Halo Campaign Evolved Patch Notes & Update Archive

Official patch archive

July 29, 2026 - build 2026.07.25.1112544. Halo Support describes this as a multi-platform stability and enemy-AI update. Its listed download sizes are 13 GB on Xbox, 7 GB on PlayStation, 4 GB through the Microsoft Store or Xbox app on PC, and 21 GB on Steam.

July 28, 2026 - release-notes baseline. The official release article covers the launch build, installation, platform setup, gameplay systems, support routes, and high-impact known issues. It is a release reference rather than a second post-launch patch.

Halo Support says installing the July 29 update resets a mid-mission save. Unlocked missions and rally points remain available, so resume from one of those durable points after updating.

What the July 29 patch fixed or improved

The official list contains 10 resolved or improved items. These summaries preserve the scope of Halo Support's wording rather than expanding an improvement into a universal fix.

1. Improved The Maw introduction stability with FSR on AMD drivers 26.6.2 and 26.6.4.
2. Added PC warnings for AMD or NVIDIA driver versions with known issues.
3. Made Xbox Gamertags visible during PlayStation and Steam account linking.
4. Made general stability improvements to Pillar of Autumn.
5. Corrected Jackal patrol behavior in The Truth and Reconciliation.
6. Corrected enemy behavior near the first bridge in Assault on the Control Room.
7. Corrected enemy behavior near the final pyramid in Assault on the Control Room.
8. Made the Hunter pair engage consistently near the Silent Cartographer entrance.
9. Prevented one charged Plasma Pistol shot from killing a player at full health and shields.
10. Reduced hitching for players with large friends lists on Windows PC, Steam, and PlayStation.

What remains outside these patch notes

The July 29 article links separately to Halo Support's Known Issues page. A fix is not confirmed merely because it is absent from the resolved list, and a community workaround is not a patch note.

The current Known Issues page still documents high-impact cases such as the RTX 50-series Keyes crash on specific NVIDIA drivers. Use the site's known-issues guide to match the exact hardware, driver, mission, or launch symptom before changing settings.

Update without losing context

Use the platform's normal update flow and the official Halo Support instructions. Do not download a game patch, driver, DLL, or executable from an unofficial mirror.

1. Finish or note the current mission and rally point before installing an update.
2. Update through Xbox, PlayStation, Steam, or the Microsoft Store/Xbox app.
3. Restart the game and confirm the build behavior before changing drivers or settings.
4. On PC, use the official file-verification flow if the installation appears incomplete.
5. Check Known Issues or submit a Halo Support ticket when the symptom is not in the resolved list.

Archive update policy

A new entry is added only after Halo Support or Halo Waypoint publishes a dated patch or release note. Each entry keeps the official date, build number when supplied, source link, save-impact warning, and a concise independently written summary.

Reports about an upcoming update remain outside the shipped archive until official patch notes are published. The checked date shows when the sources were last reviewed; it is not a live service-status signal.

Frequently asked questions