vue 2 during the previous year. These figures describe reported use, not the share of all Vue applications or a completed migration rate.
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The issue characterized Vue 2 as more than 15 months past end of life at the time of publication and said it was no longer receiving security updates. Bytes also identified migration from Vue 2 to Vue 3 as a persistent pain point. The figures and support characterization here are those reported in April 2025; the issue does not establish present-day Vue 2 support status.
The coexistence of Vue 3 use and Vue 2 use is not contradictory: developers can work across multiple projects, and a team may have adopted Vue 3 in new work while maintaining older applications. The issue does not provide project-level data or the survey methodology needed to quantify how many production systems had completed migration.
Pinia had overtaken Vuex in reported global state management use
Bytes said over 80% of Vue developers reported using Pinia for global state management, describing it as having taken the lead from Vuex. The issue presents Pinia’s modularity, simplicity, and type safety as reasons for its appeal, especially for developers working in typed applications.
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This is an adoption signal, not a mandate to replace every existing Vuex store. The issue does not include migration costs, a head-to-head feature evaluation, or evidence that every application benefits from switching. For a team considering a change, the practical question is whether its current store causes a real maintenance or typing problem—not simply which option was more common among respondents.
Performance gains did not erase concerns in large applications
The issue reported Vue 3 as 55% faster, but the retrieved article text does not explain the benchmark, comparison baseline, workload, or measurement method. Treat that number as a claim reported by Bytes, not a universal guarantee that any Vue 3 application will run 55% faster.
Bytes also reported developer frustration with performance in large TypeScript codebases and applications with substantial reactivity. Those are distinct dimensions: a framework-level performance result does not by itself settle how an application behaves as its typed codebase and reactive state grow. The issue provides no benchmark or diagnostic steps for identifying the source of those complaints.
What Vapor Mode was expected to change
As of April 3, 2025, Bytes described Vue Vapor Mode as an experimental feature expected to launch in Vue 3.6. It presented Vapor Mode as a new compilation strategy: the familiar Vue API would remain, while the compiler would produce a different output intended to improve performance. The issue said the Vue team was prioritizing compatibility.
That date matters. The newsletter’s statement was a forecast, not proof that Vapor Mode shipped in Vue 3.6 or is available now. The source does not establish its current release status, so readers should verify the Vue project’s current release information before planning around it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to read the 2025 figures
Bytes summarizes the State of Vue.js 2025 Report, but the retrieved issue does not establish the report’s original publisher or survey methodology. The percentages therefore should be attributed to Bytes’ account of the report rather than presented as independently verified measurements of the entire Vue ecosystem.
The source for the dated adoption figures, performance claim, migration discussion, and Vapor Mode forecast is Bytes issue 381, “The State of the Vuenion,” published April 3, 2025.
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