You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Bug FixesKind: in v2.1.242,
Bug FixesSection of the release
What
Recent system libraries emit a narrow no-break space (U+202F) before AM/PM rather than an ordinary space, which left some timestamps showing uppercase "AM"/"PM". Three formatters now accept either character, and one of them also gained the case-insensitive matching it was missing.
Evidence
/[ \u202f]([AP]M)/i
Strings lifted out of the shipped bundle, so the claim above can be checked against them.