CoroUtil in FTB Skies 2

FTB Skies 2 1.24.0 ships version 1.21.0-1.3.9 · First seen in 1.15.0

Checked Sep 20, 2026FTB Skies 2 1.24.0Sources: FTB Skies 2 1.24.0 modlist.json

CoroUtil is a mod in FTB Skies 2 1.24.0, where it is version 1.21.0-1.3.9. Shared library mod for Corosus's mods (Summary from the mod's Modrinth page.)

CoroUtil guide for FTB Skies 2

Written for FTB Skies 2 1.22.0 · also fits 1.15.0 to 1.24.0 · updated Oct 13, 2026

Last verified for FTB Skies 2 v1.24.0 on Oct 13, 2026 · text last changed Oct 13, 2026

Also applies to:All the Mods 10: To the Sky 2.0.1 to 2.1.0 FTB Skies 2: Aero 1.0.3 to 1.10.0 FTB StoneBlock 4 1.9.6 to 1.23.0

Sections: 4

3 sections are written for this pack; 1 is shared from another pack's guide.

Every recipe and number here was checked against FTB Skies 2 1.24.0, read from the running game on Oct 13, 2026.

What is CoroUtil?

Same as in the All the Mods 10: To the Sky 2.0.4 guide

CoroUtil is included in this pack as version 1.21.0-1.3.9, shipped as the NeoForge file coroutil-neoforge-1.21.0-1.3.9.jar. The pack lists it as first included in this pack version or earlier.^[1]

Unverified The sources I have don't describe what CoroUtil does in gameplay, so I won't guess. There is no in-jar guidebook and no platform description to draw on. I also found no quests that involve the mod, and it isn't on the ATM Star quest path. You don't need to unlock or craft anything for it as part of the pack's progression.

Until more is confirmed, treat CoroUtil as a background mod that you'll mostly see in the mod list. If you run into it in a crash log or a version check, the version above is the one this pack ships.^[1]

How do you get started with CoroUtil?

1 part

Unverified The sources here show no recipes, items or quests for CoroUtil in this pack, so there is no first-items crafting order to give you. If the pack's quest book covers this mod, that is where you would find it, but the sources here do not show it.

What the pack does set

The one thing the pack's files show for this mod is its General config, which holds the logging switches. Here is how the pack sets them.^[2]

general.useLoggingDebug is false in the pack, so debug logging is off.^[2]
general.useLoggingError is true in the pack, so error logging is on.^[2]
general.useLoggingLog is true in the pack, so general logging is on.^[2]

Tip: These options are about logging. If you are chasing down a problem and want more detail in your logs, the debug option in that config file is the one the pack currently has switched off.^[2]

How does CoroUtil work?

1 part

There isn't much to dig into here, and I'd rather tell you that than invent machines for you. The only thing the sources confirm for CoroUtil in this pack is a small set of logging options in its config file.^[2]

What the pack's config lets you control

The confirmed settings are the logging toggles in the general section of the CoroUtil config file. They decide which kinds of messages the mod writes to the log.^[2]

general.useLoggingDebug is set to false in this pack, so debug logging is off.^[2]
general.useLoggingError is set to true in this pack, so error logging is on.^[2]
general.useLoggingLog is set to true in this pack, so general logging is on. The file's own comment on this option is just "logging".^[2]

Tip: If you're troubleshooting and want more detail in your logs, the debug option is the one that's currently switched off. The config file doesn't say what the debug output contains, so check the log yourself after changing it.^[2]

Unverified Anything beyond these logging options is unconfirmed here: whether CoroUtil has blocks, items or machines in this pack, and how it would interact with power, fluids or automation. No in-jar guidebook, reusable documentation or lang-file descriptions were available to check.

Which CoroUtil config options matter?

The CoroUtil config file you are most likely to open in this pack is General.toml, and the options it lists are all logging switches. Here is how the pack sets them.^[2]

general.useLoggingDebug is set to false, so debug logging is off.^[2]
general.useLoggingError is set to true, so error logging is on.^[2]
general.useLoggingLog is set to true, so general logging is on.^[2]

If you want to change any of these, edit the value in config/CoroUtil/General.toml.^[2]

Sources

All the Mods 10: To the Sky 2.0.4 mod list · pack file
FTB Skies 2 1.22.0 config: config/CoroUtil/General.toml · pack file

Where this guide comes from

Written from what FTB Skies 2 itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.

Guide last verified Oct 13, 2026.

Report wrong info

Version in each release

13 releases, first in 1.15.0

FTB Skies 2	Version	Jar	Where it came from
1.24.0 Oct 12, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.23.0 Sep 24, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.22.0 Sep 3, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.21.1 Jul 29, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.20.1 Jul 29, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.20.0 Jul 27, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.19.0 Jul 24, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.18.2 Jun 21, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.18.1 Jun 16, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.18.0 May 31, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.17.0 May 27, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.16.0 May 13, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release
1.15.0 May 1, 2026	1.21.0-1.3.9	coroutil-neoforge-1.21.0-1.3.9.jar	From the published release

"From pack files" means the list came from the pack's own files; "from the published release" means ForgeBase read the jars of the release itself.

Items and blocks

We can't match this mod to the pack's item list: it registers as coroutil, and the pack's recipe dump has nothing under that name. That means we found nothing, not that the mod adds nothing. Search the item browser

Config options (how FTB Skies 2 sets them)

3 settings this pack ships for the mod. We don't have the mod's own defaults to compare them against yet.

See all 3 settings →

Show settings

Setting	FTB Skies 2 value
`general.useLoggingDebug` - config/CoroUtil/General.toml	false
`general.useLoggingError` - config/CoroUtil/General.toml	true
`general.useLoggingLog` logging config/CoroUtil/General.toml	true

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