Message format failed in version 9.14.3

[aliasmaya]

Reporting a bug?

Recently I'm upgrading my vue project for vue-i18n, from version 9.2.2 to 9.14.3, and my project's using message formatting, so I changed the rails i18n format, from "Current Date: %{date}" to "Current Date: {date}", but as per my testing, the named interpolation was failed and it direct rendering out as "Current Date: {date}" for the following codes in test.vue:

<div>{{ $t('messages.currentDate', {date: '2025-07-01'}) }}</div>

But if I upgrade to the latest version 11.1.7, it works fine.

Also, I've try version 9.14.1 & 9.14.4, but still failed.

Any clue?

Expected behavior

Support named interpolation

Reproduction

Format message like "Current Date: {date}" in the following code

<div>{{ $t('messages.currentDate', {date: '2025-07-01'}) }}</div>

System Info

Windows10, Vue3, node.js v12.6.0

Screenshot

No response

Additional context

No response

Validations

• Read the Contributing Guidelines
• Read the Documentation
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussions

[aliasmaya]

Seems that I have to implement a message compiler for the formatting.