Cargo

protobuf

Protocol Buffers - Google's data interchange format

About

protobufrustserialization

github.com/stepancheg/rust-protobufMITesrauchg, Tony Liao, zhangskz +142.5M / week3k · 398 forks · 141 contributors

I'm on version…

Compares against 3.7.2 (latest stable)

Latest Stable3.7.2Mar 10, 2025

Latest RC4.36.0-rc.2Aug 3, 2026

Latest Beta4.31.0-beta1Mar 6, 2025

Latest Alpha3.0.0-alpha.14May 2, 2022

Release cadenceEvery 2 months

Last releaseSep 17, 2026

Open advisories0

Changelog quality13% curated

CHANGELOG, gaps for some releases

Release history SecurityYou're on

3.x4.x

STABLE · RCPRE-RELEASE Oct2024AprJulOct2025AprJulOct2026AprJul

141 older or filtered releases not shown.

Upgrade guides

Breaking changes and a migration checklist for each major version

protobuf 2 → 32.28.0 → 3.7.2Mar 10, 2025 Breaking115758 protobuf 1 → 21.7.5 → 2.28.0Sep 26, 2022 Unknown1 protobuf 0.0 → 10.0.10 → 1.7.5May 19, 2019 Unknown

VersionChannelDateChangesSecurity

4.36.2-release DevSep 17, 2026No changes listed 4.36.1-release DevAug 31, 2026No changes listed 4.36.0-rc.2 RCAug 3, 2026No changes listed 4.36.0-rc.1 RCJul 9, 2026No changes listed 4.35.1-release DevJun 11, 2026No changes listed 4.35.0-release DevMay 19, 2026No changes listed 4.35.0-rc.2 RCMay 6, 2026No changes listed 4.35.0-rc.1 RCApr 20, 2026No changes listed 4.34.2-release DevMay 20, 2026No changes listed 4.34.1-release DevMar 20, 2026No changes listed 4.34.0-release DevFeb 27, 2026No changes listed 4.34.0-rc.2 RCFeb 6, 2026No changes listed 4.34.0-rc.1 RCJan 22, 2026No changes listed 4.33.6-release DevMar 18, 2026No changes listed 4.33.5-release DevJan 29, 2026No changes listed 4.33.4-release DevJan 12, 2026No changes listed 4.33.3-release DevJan 9, 2026No changes listed 4.33.2-release DevDec 6, 2025No changes listed 4.33.1-release DevNov 13, 2025No changes listed 4.33.0-release DevOct 15, 2025No changes listed