Lib.rs

Version	Released	Features	Dependency changes	Downloads/mo	MSRV
1.1.0 [git]	Apr 25, 2017		serde 1.0.0 serde_derive 1.0.0 serde_json 1.0.0	240	1.15~
1.0.0 [git]	Feb 3, 2017				1.13~
1.0.0-rc2 [git]	Jan 27, 2017		serde 0.9.0 serde_derive 0.9.0 serde_json 0.9.0		1.13~
1.0.0-rc [git]	Jan 21, 2017	nightly rustc-serialize	serde_derive hyper 0.10.0 semver 0.5.0 serde 0.8.0 serde_json 0.8.0 rustc-serialize serde_codegen serde_macros syntex url		1.12~
0.9.1 [git]	Jul 11, 2016				1.8~
0.9.0 [git]	Apr 19, 2016		quick-error hyper 0.8.0 serde 0.7.0 serde_codegen 0.7.0 serde_json 0.7.0 serde_macros 0.7.0 syntex 0.31.0		1.6~
0.8.0 [git]	Dec 12, 2015	rustc-serialize	rustc-serialize hyper 0.7.0 semver 0.2.0 syntex 0.22.0 url 0.5.0		1.3~
0.7.1 [git]	Nov 7, 2015				1.2~
0.7.0 [git]	Nov 4, 2015				1.2~
0.6.0 [git]	Oct 26, 2015				1.2~
0.5.0 [git]	Oct 24, 2015				1.2~
0.4.1 [git]	Oct 22, 2015		log serde_codegen 0.6.1 serde_macros 0.6.1		1.1
0.4.0 [git]	Oct 13, 2015				1.1
0.3.0 [git]	Oct 8, 2015		serde 0.6.0 serde_json 0.6.0 syntex 0.17.0		1.1
0.2.0 [git]	Aug 28, 2015		time		1.1
0.1.0 [git]	Aug 26, 2015				1.2~

All published by Livio Ribeiro.

Minimum Supported Rust Version (MSRV) is only approximate. A range of two versions means "oldest rustc verified to work ~ oldest rustc that might work". Actual MSRV will vary depending on crate features, target platform, and dependency versions. The data is estimated based on the latest stable Rust version available at the time the crate has been published and cargo check or cargo clippy on Linux/aarch64.