Deadlock Patch Notes: Official Changelog and Current Update

Where Valve publishes Deadlock patch notes, what City Never Sleeps changed, and which recent hero hotfixes affect the guides on this site.

By Game Guide PortSource reviewed:

Applies to: Valve's official Deadlock announcements and changelog through October 17, 2026

Quick answer

Use Valve's Deadlock Changelog forum or the Steam All News page for the current patch notes. The present major update is City Never Sleeps, published September 29, 2026. Its follow-up posts added Rat King, Baba, Solomon, Deadman Danny and Violet; Nurse Harrow is scheduled for October 20. October 5 and October 14 hotfixes materially changed Rat King and Baba.

Official Deadlock City Never Sleeps screenshot showing the updated shop and Popular Items interface
Official Deadlock artwork · © Valve · Source ↗
Use the source that matches your question
Official sourceBest useLimitation
Deadlock Changelog forumFull dated change threads and appended hotfixesA hotfix may be added to an older thread, so read its edit history and replies.
Steam All NewsMajor updates, new heroes and public announcementsSmall balance follow-ups may be easier to find in the forum.
City Never SleepsThe current major update overview and map presentationIt is an overview, not the complete numeric changelog.

Current major update

City Never Sleeps, published September 29, 2026, is the current major baseline for this guide set. Valve presents a redesigned Cursed Apple with three main lanes and four districts, a new Broker progression system, six announced heroes, interface and quality-of-life work, and accessibility additions.

The landing page explains the headline systems. The dated forum thread is the better source when an exact balance change matters.

Recent update timeline

Material official updates through October 17, 2026
DateUpdateGuide impact
Sep 29City Never Sleeps launchesSets the current map, districts and major-system baseline.
Oct 2Rat King becomes playableAdds him to the roster and establishes his released kit.
Oct 5Rat King follow-up balance changesChanges Scrap Grenade, Rat Swarm and Rule, Ratannia!; older launch numbers are stale.
Oct 6Baba becomes playableAdds her released kit and revises the first Ranked season end date.
Oct 9Solomon becomes playableAdds the four chess-piece abilities documented here.
Oct 13Deadman Danny becomes playableAdds him to the current roster and establishes his released kit.
Oct 14Baba follow-up balance changesReduces several defenses and mobility effects while increasing cooldowns.
Oct 16Violet becomes playableRaises the current roster to 43; Valve schedules Nurse Harrow for October 20.

Which guides need rechecking

Update trigger by page
PageRecheck when Valve changes…
Release and accessStore availability, invite language, platform listings or requirements.
How to playLane count, district layout, objectives, Souls or the Patron flow.
CharactersA hero release, rename, removal or new official hero forum.
RanksUnlock thresholds, rank names, calibration, RP or party rules.
Hero referencesAbility behaviour, official wording or a material balance patch.

How to read dated notes

  1. Start with the newest official post that mentions the system or hero.
  2. Check whether Valve appended a later hotfix to the same dated thread.
  3. Apply changes in date order; a launch announcement does not override a later balance note.
  4. Use the current client for behaviour that Valve has not documented publicly.
A patch date is not a permanent value. This index links to official sources and summarises material effects; it does not mirror every numeric line.

Sources and review scope

Checked October 17, 2026. This page is an index and impact summary; the linked Valve changelog is authoritative for exact values.

How this guide was checked

The source set was checked on October 16, 2026 against Valve's Steam listing, official Deadlock forum, City Never Sleeps page, changelog and Steam announcements; the live roster and news timeline were rechecked on October 17 after Violet became playable. Clearly labelled third-party sources are used only where Valve does not publish a complete beginner rules page or exhaustive interaction reference. Deadlock is still in development, so roster, rules, mechanics and access conditions must be rechecked after major updates.

Not independently play-tested. This is not a claim that every platform or game version was tested. Source review: Oct 17, 2026.