Try the Commands Troubleshooting and Help page if you get stuff with server errors.
Minecraft Version Notes
The minecraft give command for 1.12 is the last one with block ids. In most cases data is usually 0.
/give <player> <item> [amount] [data] [dataTag]
/give @p iron_shovel 1 0 {"display":{"Name":"Super Shovel"},"ench":[{"id":32,"lvl":5}]}
New Block in Minecraft 1.12 java
Minecraft Versions Permalinks
If you find yourself using a particular version all the time, you can link directly. There is some crossover between versions, so there will be quirks.
Version History
patchUpdated command example in text editor
patchHanging signs block_entity_data id
addedeffects version support to java 1.5, improved bedrock support
addedparticles version support to java 1.8
addedteleport (tp) version support to java 1.0
addedtellraw, title version support to java 1.8
patchbedrock versioning should only have current one version
patch1.12 banner support, color bug fix
patchgive 1.21.4 equipment model field has been renamed to asset_id
patchforce paste in rich text editor, maybe
patchwritten book page import click and hover events not rimporting
patch1.21.5+ text and lore empty array json
patchgive, can place and can break rules to use blocks for the search list
patchgive, updated 1.21.5+ hide additional tooltip
patch1.21.5 give command attribute modifiers ids require quotes
addedparticle generator pale_oak_leaves, tinted_leaves
added1.21.5 items
patchrich text had issues with quotes and backslashes
patch1.21.5 written books on click got to page
addedInitial snapshot for 1.21.5
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(82 More Updates)