• Modrinth: Download
• CurseForge: Download
• GitHub: 1.7.10, 1.12.2

This version contains a proper fix for CVE-2023-37261: SSRF to cloud (f.e. AWS, GCP, Azure) service metadata services (IMDS) and local IPv6 addresses not blocked by default, as well as enhancements to the Internet Card's connection filtering system. As such, upgrading to this version is considered essential in particular for server administrators.

Special thanks to Jonathan Leitschuh for bringing this issue to our attention.

A detailed write-up about the vulnerability can be found at this link - what follows is a simplified explanation.

The vulnerability concerns omissions in OpenComputers's packet filtering rules, in particular:

• The list of "local" IPv4 addresses blocked in OpenComputers by default was incomplete, and did not cover many regions which do not belong to the public Internet, including typical metadata addresses used by cloud services.
• OpenComputers's Internet Card featured no IPv6 address filtering mechanism whatsoever.

These two omissions allow an attacker to make HTTP and TCP requests on the server's local network (be it through the non-blocked IPv4 addresses or through IPv6 addresses) using a Computer with an Internet Card. Depending on the hosting provider used, other services available on the private network, and any potential other vulnerabilities, this can be used as a launching point for retrieving sensitive exploitation or probing

This issue affects every version of OpenComputers with an Internet Card. This includes versions for Minecraft 1.6.x, 1.8.9, 1.10.2 and 1.11.2, for which we cannot currently release satisfactory updated versions due to tooling limitations and time constraints.

The best solution is to update the mod to OpenComputers 1.8.3, if possible in your situation (you control the modpack and are on a supported Minecraft version). Users of the "GregTech: New Horizons" modpack will receive an update separately and are advised to follow the modpack's announcements. Other than that, here is a list of alternative mitigations that do not require an update:

• (If you're using OpenComputers 1.2.x, please update. That version has many more long-patched holes.)
• Using the allow list ("internet.whitelist") to explicitly list allowed domains and IPs.
• Disabling the Internet Card completely.
• Adding the following entries to the block list ("internet.blacklist" option) - Note that "224.0.0.0/3" has a side effect of blocking all IPv6 accesses, due to the way IPv6 address handling is implemented in OpenComputers >= 1.3.0, <= 1.8.2:

      "100.64.0.0/10",
      "169.254.0.0/16",
      "192.0.0.0/24",
      "192.0.2.0/24",
      "198.18.0.0/15",
      "198.51.100.0/24",
      "203.0.113.0/24",
      "224.0.0.0/3"

• a screen renderer rewrite, with major performance boosts;
• updates to JNLua and LuaJ, fixing bugs and significantly improving performance;
• Lua 5.4.0 support.

For the purpose of testing these changes as a way to see if they are ready for mass adoption, I've created a fork of OpenComputers called OC-Staging. It is available right here to download. The more people give their feedback (even if it's as simple as "I've ran it on my server, no problems found!"), the sooner we can bring those changes and improvements to upstream - and also, free resources to working on more exciting changes!

To give feedback, please post in the feedback thread or report bugs on the issue tracker. You can also find me on the #oc IRC on EsperNet.

Forum access over the past few days

You may have tried to access the forums over the last few days (13th - 15th of January, 2020) and been met with a message that read something like "Forums are currently offline due to database corruption".
Whilst the forums are now back up again, the database corruption is still here. I'll get into the specifics in a bit but first a bit of context:

Context:

Over the period of the last month, I have been migrating to a new (and cheaper) dedicated server. The forums' files were moved over last weekend but they've been pointing at my database cluster for the past few weeks. Unfortunately, what wasn't apparent to me at the time (and I only realised it yesterday), is that the OC Forums' Database has a mix of InnoDB tables (good, they can replicate) and MyISAM tables (bad, they don't replicate).
This has resulted in the database servers printing to their respective consoles, that various tables within the Forum's database are marked as crashed and should be repaired.
After a while (or a few requests to the same table, I'm not entirely sure what causes it), it also causes the node that was being accessed to completely crash out, resulting in cutting off anything else that also happened to be using that node at the time. I've limited the forums to one node so the impact is lessened, but it still takes some time when Systemd restarts the downed node and gets it re-synced with the surviving node.
I've also tried repairing the tables using various mysqlcheck commands, which didn't succeed. I found an option in the config to use "InnoDB" as the table storage method, but any combination of activating that and converting the MyISAM tables to InnoDB ones just ends up in either more crashes or stuff not even loading at all. Nothing I have tried is getting it back to how it was before all my migrations started a month ago.

