HexARAMARAM: Mayhem Ability Augment lookup
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Riot Games / League of Legends

Official Patch Notes

This page indexes and interprets official notes without replacing the source. The site keeps mechanics, asset, and stat records from ARAM: Mayhem’s pre-launch asset baseline onward, with the live launch patch marked separately.

Open line-item index

Record Start

This site keeps records from the pre-launch asset baseline 25.18 and marks 25.21 as the live launch patch.

Patches 25.18 through 25.20 preserve pre-launch asset baselines; 25.21 through 26.11 use the shared CommunityDragon Arena augment catalog; ARAM_ prefixed ARAM: Mayhem-specific entries appear from 26.12 onward.

Patch 25.21 is the ARAM: Mayhem live launch. 15.21

Audit Boundary

Latest Official Patch26.13
Next Unconfirmed Patch26.14
Verified At2026-07-09

Riot patch notes, dev posts, LeaguePBE feedback threads, and CommunityDragon static catalogs have been checked. As of 2026-07-09, the latest official ARAM: Mayhem patch that can be recorded is 26.13. Patch 26.14 only has PBE/datamine previews and is not included as a formal record.

Patch Timeline

  1. 25.18Pre-launch asset baseline15.18 / prelaunch-baseline
  2. 25.19Pre-launch asset baseline15.19 / prelaunch-baseline
  3. 25.20Pre-launch asset baseline15.20 / prelaunch-baseline
  4. 25.21Live launch15.21 / shared-cherry-catalog
  5. 25.22Initial live run15.22 / shared-cherry-catalog
  6. 25.23Initial live run15.23 / shared-cherry-catalog
  7. 25.24Initial live run15.24 / shared-cherry-catalog
  8. 26.1Extended run / fixes16.1 / shared-cherry-catalog
  9. 26.2Extended run / fixes16.2 / shared-cherry-catalog
  10. 26.3First major update16.3 / shared-cherry-catalog
  11. 26.4Post-update iteration16.4 / shared-cherry-catalog
  12. 26.5Post-update iteration16.5 / shared-cherry-catalog
  13. 26.6Post-update iteration16.6 / shared-cherry-catalog
  14. 26.7Post-update iteration16.7 / shared-cherry-catalog
  15. 26.8Post-update iteration16.8 / shared-cherry-catalog
  16. 26.9Post-update iteration16.9 / shared-cherry-catalog
  17. 26.10Post-update iteration16.10 / shared-cherry-catalog
  18. 26.11Post-update iteration16.11 / shared-cherry-catalog
  19. 26.1226.12 system revamp16.12 / aram-prefixed-catalog
  20. 26.13Post-revamp iteration16.13 / aram-prefixed-catalog

Data Coverage

Raw catalog rows come from the client source file; canonical rows are the site's deduplicated display catalog; offer-pool counts stay unknown until source evidence proves live availability.

PatchAssetCatalogRaw catalogCanonical rowsARAM_ signalOffer pool evidenceEventsLine itemsCoverage
26.1316.13aram-prefixed-catalog638412170Unknown14Line items extracted
26.1216.12aram-prefixed-catalog637411170Unknown420Line items extracted
26.1116.11shared-cherry-catalog5755610Unknown14Line items extracted
26.1016.10shared-cherry-catalog5685540Unknown15Line items extracted
26.916.9shared-cherry-catalog5675530Unknown14Line items extracted
26.816.8shared-cherry-catalog5285140Unknown15Line items extracted
26.716.7shared-cherry-catalog5285140Unknown15Line items extracted
26.616.6shared-cherry-catalog5325180Unknown16Line items extracted
26.516.5shared-cherry-catalog5315170Unknown26Line items extracted
26.416.4shared-cherry-catalog5315170Unknown15Line items extracted
26.316.3shared-cherry-catalog5315170Unknown311Line items extracted
26.216.2shared-cherry-catalog4894750Unknown14Line items extracted
26.116.1shared-cherry-catalog4894750Unknown14Line items extracted
25.2415.24shared-cherry-catalog4804490Unknown15Line items extracted
25.2315.23shared-cherry-catalog4684370Unknown16Line items extracted
25.2215.22shared-cherry-catalog4674360Unknown15Line items extracted
25.2115.21shared-cherry-catalog4674350Unknown418Line items extracted
25.2015.20prelaunch-baseline3132820Unknown12Line items extracted
25.1915.19prelaunch-baseline3132820Unknown12Line items extracted
25.1815.18prelaunch-baseline3132810Unknown12Line items extracted

