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Update Log — Last checked May 18, 2026

What's new in Maple Hospital — every May 2026 patch tracked

Marizma Games does not maintain a public in-game changelog. I watch the Roblox group wall, play-test each patch, and document every meaningful change here — new illnesses, role XP adjustments, code drops, and bug fixes. Updated within 24–48 hours of each patch.

TL;DR May 2026: v4.7.0 (May 9) is the headline patch — 4 new illnesses including Acute Appendicitis (28 XP, highest in-game), Nurse XP buffed from 14 to 16/case, two new codes dropped. See all illnesses with XP values →
All illnesses + XP database →Active codes (May 2026) →

Real Update Week Observations

What actually changed in my sessions — not just patch notes

Patch notes describe what Marizma intends. What matters is what changes in practice. Here is what I noticed in my play sessions across the May 2026 patch cycle:

May 2026 patch timeline

5 patches shipped in May. Sorted newest first.

NEW CONTENTv4.7.3May 28, 2026

Seizure update: new Tonic-Clonic Seizure case + Neurology bay rework

  • Added Tonic-Clonic Seizure (Severity 4, Doctor-treat with optional Nurse assist slot): airway check → lateral positioning → timed observation → benzodiazepine after 90s → EEG reading. XP: 26 solo Doctor, or 16 Doctor / 10 Nurse when assisted.
  • Reworked the Neurology bay — relocated from behind Radiology to a dedicated room directly opposite the Triage desk, with a new EEG station that resolves neurological cases.
  • Consolidated Mild Concussion and the new Seizure case into the single relocated Neurology bay.
  • May 29 micro-hotfix: widened the benzodiazepine administration window so the 90-second mark no longer triggers an over-medication flag due to a one-frame rounding error.

Community reaction

The seizure case is the headline: a Nurse assist slot on a Severity 4 emergency is new, and 26 XP per case is the second-highest single-case payout after Acute Appendicitis. Spawn rate is deliberately low, so it is a bonus rather than a farm. Full timeline, XP testing, and per-role analysis are in the dedicated seizure update report linked under Related guides below.

HOTFIXv4.7.2May 18, 2026

Vet Clinic collision fix + Pharmacist queue overflow patch

  • Fixed a collision bug in the Vet Clinic wing that allowed players to walk through the wall near the animal recovery bay.
  • Resolved a Pharmacist prescription queue that would overflow and stop generating new patients after 45 minutes on servers with 12+ active players.
  • Minor: Corrected a UI element overlapping the XP bar on mobile devices at 768px viewport width.
  • Feline Respiratory Infection treatment timer adjusted from 90s to 75s after community feedback that 90s was disproportionately long for a Severity 3 illness.

Community reaction

Vet mains were relieved by the collision fix — several had been reporting clipping through the animal recovery bay wall for about a week. The queue overflow fix is equally important: a few content creators had documented Pharmacist sessions where XP suddenly flatlined at the 45-minute mark. Both issues are now resolved in this hotfix.

NEW CONTENTv4.7.1May 14, 2026

New vet illnesses: Feline URI + Canine Hip Dysplasia. Role balance pass.

  • Added Feline Respiratory Infection (Severity 3, Vet-treat only): treatment involves nebuliser station → medication cabinet → recovery monitoring. XP: 18 per case.
  • Added Canine Hip Dysplasia (Severity 2, Vet-treat): treatment involves physical exam → X-ray station → physiotherapy bay. XP: 14 per case.
  • Vet Clinic now has a second examination table to reduce queue congestion on busy servers.
  • Nurse specialization: Pediatric Nurse path now correctly awards 20 XP per pediatric case (was bugged at 14 XP since v4.6.0).
  • Receptionist role balance: desk queue processing speed increased by ~15% to reduce lobby congestion.

Community reaction

The two new Vet illnesses are welcome. Canine Hip Dysplasia in particular adds a multi-step treatment sequence that makes the Vet Clinic feel closer to the main hospital floor in terms of activity variety. The Pediatric Nurse XP bug fix was long overdue — players had been reporting the discrepancy since v4.6.0 released in late April.

