Releasing v4.15.1.

[cb-alish]

v4.15.1 (2026-01-19)

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Regression Bug Fixes:

• Fix list fields to accept JSON objects with explicit numeric keys. Reference.

Tests:

• Added PHPUnit test case coverage workflow on pull request.
• Added tests suits for JsonParamEncoder.

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[ychedemois]

@cb-alish thanks for the fix !

The original PR added JSON_FORCE_OBJECT in two places : JsonParamEncoder / URLFormEncoder,
but this PR only modifies one of them,
is that intentional ?

[cb-alish]

Hi @ychedemois, I initially thought this wasn’t required for the JsonParamEncoder since it parses the JSON at the top level. However, after you pointed it out, I double-checked and realized I was wrong—this is required for JsonParamEncoder as well. Thanks for raising this. I’ve also added tests to cover this case.