Source Events

25.18Asset snapshot 15.18static-catalog-baselineSource Type: community-static-data

Pre-launch asset baseline: 15.18 Cherry augment catalog

  • The CommunityDragon 15.18 static catalog records a pre-public Mayhem Cherry augment baseline: 313 catalog rows and no ARAM_ prefix entries.
Source EvidenceOpen patch
25.19Asset snapshot 15.19static-catalog-baselineSource Type: community-static-data

Pre-launch asset baseline: 15.19 Cherry augment catalog

  • The CommunityDragon 15.19 static catalog continues the shared Arena baseline from 15.18: 313 catalog rows and no ARAM_ prefix entries.
Source EvidenceOpen patch
25.20Asset snapshot 15.20static-catalog-baselineSource Type: community-static-data

Pre-launch asset baseline: 15.20 Cherry augment catalog

  • The CommunityDragon 15.20 static catalog is the last tracked baseline before the 25.21 live launch: 313 catalog rows and no ARAM_ prefix entries.
Source EvidenceOpen patch
25.212025-10-06official-devSource Type: official

Official dev blog announces ARAM: Mayhem for Patch 25.21

  • Riot describes ARAM: Mayhem as a separate queue with augment choices at start and levels 7/11/15, and says the prototype came from bringing Arena augments into ARAM.
Source EvidenceOpen patch
25.212025-10-06official-devSource Type: official

TL;DW: first public ARAM: Mayhem overview

  • The official TL;DW previews ARAM: Mayhem before 25.21 as an Act 2 mode with Arena-style augments in 5v5 ARAM and a separate queue.
Source EvidenceOpen patch
25.212025-10-21official-patchSource Type: official

25.21: ARAM: Mayhem goes live

  • Official patch notes say ARAM: Mayhem goes live in 25.21 and is planned through 25.24.
Source EvidenceOpen patch
25.21PBE cycle before 25.21pbe-feedbackSource Type: pbe-feedback

PBE: first ARAM: Mayhem bugs and feedback thread

  • Riot QA described the first PBE test: a separate queue, augment choices at start and levels 7/11/15, returning Arena augments, and 40+ new augments.
Source EvidenceOpen patch
25.22Patch cycle 25.22official-patchSource Type: official

25.22: first post-launch ARAM: Mayhem changes

  • Official patch notes include ARAM Mayhem changes, making this the first public post-launch adjustment checkpoint.
Source EvidenceOpen patch
25.23Patch cycle 25.23official-patchSource Type: official

25.23: continued ARAM: Mayhem adjustments

  • Official patch notes include an ARAM Mayhem section covering silver augment cadence, Bloom Portal, Stat Anvils, minion pacing, augment mechanics, and champion modifiers.
Source EvidenceOpen patch
25.24Patch cycle 25.24official-patchSource Type: official

25.24: year-end ARAM: Mayhem changes and fixes

  • Official patch notes mention year-end ARAM Mayhem adjustments, changes, and bug fixes.
Source EvidenceOpen patch
26.1Patch cycle 26.1official-patchSource Type: official

26.1: new-season ARAM: Mayhem balance and quick fixes

  • Official patch notes mention ARAM Mayhem balance updates, and the mid-patch update includes Mayhem quick fixes.
Source EvidenceOpen patch
26.2Patch cycle 26.2official-patchSource Type: official

26.2: ARAM: Mayhem bug fixes

  • Official patch notes include ARAM & ARAM: Mayhem and ARAM: Mayhem Only bug-fix lists.
Source EvidenceOpen patch
26.32026-01-08official-devSource Type: official