I do have some backups, but they're either from over a month ago, or already contain the corruption. Going forward, there'll be daily snapshots of the database nodes, but that doesn't help fix things retroactively sadly.

What's the TL;DR?

As it stands right now, the databases are corrupted and the frequency of the crashes is only going to get worse. One of the tasks that is currently "stuck" (and trying to manually run kills the database) is the cache clearing process. The table it accesses is a MyISAM-backed one.
With no way to convert the tables or fix the corruption and the only way to "back up" the data of the forum is to take a snapshot of the (corrupted) database, there isn't a lot of options to be able to do a backup-wipe-and-reload whilst keeping all the data.

Future plans and fixes

To those of you who have been giving some domains towards the license costs, Thank you! They are a good help. The amount on the sidebar is currently a little off because trying to update the value end up killing the Database node, which is what alerted me to this issue in the first place (it doesn't auto-update annoyingly).

So what's the plan?

Right now? I honestly don't know. I'm contemplating switching to a different forum software, preferably something free/open source. But moving all the topics, discussions and userdata over is going to be a pain, even more so when the database is in a fragile state.
I was looking into seeing if I could get the Wayback Machine to snapshot the entirety of the forums, but their site for snap-shotting everything confused me. (If you know more about this, please @Lizzian me on either the Discord guild or IRC). AFAIK the Wayback Machine allows you to snapshot single pages, so if you want to snapshot random pages/threads, please do.

I'll be leaving this topic open for replies (if permissions allow you to reply, I don't know if you can and the database might die again if I try to look), so if you have any questions either reply to this thread or poke me on IRC/Discord.

In writing all of the above, the database node that the forums is pointing to has died a total of 5 times so far and even made the container that the node was running in crash.

Edit as of 24th of January: I think I have possibly fixed some of the issues? The cache table (which was at a whopping 18GB or so when I was trying to fiddle with stuff last week) has now been manually cleared out. Had to do that 2k rows at a time or the mysql client and server got killed for exceeding the container's allocated RAM amount. The tasks are now running smoothly and so far (it's only been 10 minutes since i did it) there have been no errors in the console!

Update as of the 26th of February: It would appear that the forums has deleted my last two updates to this post and also asked me to "update" to the latest version again today, despite me doing it yesterday....
I am confident that the mix of MyISAM and InnoDB tables are to cause for this weirdness. I am now going to look at replacements. In the mean time, please make notes of stuff you post cause it could end up going poof

  

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

New Features/Support

This will be the last version for Minecraft 1.11.2. Minecraft 1.7.10, 1.10.2, and 1.12.2 will keep receiving updates.

• Added: Barcode reader upgrade! (AmandaCameron)
  • An Analyzer can now be installed in a Tablet as an upgrade.
  • Provides the barcode_reader component.
  • When clicking on a block with a tablet containing this upgrade, the tablet_use event will contain information the Analyzer would normally reveal.
  • This allows getting components' addresses into OC directly by clicking on blocks.
• Added: Config option to set max signal queue size (default 256, the same as before).
  • Signals pushed to the computer when the queue is full are dropped.
• Added: Allow different HTTP request methods in internet.request (the method to use is now the fourth optional argument).
• Added: You can now install Angel Upgrades in drones (Minecraft 1.12 only).
• Added: Chargers can now charge items in nearby players' inventories.
• Added: Experience Upgrade now shows its level in its tooltip (Minecraft 1.12 only).
• Added: Extended item information to Thaumcraft Essentia Jars on Minecraft 1.12 (seebs)
• Added: Support for SimpleLogic bundled cables on Minecraft 1.12. (asiekierka)
• Added: Re-added Wireless Redstone (ChickenBones Edition) support on Minecraft 1.12.
• Misc: Hide bounding box wireframe on screens while not sneaking
• Misc: More robot names.
• Misc: Updated the chinese translation of the manual. (3TUSK, ZeroAurora, JackyWangMislantiaJnirvana)
• Changed: Cleaned up some wording in the config file.
• Changed: gpu.bind is now faster.
• Changed: computer.pushSignal now accepts tables of simple key-value pairs, but not nested tables.
• Changed: APU tiers now correspond to their CPU tiers.
• Changed: Putting unmanaged hard drives into a Raid now forces them into managed mode along with wiping them.
• Fixed: Robots being unable to use buckets.
• Fixed: Fluid dupe bug that I will not explain to you.
• Fixed: Tier 2 wireless network card not receiving wired messages.
• Fixed: Return value of robot.swing when the block breaks too fast.
• Fixed: Server racks not sending messages to mountables quickly enough.
• Fixed: Relays not displaying traffic accurately.
• Fixed: Relay message relaying issues.
• Fixed: itemDamageRate config option set to 0 not working. (svitoos)
• Fixed: Crash with hologram.copy.
• Fixed: Geolyzer's isSunVisible.
• Fixed: Crash with remote terminals.
• Fixed: A Robot without inventory deleting the items it drops.
• Fixed: too long without yielding sometimes not triggering when it should.
• Fixed: Crash when blowing up a computer while code is running.
• Fixed: Another fluid dupe bug that I will definitely not explain to you either. Stop asking.
• Fixed: Available architectures not always being what they should be.
• Fixed: Crashes in AE2 integration.
• Fixed: The AE2 ME Interface part not having network control.
• Fixed: AE2 ME cells not having all intended information on inspection. (wkalinin)
• Fixed: Crash with AE2 when power usage is disabled.
• Fixed: AE2 interface not being recognized as components when channels are disabled.
• Fixed: Some AE2 integration not working on 1.7.10. (wkalinin)
• Fixed: Another crash with AE2 when power usage is disabled.
• Fixed: Specific AE2 integration being very slow.
• Fixed: Crash with IC2 Classic.

