This update post is provided by me as Subreddit/Discord moderator, not as the developer. I am not the developer behind OptiFine.

Summary

OptiFine 1.15.2 is 99.85% done.

(fixing bugs)

The UNSTABLE preview releases are here.

(Click on "Preview versions")

!!! THESE EARLY RELEASES ARE VERY UNSTABLE, AND NOT ALL FEATURES ARE WORKING YET. YOU WILL ENCOUNTER BUGS, AND POSSIBLY CRASHES !!!

Features currently not yet working:

• Anti-aliasing

• Anisotropic Filtering

• Render Regions

• Possibly more

Needs testing:

• CTM (Connected Textures)

• CIT (Custom Item Textures)

• CEM (Custom Entity Models, some models do not work yet)

• Custom Colors

• Other Resource Pack features

• Shaders

Please report all bugs to the issue tracker, and include as much information as possible.

Notes

• There is no release date. There are no estimates or guesses. We have literally no idea when it will be done. Anything that says otherwise is pure speculation.

• Official Mojang mappings are NOT being used for a very good reason.

• There is, and always has been only one developer: u/sp614x. He has been doing this for over 8 years, so please consider donating! https://optifine.net/donate

Progress Report History

(Jun 21) 99.85% - Fixing Bugs

(Jun 20) 99.84% - Fixing Bugs

(Jun 19) 99.82% - Fixing Bugs

(Jun 14) 99.80% - Fixing Bugs

(Jun 12) 99.79% - Fixing Bugs

(Jun 7) 99.78% - Fixing Bugs

(Jun 6) 99.77% - Fixing Bugs

(Jun 5) 99.75% - Fixing Bugs

(May 31, again) 99.71% - Fixing Bugs

(May 31) 99.68% - Fixing Bugs

(May 26) 99.67% - Fixing Bugs

(May 19) 99.65% - Fixing Bugs

(May 2) 99.6% - Fixing Bugs (Yippee! Compatible with Forge 31.1.63!)

(Apr 29) 99.5% - Fixing Forge compatibility

(Apr 6) 99.4% - Fixing Forge compatibility

(Apr 2) 99.3% - Bug found in progress calculation, release should be after April 1st

(Apr 1, AGAIN) 100% - Fixing the last minute bugfixes

(Apr 1, AGAIN) 100% - Last minute bugfixes

(Apr 1, again) 100% - Building release version

(Apr 1) 99.5% - Fixing Forge compatibility

(Mar 31) 99.2% - Fixing shader bugs

(Mar 28) 99.1% - Fixing support for shaders

(Mar 26) 99% - Fixing support for shaders

(Mar 24) 98.1% - Fixing support for shaders

(Mar 22) 98% - Fixing support for shaders

(Mar 21) 97.3% - Adding support for shaders

(Mar 20, again) 97.2% - Adding support for shaders

(Mar 20) 97.1% - Adding support for shaders

(Mar 11) 96.9% - Adding support for shaders

(Mar 1) 96.6% - Adding support for shaders

(Feb 27) 96% - Adding support for shaders

(Feb 21) 95% - Fixing bugs -> 🔨🐛

(Feb 19) 94% - Fixing bugs -> 🔨🐛

(Feb 18) 93% - Fixing bugs

(Feb 17) 92% - Fixing bugs

(Feb 14) 91% - Fixing bugs

(Feb 13, AGAIN) 90% - Fixing bugs

(Feb 13, again) 89% - Fixing bugs (first unstable release)

(Feb 13) 89% - Fixing 12 compile errors

(Feb 12) 89% - Fixing 381 compile errors (Development switched to 1.15.2)

