Specs

Specs is used at run time in 113 crates (of which 10 optionally). It is a direct run-time dependency in 45 crates. It's used only as a dev dependency in 6 crates (of which 5 directly).

Number of dependers	Specs version	Downloads/month
4	0.20.0	1.9K
3	0.18.0	900
2	0.17.0	750
39	0.16.1	2.8K
28	0.15.1	1.3K
30	0.14.3	1.4K
4	0.12.3	600
1	0.11.2	190
3	0.11.0-alpha5	6
3	0.10.0	320
2	0.7.1	290

Depender (with downloads and own rev deps)			Specs version
4.5K	22	amethyst_core		^0.16.0
4.4K	6	specs-hierarchy		^0.16.0
2.9K	9	raylib		^0.16.1
5.3K	5	bracket-geometry	optional	~0.18.0
1.1K		voxelize		^0.20.0
110	11	hassium-core		^0.14
		castle-game		^0.16.1
	3	specs_transform		^0.15
	2	specs_camera		^0.15
		rust-sokoban		^0.17.0
	2	specs_time		^0.15
	1	rhusics-ecs		^0.12
		component_group		^0.16
	1	specs_sprite		^0.14
		specs-task		^0.16.0
	7	specs_bundler		>=0.15
		atomecs		^0.17.0
	3	specs-visitor		^0.14.3
	1	topaz		^0.10.0
		rocket-game		^0.16.1
		tin		^0.14.3
		arcs		^0.15
	1	altv-core		^0.16.1
	2	lime-render		=0.11.0-alpha5
		pong-cli		^0.15.1
		specs-mirror		^0.12.0
		specs-static		^0.14
		tin-lang		^0.14.1
	1	specs_scene_graph		^0.15
	2	specs-blit		^0.16.1
		dot_vox_amethyst		^0.12
		planetkit		^0.10.0
	14	sardonyx_core		^0.15
		specs_messenger		^0.11
		z-buffer-game		^0.14.3
		quicksilver-utils-ecs		^0.15
	2	specs_guided_join		>=0.9
		ultra_tournament		^0.16.1
		specs_engine		^0.7.0
		specs-physics		^0.14.3
		pegasus		^0.7
150	1	texel_types	optional	^0.20
	2	rhusics-core	optional	^0.14
		rhusics	optional	^0.10
		sdl2-extras	optional	^0.14.1
		assets	dev	^0.14
	2	specs-visitor-derive	dev	^0.14.3
		zvxryb-broadphase	dev	^0.16.0
		specs_declaration	dev	^0.16.1
		synco	dev	^0.16