MAJOR UPDATEv4.7.0May 9, 2026

Major: 4 new illnesses, Nurse XP buff, new codes, Acute Appendicitis added

  • Added Acute Appendicitis (Severity 4, Doctor-treat): emergency presentation → CT scan bay → OR prep → surgical removal. XP: 28 per case — highest single-case XP in the game.
  • Added Compound Fracture (Severity 4, Doctor + Nurse joint treat): triage → X-ray → cast fitting → pain management. XP: 24 per case, split 14 Doctor / 10 Nurse.
  • Added Allergic Dermatitis (Severity 2, Nurse-treat): assessment → allergy panel → topical medication. XP: 13 per case.
  • Added Mild Concussion (Severity 2, Doctor-treat): neurological assessment → observation → discharge. XP: 12 per case.
  • Nurse base consultation XP increased from 14 to 16 per case (applies to all non-specialization Nurse interactions).
  • Doctor OR surgical procedure XP adjusted from 22 to 20 per case to rebalance Anesthesiologist dominance.
  • Dropped codes MAYHEALTH2026 (2× XP 10min) and NURSEWEEK26 (cosmetic hat) — see codes page for status.
  • New illnesses added to the illness spawn pool — Acute Appendicitis has a lower spawn rate to reflect emergency rarity.

Community reaction

The v4.7.0 drop is the most significant content update since the Vet Clinic expansion. Acute Appendicitis alone has generated a lot of discussion — 28 XP per case is well above everything else in the illness pool and the OR procedure requirement means only Doctor and Surgeon can treat it. Some players feel the spawn rate for Appendicitis is too low on quieter servers, but Marizma has not commented yet.

BALANCEv4.6.2May 5, 2026

Surgeon XP floor increase + OR queue improvements

  • Surgeon minimum XP per session increased by capping the 'no OR Nurse' penalty — Surgeon now earns at least 180 XP/hr even if no OR Nurse is active (previously could drop below 150 XP/hr on empty servers).
  • OR queue logic rewritten: multiple Doctors can now queue for OR concurrently without the queue stalling.
  • Anesthesiologist bay: added a second pre-op station to reduce bottlenecks before high-volume surgical cases.
  • Fixed an exploit where players could bypass the Level 25 Surgeon unlock via the OR back entrance.

Community reaction

The Surgeon floor increase is the change most players noticed immediately. Before this patch, logging in as Surgeon on a half-empty server was genuinely frustrating — I have personally had sessions where I sat at 160 XP/hr for 20 minutes waiting for an OR Nurse. The 180 XP/hr floor does not make Surgeon the best solo role, but it removes the punishing downside on quiet servers.

HOTFIXv4.6.1May 2, 2026

XP tracker display bug fix + nurse specialization tree correction

  • Fixed XP bar display showing incorrect level-up threshold for players between Level 28 and Level 32.
  • Nurse L&D specialization path now correctly shows the Maternity ward as an accessible area post-unlock.
  • Removed duplicate illness spawn for 'Common Cold' that was causing it to appear at ~3× its intended rate on busy servers.
  • Performance: reduced server memory overhead by approximately 8% on 20+ player servers.

Community reaction

The Common Cold duplicate spawn was a real issue — players in the main ward were being overwhelmed with low-severity cases that paid 8 XP each while high-severity cases barely appeared. The fix restored the intended illness distribution. The XP bar display bug was cosmetic only (actual XP was tracking correctly) but confusing for newer players.

New illnesses added in May 2026

Four new illness types were added across the May patch cycle. All are now in the complete illnesses database with full treatment steps, XP values, and which role treats each.

Acute Appendicitis

28 XP
Severity 4/5Doctor

Highest single-case XP in the game. OR required.

Compound Fracture

24 XP
Severity 4/5Doctor + Nurse

Joint treat — 14 XP Doctor / 10 XP Nurse.

Feline Respiratory Infection

18 XP
Severity 3/5Vet

Vet Clinic only. Multi-step nebuliser treatment.

Allergic Dermatitis

13 XP
Severity 2/5Nurse

Assessment → allergy panel → topical medication.