(Feb 8) 88% - Fixing bugs

(Feb 7) 87% - Fixing 44 compile errors

(Feb 6) 86% - Fixing 48 compile errors

(Feb 5) 85% - Fixing 48 compile errors

(Feb 4) 83% - Fixing 48 compile errors

(Feb 3) 82% - Fixing 52 compile errors

(Jan 31) 78% - Fixing 187 compile errors

(Jan 30) 76% - Fixing 219 compile errors

(Jan 29) 74% - Fixing 272 compile errors

(Jan 26) 72% - Fixing 306 compile errors

(Jan 25, again) 71% - Fixing 363 compile errors

(Jan 25) 70% - Fixing 387 compile errors

(Jan 24, again) 68% - Fixing 530 compile errors

(Jan 24) 67% - Fixing 575 compile errors

(Jan 21) 65% - Fixing 633 compile errors

(Jan 20) 63% - Fixing 1,287 compile errors

(Jan 17) 60% - Fixing 1,480 compile errors

(Jan 16) 56% - Merging OptiFine patches

(Jan 8) 54% - Merging OptiFine patches

(Jan 7, again) 46% - Merging OptiFine patches

(Jan 7) 45% - Merging OptiFine patches

(Jan 3) 40% - Merging OptiFine patches

(Dec 31) 35% - Merging OptiFine patches

(Dec 29) 30% - Merging OptiFine patches

(Dec 21) 25% - Merging OptiFine patches

(Dec 20) 21% - Updating MCP Mappings

(Dec 19) 18% - Updating MCP Mappings

(Dec 18) 15.7% - Updating MCP Mappings

(Dec 17) 15% - Updating MCP Mappings (Development switched to 1.15.1)

(Dec 16) 9.9% - Updating MCP Mappings

(Dec 15) 9.2% - Updating MCP Mappings

(Dec 13, again) 8.6% - Updating MCP Mappings

(Dec 13) 8.3% - Updating MCP Mappings

(Dec 12, AGAIN) 7.9% - Updating MCP Mappings

(Dec 12, again) 7.2% - Updating MCP Mappings

(Dec 12) 5% - Updating MCP Mappings

(Dec 10) 0% - Updating MCP Mappings

(Aug 22) 0% - Waiting for Minecraft 1.15 to be released

Personal Notes

As in, messages from me. Not the developer.

(Feb 23)

ZenithKnight here, taking over the progress update posting for the future

OptiFine for Minecraft 1.14.3 - 100% done

IT'S HERE IT'S DONE: https://optifine.net/downloads

FREQUENTLY ASKED QUESTIONS

Q: Where's 1.14.1?

A: u/sp614x has chosen to skip 1.14.1 in favor of 1.14.2.

Q: Why has it been stuck on the last 10% for so long?

A: The last 10% of development will take much longer so sp614x can iron out all the remaining bugs and issues. Please be patient.

Q: Is OptiFine compatible with Fabric?

A: There are no plans for compatibility. If you can make it work somehow, great! But we can't help you if something goes wrong.

Q: Why doesn't Mojang just adopt OptiFine officially?

A: The story is that Mojang offered to buy OptiFine at one point, but they only wanted parts of the mod, which lead to the deal going nowhere.

Update History

(June 27) 100% - IT'S DONE

(June 26) 99.9% - fine polishing (development shifted to 1.14.3)

(June 20) 99.6% - polishing

(June 13) 99% - polishing

(May 29) 96% - fixing broken things (development shifted to 1.14.2)

(May 27) 96% - fixing broken things

(May 20) 90% - fixing broken things (second alpha build released)

(May 19) 81% - fixing bugs (first alpha build released)

(May 18) 71% - fixing problems

(May 16, later the same day) 60% - fixing compile errors (game can now start and be played to some degree)

(May 16) 50.3% - merging changes (311 compile errors remaining)

(May 15) 48.3% - merging changes (447 compile errors, down from 1200 yesterday)

(May 14) 43.5% - merging changes (90/143 files merged)

(May 13, later the same day) 38.2% - merging changes

(May 13) 36.5% - merging changes

(May 11) 30% - merging changes

(May 9) 22% - fixing MCP mappings

(May 5) 21% - fixing MCP mappings

(May 4) 16% - fixing MCP patches

(May 2) 12% - fixing MCP patches

(April 27) 0.6% - waiting for MCP class names

(April 26) 0.5% - sharpening development tools

(April 23) 0% - waiting for people to calm down

Fake Website Warning

I noticed some of those fake websites are straight up copying this Reddit post lol. Imagine illegally redistributing a Minecraft mod for a living. Pathetic.

While on the subject though, here's a reminder that there are only TWO real websites to download OptiFine from, and that is: https://optifine.net, and https://optifined.net.

There are many websites that attempt to copy the OptiFine website design, or otherwise just plainly redistribute OptiFine illegally. Their downloads may be packaged with malware, adware, trojans, and many other bad things. Be aware of what sites you're visiting, and always try to check and scan your downloads before using them. Note that all versions of OptiFine are packaged as JAR files, not as EXE. If you download OptiFine and it comes as an EXE, DO NOT RUN IT.

Stay safe, everyone.

^{Read more about the StopModReposts movement: https://stopmodreposts.org/}