Wube published the Factorio 2.1.23 changelog on October 20, 2026, listing fixes for crashes, a desync and equipment behavior. The announcement explains that new versions arrive first as experimental releases. We have not tested the fixes or checked delivery through a game client. Official changelog
Which problems the changelog addresses
One crash fix concerns RGBA-to-RG texture conversion when texture compression is disabled. Another concerns an agricultural tower with a void energy source and working visualization states. Those conditions matter: the notes do not establish a fix for every graphics crash or every issue involving agricultural towers. Changelog
The listed desync fix involves the initialization order of enemy spawners and attached units with different collision masks. Wube also lists fixes for mobile roboports failing to issue storage-space alerts and for inserters getting stuck while inserting fuel into certain filtered slots when using set-recipe. Players experiencing those particular problems have concrete entries to compare with their sessions. Changelog
Experimental status and the move to 2.1
In the October 20 recheck, the experimental page displayed 2.1.23 for demo and headless downloads, while the stable page showed 2.0.77. We have not verified delivery of the full version through an account, store or game client. Downloads · Experimental downloads
For players moving from 2.0, Wube’s June 26 introduction to 2.1 warned that changes could disrupt factory designs and that mods might not yet be adapted. It recommends backing up saves and blueprints before switching; once updated to 2.1, those files cannot return to 2.0. This is migration context from June, rather than a new October 20 announcement. Our earlier coverage of space-platform changes covers another part of the 2.1 branch. Friday Facts #444
The sources, on the record.
Sources checked Oct 20, 2026. Reporting and analysis are labelled separately. Our editorial standards.