OpenOS fixes/improvements

• Fixed: Error related to installing OPPM.
• Fixed: OpenOS timers being starved during blocking pulls.
• Fixed: reset alias to reset the screen resolution to its maximum.
• Fixed: Certain TCP connections in Network loot disk
• Fixed: Various vt100 fixes
• Fixed: Now errors properly on using print with bad __string metamethods

List of contributors

payonel,
AmandaCameron, wkalinin,
LizzyTrickster, svitoos,
kchanakira, seebs,
asiekierka,
3TUSK, ZeroAurora,
JackyWangMislantiaJnirvana

  

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

New Features/Support

• Misc: when powering on, drones may fly a bit higher
  • will fly a above their starting block to get above nonfull blocks (such as chests)
• Misc: more robot names
• Misc: robot/drone swing respects harvestability of block vs tool
• Fixed: zero sized files (bufferChanges failing to do its job)
• Fixed: client crash when using remote terminal out of range
• Fixed: inventory controllers now honor specified target slot
• Fixed: T1 wireless cards now properly ignore wired messages
• Fixed: waila integration by checking for nulls with relay block
• Fixed: practical logisitics integration by not passing null for EnumFacing
• Fixed: locking items in hotbar when gui is open
• Fixed: some container names localized

OpenOS fixes/improvements

• Fixed: fixed event timing issues when pulling smaller timeouts than a current timer
• Added: tty handles '\v' code to move cursor down one line
• Misc: some openos cleanup
• Misc: more memory savings
• Misc: slightly faster boot up times

