Reference - versions x.x.1 are for the stable release of Factorio, and versions x.x.2 are for the experimental release
Changelog:

versions 1.0.1&1.0.2 - initial release, no configurability, no modded ammo support

versions 1.1.1&1.1.2 - Added config for changing the stack size of ammo which is already increased in the base mod (all except rail gun and cannon-shell) - Separate config for artillery shells (default 50 rather than 500), also added support for all modded ammo in the affected categories.

versions 1.2.1&1.2.2 - small backend changes, Names and descriptions of settings are now easier to read - also, 0.17.15 support

versions 1.3.1&1.3.2 - complete overhaul, every category of ammo is now configurable separately from each other, as well as adding config for artillery shells stack size inside the artillery turret and wagon (as these are independent from one another) and atomic bombs separately from the other rocket. - also 0.17.21 support, yay!