fix: downgrade default edition

[joseph-isaacs]

Signed-off-by: Connor Tsui connor.tsui20@gmail.com## Rationale for this change

• Closes: #000

What changes are included in this PR?

What APIs are changed? Are there any user-facing changes?

[codspeed-hq]

Merging this PR will degrade performance by 12.24%

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

❌ 1 regressed benchmark
✅ 1955 untouched benchmarks
⏩ 517 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	WallTime	words_gather_scalar[65536]	8.3 µs	9.4 µs	-12.24%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing ji/downgrade-default-ed (1615529) with develop (43a2099)²}

Footnotes

1. 517 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on develop (f793532) during the generation of this report, so 43a2099 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[robert3005]

because we write the new zoned layout I think the default edition has to include that

[robert3005]

done more comprehensive thing in #9478