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Support a default variant for tagged unions when the tag field is missing

Status: Open.

#1098 In msgspec/msgspec;

· ofek opened on Jun 21, 2026

msgspec tests crash with PYTHON_LAZY_IMPORTS=all on 3.15

bugSomething isn't workingSomething isn't working

Status: Open.

#1095 In msgspec/msgspec;

· sobolevn opened on Jun 21, 2026

Deprecate top-level re-exports

Status: Open.

#1090 In msgspec/msgspec;

· provinzkraut opened on Jun 19, 2026

Struct field overridden as ClassVar in subclass produces unexpected behavior

Status: Open.

#1086 In msgspec/msgspec;

· LmeSzinc opened on Jun 18, 2026

Support decoding JSON with comments and trailing commas

Status: Open.

#1078 In msgspec/msgspec;

· Vizonex opened on Jun 16, 2026

Redirect old docs to new docs

Status: Open.

#1061 In msgspec/msgspec;

· umarbutler opened on Jun 13, 2026

Consider using stubtest to test the stubs

Status: Open.

#1056 In msgspec/msgspec;

· sobolevn opened on Jun 12, 2026

Stack overflowed when testing test_JSONTestSuite.py on system with small stack size

Status: Open.

#1033 In msgspec/msgspec;

· LmeSzinc opened on May 29, 2026

Add plain binary encoder/decoder and type annotations (string length, bit width, endianness)

Status: Open.

#1031 In msgspec/msgspec;

· zyv opened on May 24, 2026

support for python 3.15 frozendict

Status: Open.

#1029 In msgspec/msgspec;

· dgkuester-nist opened on May 9, 2026

field: Schema | None = None should generate anyOf where null is the last item

Status: Open.

#1027 In msgspec/msgspec;

· sobolevn opened on Apr 28, 2026

Port to new concurrent.interpreters support in cpython 3.14+

Status: Open.

#1026 In msgspec/msgspec;

· goodboy opened on Apr 24, 2026