Bug 265818 – Intl.DateTimeFormat returns a numeric month with options { year: "numeric", month:"short" } for "pl-PL" (Polish)

• Status: NEW
• Component: JavaScriptCore

new Intl.DateTimeFormat("pl-PL", { year: "numeric", month: "short"}).format(new Date())  returns a string with a date formatted like "12.2023" when I expect "gru 2023"

[Radar WebKit Bug Importer]

<rdar://problem/119515016>

[Mark Lam]

Hi Gary, can you please provide details of what device and OS (including version) you are seeing this issue on?

Or if you are talking about a specific WebKit build that you built yourself, please provide details of what platform you are targeting, OS (including version), ICU version, toolchain, and also the git hash (or canonical link) of the version of WebKit you are building?

Without this info, this bug may not be actionable.  Thanks.

(In reply to Mark Lam from comment #2)
> Hi Gary, can you please provide details of what device and OS (including
> version) you are seeing this issue on?
> 
> Or if you are talking about a specific WebKit build that you built yourself,
> please provide details of what platform you are targeting, OS (including
> version), ICU version, toolchain, and also the git hash (or canonical link)
> of the version of WebKit you are building?
> 
> Without this info, this bug may not be actionable.  Thanks.

Hi Mark, this issue was observed on Safari version Version 17.2, macOS Ventura 13.6.3

[Mark Lam]

This is due to pre-existing behavior in ICU that has been on Apple platforms for a long time.  We'll see what we can do.