Go: Cookie Cap and Crypto and JSON Speedups
Go activity centers on spec alignment and efficiency, with a 400-day cookie lifetime cap for browser parity, plus faster AES-GCM on LoongArch and leaner JSON marshaling.
Duration: PT2M3S
Episode overview
This episode is a short developer briefing from Go.
It explains recent repository work in plain language.
- Show: Go
- Published: 2026-11-01T14:05:25Z
- Audio duration: PT2M3S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Sunday, November 1st, 2026 — you're listening to your Go developer briefing.
The through-line today isn't a feature launch, it's alignment and efficiency: making the standard library behave like modern browsers, and shaving overhead from two hot paths.
First, cookie handling gets more realistic. Pull request 82748 caps cookie lifetime in the standard cookie jar at 400 days. That's required by the current cookie specification, and it's what Chrome has enforced since 2022. Practically, if a server asks for longer with a max age or expires date, the jar now expires…
Second, two performance wins with no API changes. One commit, starting 8 d 8 3 5 5 6, brings hardware-accelerated AES G C M encryption to Loong 64. It adds an assembly backend gated on the vector extension, with constant-time hash handling because that chip lacks a carry-less multiply. On Loongson server hardware,…
The other, commit starting 9 d d 3 1 b a, streamlines the new JSON packages. A new commit buffer helper avoids redundant pointer stores and write barriers when publishing encoded output. Benchmarks show about an 8 percent overall marshal improvement, up to 20 percent for large integer arrays.
What…
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