List of contributors

payonel, Wilma456
Anar Abdullayev, TheCodex6824

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

New Features/Support

• Misc: Greatly improved Lua execution speed (asiekierka)
  • That means OC now executes Lua code roughly 70% faster than before.
• Misc: Improved Filesystem and block data saving performance
  • Saving computers to disk is now anything between 5 and 500 times faster than before, depending on your system. Maybe even more.
• Added: The Net Splitter is now a net_splitter component
  • This allows using computers to connect and disconnect various parts of your network.
  • Make sure not to accidentally disconnect your controller!
• Added: New feature for filesystems: Locked mode!
  • A locked filesystem is read-only and cannot be unlocked unless recrafted or its mode is switched between managed and unmanaged, either action wiping the drive.
  • The name of the player who locked it is shown in the tooltip, allowing authenticated sharing of data.
• Added: Bundled redstone support for ComputerCraft (SquidDev)
• Added: debug.getlocal and debug.getupvalue
  • They only return the name of the variable, and nothing else.
• Added: isSunVisible, canSeeSky, and detect to geolyzers
• Added: Allow using morse code patterns like .-. in computer.beep
• Added: redstone component's setOutput can now accept values larger than 15
• Added: Allow the keyboard to connect to screens in more ways than before, e.g. facing a side of the screen other than its front
• Added: Readded Project Red support on Minecraft 1.12 (BrisingrAerowing)
• Added: Driver for the Reactor Chamber from IC2
• Added: Inventory GUI for the rack-mounted disk drives
  • Can be accessed either by clicking on the rack or by right clicking the drive in your inventory.
• Added: getMerchantId to trade offers from the Trading Upgrade to help with sorting them
• Added: Readded AE2 power support on Minecraft 1.12, meaning you can now power your computers directly off the ME network again.
• Added: scanContentsAt to debug card
• Added: More accessible information from Draconic Evolution items
• Added: Waypoints can now be placed facing up or down
• Added: You can now craft two linked cards together to link them to one another
  • This will unlink them from any previously connected Linked Card.
  • The link channel is also exposed as a property on the item that transposers etc. can read, meaning that you can easily manage multiple linked cards.
• Added: Allow setFrequency on owned Ender Storage chests (payonel and amesgen)
• Added: You can now trigger wake-on-LAN over Linked Cards
• Added: chunkloaderDimensionBlacklist and chunkloaderDimensionWhitelist to config for (dis)allowing certain dimensions for the chunkloader upgrade
• Added: disk_drive.media function that returns the address of the inserted floppy disk
• Added: Forge Energy support to items
  • Battery upgrades, tablets, and hover boots can be charged in Forge Energy compatible devices
  • Battery upgrades also support power extraction, allowing them to recharge Forge Energy devices acting as normal batteries
• Added: The Analyzer now reports the internal components of an Adapter block when right-clicked
• Changed: redstone_changed event for bundled signals
  • Now includes the colour that changed, and only reports the old and new values for that colour
• Changed: The order in which cases are filled with components is now based on the slot tiers
• Changed: OpenComputers is now a lot more quiet in the server log. (kmecpp)
• Changed: robot.suck, robot.suckFromSlot, and transposer.transferItem return values
  • Instead of true, they now return the number of transferred items on success.
• Changed: Use less annoying particles for nanomachines
• Changed: Increased default number of platters in an (unmanaged) Tier 3 Hard Drive from 6 to 8
  • You will have to update an existing config yourself by changing hddPlatterCounts.
• Misc: Improved cable rendering (SquidDev)
• Misc: Robot inventories should now be compatible with even more modded inventory manipulation things
• Misc: Robot Crafting (the Crafting Upgrade) should now be compatible with even more modded recipes
• Misc: Screens should now stop working a lot less on server restarts etc. and be generally a lot more robust
• Misc: Robot swing and use should now be a lot more robust and work with a lot more modded items like Hammers and Bows from Tinkers' Construct
• Misc: Robot tank interactions should now work well with a wide range of modded tanks.
• Misc: Improved chunkloader upgrade (svitoos)
  • Chunkloaders are now allowed in Microcontrollers.
• Misc: Added more unicode glyphs to font (asiekierka)
• Misc: The default Lua EEPROM now uses less RAM
• Fixed: Inventory loss during minecraft server crashes
• Fixed: Crash when placing microcontroller
• Fixed: Allow the robot to swing at anything that would block its movement
• Fixed: oc_nanomachines or oc_nm command not always working on servers
• Fixed: Item duplication bug involving robots and voodoo magic
• Fixed: Robot move commands not always actually returning whether the robot really moved or not
• Fixed: Forcing the use of the LuaJ architecture not forcing the use of the LuaJ architecture
• Fixed: transferItem checking the wrong side (cyb0124)
• Fixed: "Unknown error" when transfering fluid to certain machines
• Fixed: Item duplication bug involving drones and Wither voodoo magic
• Fixed: Potential error with IC2 on launch
• Fixed: Robots eating items they shouldn't eat when crafting
• Fixed: Angel Upgrade not doing the one job it had
• Fixed: Robots being really bad at trading with villagers. They were sent to business school so now they are a lot better at it.
• Fixed: Robots forgetting how to move
• Fixed: Item duplication bug involving robots and drones doing shady business with one another
• Fixed: Network floppy disk not installing
• Fixed: Fluid duplication bug involving robots being bad at draining fluids
• Fixed: Drones getting funky after a wake-on-LAN
• Fixed: Weird item update glitches involving robots and certain blocks like AE2 Interfaces
• Fixed: Item duplication bugs involving EEPROMs' desire to behave like quantum particles
• Fixed: Various fixes to AE2 integration
  • slot parameter in exportIntoSlot of the Export Bus is now an optional parameter
• Fixed: Crash with Applied Llamagistics
• Fixed: Crashes when you try to spawn computers by... unconventional means
• Fixed: Setting enableNanomachinePfx to false in the config not actually doing anything
• Fixed: When a robot gains experience, it now properly triggers modded effects that happen on XP Orb pickup
• Fixed: Confusing Analyzer reports on computers that are shut down
• Fixed: Microcontrollers now properly shutting down internal components
• Fixed: Leash upgrade erroring for addon developers (josephcsible)
• Fixed: World Sensor Card crafting recipe on Minecraft 1.10 and above
• Fixed: Client crash involving cables and chunk loading (thiakil)
• Fixed: Tablet screen freezing on certain events
• Fixed: Terminal servers not properly connecting their Remote Terminals
• Fixed: Lightning issues with ShaderMod (paulhobbel)

