GCD is used at run time in 184 crates (of which 18 optionally). It is a direct run-time dependency in 21 crates. It's used only as a dev dependency in 41 crates (of which 1 directly).

Depender (with downloads and own rev deps) GCD version
61K 91 fugit >=2.1, <3.0
1.8K 1 htb ^2.1.0
900 4 ckb-std ^2.3.0
700 1 uu_dd ^2.3
550 1 rustscan ^2.0.1
240 repetend_len ^2.3.0
100 1 monument ^2.3.0
prime_bag ^2.3.0
1 klavier-core ^2.1.0
4 const-frac ^2
floating_bar ^2.0.1
1 timestamp-stretcher ^2.0.1
1 audio-engine ^2
hesp-manifest ^2.3
miratope ^2.0
3 relp-num ^2.3.0
miter ^2.0.1
numerous ^2.3.0
ucsi ^2.3.0
qalqulator ^2.1.0
quaru ^2.3.0
2.3K 2 stable-hash dev ^2.1.0