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npm · #1983 most downloaded on npm
Ultra-fast MessagePack implementation with extensions for records and structured cloning
Last release 22 days ago
27 Aug 2026
Release timing varies
gaps range from 1 weeks to 7 months
Rarely documented
notes for 1 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
6 years old
139 releases · first in 2020
One column per quarter.
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Converted all modules to ESM and making them available for use in Deno.
Converted all modules to ESM and making them available for use in Deno.
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