TL;DW: Mayhem run extended and 26.03 major update previewed

  • The official TL;DW confirms ARAM: Mayhem’s run is being extended and previews a larger update in Patch 26.03.
Source EvidenceOpen patch
26.32026-01-21official-patchSource Type: official

26.3: first major ARAM: Mayhem update

  • Official patch notes mention 40+ new augments, augment sets, and a progression track, making this the first major post-launch checkpoint.
Source EvidenceOpen patch
26.3PBE cycle before 26.3pbe-feedbackSource Type: pbe-feedback

PBE: ARAM: Mayhem 26.03 update feedback thread

  • Riot QA described the 26.03 PBE update: more augments, augment sets, a progression track, bug fixes, and quality-of-life updates.
Source EvidenceOpen patch
26.4Patch cycle 26.4official-patchSource Type: official

26.4: ARAM: Mayhem and Arena updates

  • Official patch notes mention updates for ARAM Mayhem and Arena in this patch.
Source EvidenceOpen patch
26.52026-03-02official-devSource Type: official

TL;DW: Mayhem extended with no end date yet

  • The official TL;DW says ARAM: Mayhem’s run is being extended with no end date in mind yet.
Source EvidenceOpen patch
26.5Patch cycle 26.5official-patchSource Type: official

26.5: ARAM: Mayhem adjustments, buffs, and nerfs

  • Official patch notes mention ARAM: Mayhem adjustments, buffs, and nerfs.
Source EvidenceOpen patch
26.6Patch cycle 26.6official-patchSource Type: official

26.6: ARAM: Mayhem balance and many bug fixes

  • Official patch notes mention Arena and ARAM: Mayhem balance changes plus many bug fixes.
Source EvidenceOpen patch
26.7Patch cycle 26.7official-patchSource Type: official

26.7: ARAM: Mayhem April Fools content

  • Official patch notes include an ARAM: Mayhem section and mention April Fools Poro content.
Source EvidenceOpen patch
26.8Patch cycle 26.8official-patchSource Type: official

26.8: ARAM and ARAM: Mayhem updates

  • Official patch notes mention updates to ARAM, ARAM: Mayhem, and Arena.
Source EvidenceOpen patch
26.9Patch cycle 26.9official-patchSource Type: official

26.9: Combo Breaker aligned with ARAM: Mayhem

  • Official patch notes mention Combo Breaker being updated to match ARAM: Mayhem.
Source EvidenceOpen patch
26.10Patch cycle 26.10official-patchSource Type: official

26.10: ARAM: Mayhem bug fixes

  • Official patch notes include an ARAM: Mayhem Bugfixes section.
Source EvidenceOpen patch
26.11Patch cycle 26.11official-patchSource Type: official

26.11: small ARAM: Mayhem champion changes and fixes

  • Official patch notes mention a handful of champion changes and general bug fixes.
Source EvidenceOpen patch
26.122026-05-27official-devSource Type: official

Official dev blog previews the 26.12 Mayhem revamp

  • Riot says 26.12 removes Traits, adds Ability and Quest Augments, and refocuses augments on champion fantasy.
Source EvidenceOpen patch
26.122026-05-27official-devSource Type: official

TL;DW: 26.12 revamp and 2026/2027 future planning

  • The official TL;DW says Riot is working on 2026 Mayhem updates and beginning 2027 planning, while 26.12 removes Traits, preserves popular effects, and adds Ability Augments.
Source EvidenceOpen patch
26.122026-06-09official-patchSource Type: official

26.12: Ability and Quest Augments live; Traits removed

  • Official patch notes confirm Ability Augments, Quest Augments, and the removal of Augment Traits.
Source EvidenceOpen patch
26.12PBE cycle before 26.12pbe-feedbackSource Type: pbe-feedback

PBE: ARAM: Mayhem Set 2 bugs and feedback thread

  • The LeaguePBE Set 2 thread describes the 26.12 test focus: Ability Augments, Quest Augments, and many new augments.
Source EvidenceOpen patch
26.13Patch cycle 26.13official-patchSource Type: official

26.13: ARAM: Mayhem augments and recent fixes

  • Official patch notes include an ARAM: Mayhem section and continue the post-26.12 augment and fix record.
Source EvidenceOpen patch