OpenOS fixes/improvements

• Added: reset command that clears the screen and resets the resolution to maximum
• Added: rc errors are now being logged to /tmp/event.log
• Added: -f option to cp
• Added: aliases as part of tab complete in shell
• Added: devfs psuedo files can now be zero-size
• Added: Allow processes to handle hard interrupts
  • The process metadata now contains a signal field that is triggered on hard interrupts
• Added: Support for \b and \r characters to tty
• Added: Cut and Uncut to edit (AntiBlueQuirk)
  • Ctrl+K to cut, Ctrl+U to insert a line
• Misc: tty and cursor logic separated, reducing memory cost for custom cursor behavior with term options
• Misc: Improved command substitution, now more like Linux sh
• Misc: less is now the program used for man
• Fixed: Various vt100 fixes
• Fixed: Processes now close file handles on exit
• Fixed: Autorun on read-only filesystems
• Fixed: Crash in edit

List of contributors

payonel, Vexatos,
asiekierka, SquidDev,
kmecpp, BrisingrAerowing,
cyb0124, svitoos,
AntiBlueQuirk, josephcsible,
amesgen, thiakil, paulhobbel

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

New Features/Support

• Changed: Diamond Chip recipe
  • You now require cutting wire to cut the diamond.
• Added: ExtraCells and Mekanism integration (DrummerMC) [1.10.2]
• Added: ComputerCraft support is back [1.12.2]
• Fixed: Accessing disk drives and other containers in Tablets [1.11.2]
• Fixed: Putting items into Database Upgrades [1.11.2]
• Fixed: IC2-Classic mod incompatibility
• Added: Allow getting yaw of player through tablet component (ChristoCoder)
• Fixed: Microcontroller interactions with EnderIO item conduits
• Added: Maximum packet parts to device info of modems (Linked and Network Cards)
• Fixed: Drones now properly work with chunkloader upgrades (TheCodex6824)
• Fixed: Tablets not turning off their screen properly (AmandaCameron)
• Fixed: Motion Sensor line of sight
• Misc: Updated various translations
  • Russian (S0ZDATEL, Fingercomp, makkarpov)
  • Traditional Chinese (mymagadsl)
  • German (Nex4rius)

OpenOS fixes/improvements

• Fixed: Issues with booting OpenOS on very slow servers
• Added: Allow custom error objects to print to stderr
• Added: Allow mount points to use existing directories
• Added: Bind mounts to mount a directory as another directory
• Fixed: Allow .shrc to use tty stdin
• Added: Lua REPL input is now parsed with an implicit return (SquidDev)
  • Adding a = in front of the code to explicitly add it still works.
• Changed: Shell history no longer adds items if they are duplicates (SquidDev)
• Fixed: CTCP messages in IRC client (Michiyo, skyem123)
• Fixed: Reverse lookup of keys in Keyboard API
• Fixed: event.cancel and event.ignore
• Fixed: Protect lua shell from serialization OOM failure
• Fixed: Too long without yielding error in /bin/tree (LeshaInc)
• Misc: Improvements to the vt100 library
• Misc: Various minor improvements to reduce memory usage

List of contributors

payonel, Vexatos,
S0ZDATEL, Fingercomp, makkarpov,
mymagadsl, Nex4rius, ChristoCoder,
DrummerMC, LeshaInc, SquidDev, Michiyo,
josephcsible, skyem123, TheCodex6824,
AmandaCameron, Pwootage

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

New Features/Support

• Added: 1.12 and 1.11 support
• Added: New OpenOS thread library
• Added: Support for forge energy.
• Added: Re-add ComputerCraft integration.
• Added: Re-add Project: Red integration.
• Added: Re-add WR-CBE Integration (thanks gamax92)
• Added: Re-add IC2 integration.
• Added: Re-add Waila/Hwyla integration.
• Added: Motion Sensor is now an upgrade
• Added: Converter for fluid tank properties.
• Added: zh_CN and ru_RU localization
• Added: AE2 Integration (thanks Leon)

