A complete timeline and breakdown of every major version of modded Halo 1: NHE, Patch Edition, Pro Edition, and Alternate Universe.

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Halo: Combat Evolved’s competitive scene has been shaped by a decade of community-driven modding. Below is a full breakdown of its mod evolution—Neutral Host Edition (NHE), Patch Edition, Pro Edition, and the experimental Alternate Universe (AU)—along with key insights and missing versions.

NHE (Neutral Host Edition)

• NHE Beta — Jan 2015
• NHE Beta V5 — Apr 2016
• NHE Beta V6 — Dec 2016
• NHE Beta V7 — Feb 2017
• NHE V1.0 — Sep 2018
• NHE V1.1 — Late 2018 (included 180° glitch fix by CYRiX)

Patch Edition (Development Branch)

• Patch 1.2 — Jan 2021
• Patch 1.3 — Oct 2021
• Patch 1.5 — Mar 2022

Pro Edition (Competitive Standard)

• Pro 1.0 — Apr 2022
• Pro 2.0 — Aug 2023

Alternate Universe (AU)

AU is a creative offshoot developed by Patch and collaborators (hirsute, dds, stuntman, Jukkis) that experiments with radically altered map layouts, visuals, and gameplay flow. Not a replacement for Pro, but a parallel "fun-first" set of maps ideal for variety or casual LAN settings.

AU Maps in Development or Playtesting

• Chilled Out — Finalized version of Chill Out
• Slammer — Modified Prisoner (red attic, ladder, closed tunnel)
• Salvation — Dramatically changed Damnation
• Dread — Based on Derelict (same as Pro 2.0 for now)
• DR — Fully mirrored Downrush concept
• HH ("Lynch 'Em Low?") — New map in development
• Tinkered — Tinker with added geometry, PPs, and portal changes
• Outbound — Layout polish, destructible light bridge under rocket
• Temple, Longshot, Pat Race — Aesthetic changes only

Missing / Unlisted Versions

• Patch 1.5 — Confirmed, postdates Pro 1.0
• NHE 1.1 — Exists, not always recognized
• AU v1 — Expected Sep 2025

Summary Table

Did I miss anything? Let me know in the discord channel.