Also added in May 14 Vet update: Canine Hip Dysplasia (Vet-treat, Severity 2, 14 XP). See all 30+ illnesses in the database →

Role changes in May 2026

Nurse

XP buff: base consultation from 14 to 16 XP/case (+14%).

Nurse guide →Level up guide →

Doctor (OR)

OR surgical procedure XP reduced from 22 to 20 per case.

Doctor guide →

Surgeon

Minimum XP floor raised to 180 XP/hr even without OR Nurse support.

Vet

Two new illnesses added (Feline URI + Canine Hip Dysplasia). Second exam table added to Vet Clinic.

Vet Clinic guide →

Nurse — Pediatric

Bug fix: Pediatric Nurse path now correctly awards 20 XP per case (was stuck at 14 XP since v4.6.0).

XP and leveling changes — what they mean for you

The Nurse XP buff is the most player-relevant change in May. At 16 XP/case instead of 14, the gap between Nurse and Doctor closes slightly — which changes the math on when to switch roles. Use the XP tracker to log your current rate, and the level calculator to recalculate sessions to Level 10 based on post-patch Nurse rates.

Pre-patch (before May 9)

Nurse XP/case14
Doctor OR XP/case22
Nurse XP/hr (active)~180

Post-patch (after May 9)

Nurse XP/case16 (+14%)
Doctor OR XP/case20 (-9%)
Nurse XP/hr (active)~200 (+11%)

For players aiming to level up fast, the Nurse buff means the pre-patch advice of “switch to Doctor at Level 10” is now even less urgent — staying Nurse through Level 15 may give similar total XP to an early Doctor switch, depending on play style.

Codes dropped in May 2026

Two codes were released with the v4.7.0 patch. Check the active codes page for live expiry status — codes are removed without notice.

CodeRewardDrop dateStatus
MAYHEALTH20262× XP boost (10 min)May 9Active
NURSEWEEK26Nurse hat (cosmetic)May 9Active

Update log FAQ

When does Maple Hospital usually update?

Marizma Games patches most often on Thursdays or Fridays. Major updates arrive on weekends. Hotfixes can drop any day. I check within 24–48 hours of each patch.

Did the May 2026 update add new illnesses?

Yes — 5 new illnesses total across the May cycle: Acute Appendicitis, Compound Fracture, Allergic Dermatitis, Mild Concussion, Feline Respiratory Infection, and Canine Hip Dysplasia. Full details in the illnesses database.

Did the May 2026 update change XP rates?

Nurse base XP went from 14 to 16 per case (+14%). Doctor OR XP reduced from 22 to 20 per case. Pharmacist unchanged. Net result: Nurse is a stronger early-game choice post-patch.

Were new codes added in May 2026?

Two codes dropped with v4.7.0 on May 9: MAYHEALTH2026 (2× XP 10min) and NURSEWEEK26 (cosmetic hat). Both were active as of May 18.

What is the best role after the May 2026 update?

Doctor at 320 XP/hr remains the best overall role. Nurse is now stronger at ~200 XP/hr post-buff. Use the role finder for a personalised recommendation.

How do I find Maple Hospital official patch notes?

Marizma Games posts on the Roblox group wall and updates the game Description tab. There is no in-game changelog — this update log is the most comprehensive third-party tracker.

Related guides

More Maple Hospital resources

Seizure Update Report

Dated timeline of the v4.7.3 seizure update — new case, Neurology bay, XP testing.

Open →

All Illnesses Database

Every illness with XP value, treatment steps, role, and severity.

Open →

All Roles Ranked

Tier list — every role post-May 2026 balance patch.

Open →

XP Tracker

Log your XP per session and track progress toward next unlock.

Open →

Role Finder Quiz

5-question quiz to find your best role post-patch.

Open →

Doctor Guide

Unlock at Level 10, specializations, OR access.

Open →

Nurse Guide

Best early-game path. Now even stronger post-XP buff.

Open →

Vet Clinic Guide

Two new illnesses added in May. Updated guide.

Open →

Beginner Guide

Start here if you are new to Maple Hospital.

Open →

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