OpenOS fix/improvements

• Fixed: numerous areas of code cleanup
• Fixed: memory cost reduced, Now requires ~140kB to boot to shell prompt
• Fixed: boot time reduced dramatically
• Fixed: /bin/ls fix for -p option to show / on dirs
• Fixed: /lib/event fix for dispatching signals to timers
• Fixed: /lib/keyboard reduced memory cost and fixed support for numpad in terminal
• Fixed: loadfile fix to allow relative paths
• Added: Separate core tty code from /lib/term, added vt100 support
• Fixed: ENV and _G fixes for load, lua shell, and shell environment
• Fixed: edge case in quoted whitespace in shell commands respected
• Fixed: mv and cp error message conformance and cleanup
• Fixed: install tool fixes
• Fixed: fix exit code issues with ls and piping
• Added: pastebin updates for https
• Fixed: serialization performance greatly improved
• Added: ls coloring now uses vt100 color codes in LS_COLORS
• Added: new file listing tool: /bin/tree (thanks LeshaInc)

Other fixes/improvements

• Fixed: robot screen freeze issue
• Fixed: iron nuggets removed (vanilla has it now)
• Fixed: Little bit of scala cleanup, API refactoring
• Added: getAllStacks and getInventoryName to transposers and inventory controller upgrades for better inventory management. (thanks thiakil)
• Added: More robots names (thanks Nexarius)
• Added: Mouse release sends drop event even without drag
• Fixed: Made tank controllers work better with blocks that provide multiple tanks.
• Fixed: filesystem.copy() (#2432) (thanks SDPhantom)
• Fixed: Make wtrunc count missing glyphs as 1 (thanks gamax92)
• Fixed: Infinite loop in manual.
• Fixed: Robots not being able to use all items properly.
• Fixed: case where computers could run minecraft host machine cpu too high
• Fixed: table returned by getAllStacks().getAll() being 0-based.
• Fixed: Equipment slot actions.
• Fixed: bounding box issues that affect things like waypoints

List of contributors

Sangar, payonel, Vexatos
modmuss50, SDPhantom, thiakil
gamax92, asiekierka, Wilma456, stone3311
Nexarius, loveyanbei, 28Smiles, cyber01, LeshaInc

As always, remember to make a backup of your world.

Got an issue? Post it on the GitHub Issue Tracker or the support section of the forums.

Download on Curse.

Changes in this release:

• Added: Made wrenching an Adapter's side turn it off. (Vexatos)
• Added: metadata-ignoring fuzzy option to robot.compare. (Vexatos)
• Added: SignChangeEvent to sign upgrade (makkarpov)
• Added: whitelisting of debug card owners. (makkarpov)
• Added: [MC1.8.9+] Robots, Inventory Controller Upgrades, Transposers, etc. now support blocks and inventories with IItemHandler capabilities (Vexatos)
• Added: [MC1.10] Scoreboard class modification functions to the debug card (RussellLong)
• Added: [MC1.10] Re-added EnderIO integration and added Bundled Redstone support for EnderIO's Insulated Redstone Conduits (Vexatos)
• Changed: Allow multiple environment providers to return environments for the same block (Vexatos)
• Changed: massively major OpenOS update (payonel)
• Changed: Updated Russian translation (MoonlightOwl)
• Fixed: Allow draining dynamic liquid blocks if they're "full"
• Fixed: bit32.lrotate and bit32.rrotate (fingercomp)
• Fixed: broken c and e time formatting flags (gamax92)
• Fixed: Check if the world is remote before killing the drone (joserobjr)
• Fixed: disable fs.remove of devfs files (payonel)
• Fixed: Don't consume XP items when upgrade is at max level.
• Fixed: incompatibility with Sponge in robot movement logic. (Vexatos)
• Fixed: kernel naming in LuaJ (gamax92)
• Fixed: Make Machine.signal less picky about the types of maps it accepts.
• Fixed: Methods in ItemInventoryControl not doing what they are supposed to (Vexatos)
• Fixed: NPE when other mods request tooltips before font renderer is ready
• Fixed: os.time and os.date affected by host timezone (gamax92)
• Fixed: Power mountables without requiring them to be connected to the outside.
• Fixed: RedLogic redstone input reading. (Vexatos)
• Fixed: Validate NBT address of FileSystems (gamax92)
• Fixed: [MC1.8.9+] Newly placed cases having zero energy buffer capacity.

Hotfix 1 fixes:

• Fixed: already existing adapters in the world having their sides closed. Not really important, except if you use the adapter for anything... critical. But who'd do that?

