02 SEPTEMBER 2026 - Synapse & Chroma for Windows | Razer Insider
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02 SEPTEMBER 2026 - Synapse & Chroma for Windows

  • August 11, 2026
  • 13 replies
  • 2368 views
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Synapse for Windows - V4.0.86.2608280202 / Chroma for Windows - V4.0.63.2608260913

IMMERSIVE UPDATE - SEE. HEAR. FEEL

Chroma has always been about making your setup yours. This update makes it even more immersive. Three new features are rolling out, each one taking something happening on your machine and translating it into your Chroma devices in real time. No configuring scenes for every game. It just responds.

SEE - Screen Sync

Extends what's on your screen out into your setup. Colors and motion from the game get mapped to your Chroma devices as they happen, so a muzzle flash, a health warning, or a sunset over the map plays out across your room instead of stopping at the bezel.

HEAR - Mood Analyzer

Reads the emotional tone of what you're listening to and translates it into lighting. Not a volume meter that pulses on the bass, but something that picks up on whether a track is calm, tense, or euphoric and lights your setup to match.

FEEL - Impact Engine

Turns in-game audio into haptics. Explosions, gunfire, engine rumble, and impacts come through as physical feedback, so you feel hits instead of only hearing them.

 

NOTICE: END OF WINDOWS 10 SUPPORT FOR RAZER SYNAPSE 4

Following Microsoft's end of standard support for Windows 10 back on October 14, 2025, full support for Razer Synapse 4 on Windows 10 will end on October 14, 2026. As with Microsoft, this is a firm change: bug fixes and technical support for Synapse 4 on Windows 10 will not continue beyond this date.

From October 14, 2026 until October 12, 2027, any bug fixes released for Synapse 4 on Windows 10 will be limited to security updates only, mirroring Microsoft's own extended security updates for the platform. After October 12, 2027, Windows 10 support and compatibility will no longer be maintained for Synapse 4. Synapse 4 can still be used on Windows 10 and will still receive feature updates, but we cannot guarantee full functionality as we will no longer fix or address any bugs seen exclusively on Windows 10.

Moving forward, we recommend upgrading to Windows 11 to ensure the best possible experience. For more information on Microsoft's Windows 10 end of support and extended security updates, please visit Microsoft's official support page.

 

RELEASE NOTES

02 SEPTEMBER 2026

Fixed

  • Razer BlackShark V3 & V3 Pro - EQ settings not being applied

 

PREVIOUS RELEASE NOTES

31 AUGUST 2026

New

  • Razer BlackShark V3/V3 Pro Series - Added Competitive Mode, ULL Smart Switcher and 2nd Roller Disable
  • New THX Game Profiles
    • Dead as Disco
    • Deep Rock Galactic: Rogue Core
    • Dispatch
    • Echoes of Aincrad
    • Forza Horizon 6
    • Gothic 1 Remake
    • Hades II
    • Meccha Chameleon
    • Mina the Hollower
    • Mouse: P.I for Hire
    • Pragmata
    • REPLACED
    • Slay the Spire II
    • Subnautica 2
    • Warhammer 40,000: Darktide
    • Witchspire
  • Rename Razer Resonance to Impact Engine

Fixed

  • Razer Naga V3 Pro - Key assignment, scroll mode, and DPI adjustment issues
  • Razer Blade 18 (2026) - EQ settings not being applied
  • Mecha BREAK crashing with Synapse

25 AUGUST 2026

Fixed

  • Mice not working when paired with a wireless keyboard dongle and Snap Tap is enabled

18 AUGUST 2026

Fixed

  • Increased CPU utilization when using system monitoring

11 AUGUST 2026

New

  • New Chroma App Features
    • Screen Sync
    • Mood Analyzer
    • Razer Resonance

    13 Replies

    AlphaTay
    • AlphaTay
    • Insider
    • August 12, 2026

    Hi, pretty sad for Long Live WIndows 10 Extended Security Updates

    Receipt: zSilver Redemption : 2017 : Razer BlackWidow X Tournament Edition Chroma ; 2018 : Razer Lancehead Tournament Edition ; Receipt: Razer Silver Redemption : 2019 : Razer DeathAdder Essential ; Steam Wallet Code ; Rise of the Tomb Raider: 20 Year Celebration (Steam Key) ; 2020 : Razer BlackWidow Lite (All Layouts, Black Color) ; 2021 : Razer Huntsman Tournament Edition ; Razer Basilisk V2 ; 2022 : Razer Viper 8KHz ; 2023 : Razer Viper 8KHz ; Razer Cobra ; 2024 : Razer DeathAdder V3 ; 2025 : Razer DeathAdder Essential ; 2026 : Razer DeathAdder Essential ; All Earned Through Free To Do Razer Cortex PC & