Status Update - 9th June 2021 - API-8 Soft Freeze and SpongeVanilla 1.17 Day 1 Experimental...

Status Update - 9th June 2021 - API-8 Soft Freeze and SpongeVanilla 1.17 Day 1 Experimental Builds
Hello all, couple of things to share with you!

Soft Freeze of API-8 for Minecraft 1.16.5


We are pleased to say that we’ve passed our 1st June deadline for any significant breaking changes to API-8, a significant milestone in our march towards Sponge for Minecraft 1.16.5. There has been some confusion in the community about what this means, so let’s clear it up!

As of now, unless it is important for the implementation of the API, no breaking changes will be made. This means that plugin developers should be switching their focus to API-8 and making the changes they need to be able to test against our API without fear of any significant change.

We believe we may need to make minor breaking changes to the Registry API (to make it easier to grab items from it) and the Volume and Schematic API (to support v3 of the Sponge Schematic Specification). Beyond that, we are not expecting anything to break for our users and we will complete the freeze of our API, all being well, early-ish in July.

Once we hard freeze, we’ll release the API as a release version, at which time we’ll ensure that SpongeVanilla is availabe in a beta form - but if you want to try SpongeVanilla for 1.16.5 now, you can grab the latest builds from our Maven repo.

Remember, these builds should be considered unstable, back everything up before you use these!

Get SpongeVanilla for 1.16.5 here, we recommend that you sort the list by version, and then select the latest version at the top - you will then need to download the “universal” jar to get going. We are in the process of completing our replacement download indexing software, SystemOfADownload, we hope to have that up and running soon to make it super easy to access these builds in the future.

An Update on SpongeForge for Minecraft 1.16.5


We are also aware that a lot of you are chomping at the bit for SpongeForge, we have started working on it! You can follow progress on our efforts in getting Sponge and its plugins loading on Forge in the Sponge repo on Github (feature/forge).

However, as we have always said, 90% or so of SF is common with SV. If you want SF, help us out by testing SV and making sure we have the core mechanics right - just play about a bit on SV and let us (and plugin devs, if a plugin you’re using is acting up!) know what’s wrong in the normal way.

Deprecating the SpongeVanilla and SpongeForge repos


This is likely old news to most people, but it’s worth restating as more and more people will be beginning to test and use SpongeVanilla. For API-8 and beyond, SpongeVanilla and SpongeForge sources will remain in the Sponge Github repo. For any issues with SpongeVanilla and SpongeForge for API-8+, please report your issues there, and not on the other repos.

The SpongeVanilla and SpongeForge repos will remain up for our API-7 branches, there are no plans to merge the repos for our older API versions.

SpongeVanilla for Minecraft 1.17


Saving the most exciting news for last, thanks to the hard work of our Sponge Devs, especially @zml and @Morpheus, we are thrilled to announce that we have produced very experimental builds of SpongeVanilla for Minecraft 1.17 on the same day 1.17 was released!


1.172560×1377 590 KB


1.17-21920×1017 536 KB


1.17-31920×1017 180 KB

As you might be able to tell from the screenshots, Sponge for Minecraft 1.17 will run API-9. Version 9 will be very similar to API-8, except API-9 will include, entities and blocks and other features that 1.17 provides. While we do not expect many breaks between API versions 8 and 9, API-9 is not frozen and so if you have a breaking change that missed the API-8 cutoff, consider targeting API-9 instead.

While we have very experimental builds being published to our Maven repo, these builds are even less stable than the 1.16.5 builds and we know there are some significant issues within them. Nevertheless, for the curious and the brave (backup backup backup!), these builds can be downloaded if your interest is with 1.17.

Our focus remains with completing API-8 and releasing SpongeVanilla builds for 1.16.5 before we turn any serious attention towards 1.17 (don’t worry, we’re still going to make sure we get builds for SpongeForge for 1.16.5 out too!). Our ability to run against snapshots and pre-releases enable us to achieve day 1 builds, and this will have a significant impact on our update speed for future releases of Minecraft, including the upcoming Caves and Cliffs Part 2.

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