• Added: Rack mountable floppy disk drive.
• Added: Ability to interact with some item inventories using the inventory controller.
• Added: Support for RotaryCraft power (uses same conversion ratio as AE2).
• Added: Possiblity to define a viewport on GPUs, allowing to copy data from off-screen for performance trickery.
• Added: Cables will now remember which color they have and can also be dyed by being crafted with a dye.
• Added: Reenabled IC2 integration on 1.8.9.
• Added: Possibility to cycle through loot disks by crafting them with a wrench (wrench is not consumed).
• Added: Device info API. Devices may now provide generic information, queryable via computer.getDeviceInfo().
• Added: More helpful messages when trying to run a missing program (when possible) via the new computer.getProgramLocations() API.
• Added: Trading upgrade, allows trading with villagers (Inari-Whitebear).
• Added: Allow defining custom HTTP request headers (invliD).
• Added: debug.playSoundAt (gamax92).
• Added: Parameter to specify AE2 CPU to use when requesting crafting (habnabit).
• Added: ThaumicEnergistics integration (DrummerMC).
• Added: Dyeing of hover boots to change light color (Vexatos).
• Added: Network activity indicator on servers (magik6k).
• Added: Brazilian Portuguese translation (hws689).
• Changed: Racks have been revamped. They can now house other things than servers and how things get connected is a lot more flexible now.
• Changed: Remote terminals are now bound to remote terminal servers which are a new type of rack mountable.
• Changed: Disk drives now also provide a component allowing to check for floppy presence and ejecting floppies.
• Changed: Geolyzer scan area can now be customized to be an arbitrary cube instead of only columns. Total volume must not exceed column volume, though.
• Changed: A couple of recipes. Introduced diamond shards/chips to avoid the massive diamond cost ramping of higher tier items.
• Changed: New font for screens, unscii, sporting much better readability (asie). If you absolutely detest it even after giving it a fair chance, you can restore the old unifont one using a resource pack.
• Changed: OpenOS got a major overhaul, in particular term related things, and also a few new built-in programs (payonel). This would deserve a changelog of its own, really...
• Fixed: Pseudo-hangs when crafting a massive amount of a recipe that produces the same output as it has as input.
• Fixed: A few GregTech recipes and related issues.
• Fixed: Userdata handling in LuaJ.
• Fixed: Power conversion for a couple of mods, oops.
• Fixed: Performance issues caused by compressing data sent to clients too much.
• Fixed: Performance issues caused by disk I/O when sending machine descriptor packets to clients (thanks to Player for pointing those two out to me; we need more BTMs).
• Fixed: Updated LuaJ and fixed a few more bugs in it (gamax92).
• Fixed: Mystcraft integration (ItsTheKais).
• Fixed: Updated BC wrench integration.
• Fixed: Robots being able to suck up certain flowing fluid blocks (effectively a liquid dupe bug).
• Fixed: Generator eating container items if they weren't taken out in time.
• Fixed: Disassembling tablets not dropping upgrade containers installed in them.
• Fixed: Some broken saving logic in 1.8+ due to subtle lifecycle callback order changes.
• Fixed: Fixed MCUs passing out messages other than network messages.
• [API] Added: Added sided version of block drivers, deprecated non-sided one.
• [API] Added: Processors/Memory may now define a provided call budget.
• [API] Changed: Geolyzer related events due to custom scan area.

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As always, remember to make a backup of your world before updating.

Download on Curse.

As always, remember to make a backup of your world before updating.

Download on Curse.

• Added: TIS-3D integration.
• Changed: Updated Lua 5.3 libs.

As always, remember to make a backup of your world before updating.

Download on Curse.

These forums will be down for up to an hour starting 1200 hours on Monday the 7th of December.

I will also be putting the forums in read only mode up to an hour before they go offline.

The reason for this down time is because I need to apply some updates to the server hosting this forum. If you would like to be notified about any changes whilst the forums are down please join the IRC channel #oc on EsperNet.

Sorry for any inconvenience caused.

~Liz

Click here to view the article

These forums will be down for up to an hour starting 1200 hours on Monday the 7th of December.

I will also be putting the forums in read only mode up to an hour before they go offline.

The reason for this down time is because I need to apply some updates to the server hosting this forum. If you would like to be notified about any changes whilst the forums are down please join the IRC channel #oc on EsperNet.

Sorry for any inconvenience caused.

~Liz

This post has been promoted to an article

OpenComputers 1.5.19 is out! All the small things...

As always, remember to make a backup of your world before updating.

Download on Curse.

• Added: Capability for redstone component to read comparator input.
• Added: Crashed machines (computers, MCUs and servers) will now blink their power indicator red, instead of just turning it off.
• Added: Disk usage program for OpenOS (payonel).
• Added: Initial BuildCraft Builder compatibiltiy (once BC 7.2 releases).
• Added: Nanomachine configurations can now be saved to a nanomachine item in the player's inventory.
• Added: Option to specify from which side to interact with inventories when using the inventory controller (for "sneaky" insertion/extraction, as it's often called).
• Added: RotaryCraft integration for Jetpacks (additional item stack information) (Voidi).
• Added: Signal when content of tank upgrades changes.
• Changed: Alias utility for OpenOS (potentially breaking) (payonel).
• Changed: Made cd program more POSIX compliant (payonel).
• Changed: Nanomachines now change their address when a new set is consumed.
• Fixed: Compatibility issue with Magnanimous Tools.
• Fixed: Compatibility issue with Sponge.
• Fixed: Debug card's NBT editing not working in non-dev.
• Fixed: Potential (non-crashing) NPE in crafting event handler.
• Fixed: Robots refusing to fly over the void, even with a T2 hover upgrade.
• Fixed: Shell tab completion for ./ (payonel).
• Fixed: Some recipes using item names instead of oredict names (specifically, oredict names of items not by default registered in the oredict).

As always, remember to make a backup of your world before updating.

Download on Curse.

• Added: Nanomachines, an energy based buff / effect system.
• Added: Arbitrary rotation for tier two hologram projectors, static and animated.
• Added: Transposer can be used as an upgrade in Microcontrollers.
• Changed: Improved tab completion behavior in shell (payonel).
• Changed: Drones must now be "itemized" by sneak-activating them with a wrench (instead of bare-handed). Sneak-activating them otherwise powers them on now, like most other devices. This now allows robots/drones to start drones.
• Fixed: Potential dupe bug when having robots use ExU drums.
• Fixed: Behavior of os.time / os.date.
• Fixed: Some more non-critical internal stuff.
• Fixed: Potential NPE when robots tried to use the analyzer.
• Fixed: Render issues with certain items when held by robots.
• [MC1.8] Fixed: Lighting issue when hovering GUI buttons.

Edit 2: Obviously, right after I push out the first hotfix, there's another critical issue... make sure you have hotfix 2, please.

• Added: Transposer block, allows computer controlled moving of items or fluids between adjacent blocks.
• Added: AgriCraft integration (LordJoda).
• Added: Better Records integration.
• Added: Method to switch CPU architecture automatically (will cause reboot if it changed).
• Added: Parameter in gpu.bind to disable resolution reset (makkarpov).
• Changed: Switches and Access Points are now deprecated, replaced by the Relay, which is basically a switch with a card slot and can be upgraded to support wireless (i.e. behave like an Access Point) or even using a Linked Card.
• Changed: Updated plan9k loot disk (Magik6k).
• Fixed: Very rare issue with agents' inventory interaction (e.g. with AgriCraft Analyzer).
• Fixed: Some more minor issues.

As always, remember to make a backup of your world before updating.

Download on Curse.

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If you have any other suggestions for things to add just drop me a PM

OpenComputers 1.5.14 is out! Metric ton of bug fixes, and a new block!

As always, remember to make a backup of your world before updating.

Download on Curse.

OpenComputers 1.5.13 is out! With it comes the Lua 5.3 architecture as the second official and built-in architecture. That's not all, though, check the change log for more additions.

As always, remember to make a backup of your world before updating.

Download on Curse.

• Added: Lua 5.3 architecture.
• Added: Data card, provides hashing algorithms and inflate/deflate (thanks Kubuxu).
• Added: 3D prints can now be configured to not be collidable, per state, increases print cost though.
• Added: Using an empty string as the texture for a 3D print shape will make it transparent.
• Added: Callback to AE2 interface driver to allow storing items in database upgrade.
• Added: ExtraCells integration (thanks DrummerMC).
• Added: Integration with BC7 Electronic Library to allow saving/loading EEPROMs (requires BC 7.0.9).
• Fixed: Interaction of robots and drones with trapped double-chests.
• Fixed: Neighbors of redstone emitting prints not updating in some scenarios.
• Fixed: Incorrect coordinates in mouse scroll event in scaled GUIs.
• Fixed: Off-by-one in os.date().
• Fixed: Command block driver now properly returns numeric value from executeCommand.
• Fixed: Potential NPE when initializing Microcontrollers.
• Fixed: Updated Project Red screwdiver implementation in Scrench.
• Fixed: Display position of hover boots while sneaking.
• Fixed: Drones producing step sounds when flying too low.
• Fixed: Behavior of /dev/null in robots.
• Fixed: A bunch of typos in the documentation.

To use the Lua 5.3 architecture, shift-rightclick a CPU while holding it in your hand to cycle through available architectures until it says Lua 5.3 in the chat and/or expanded tooltip of the CPU.

If you've been playing with a 1.5.13 dev-build (i.e. one you got from Jenkins), you'll have to manually set the option enableLua53 to true in your config, because it originally wasn't until I did some stability testing.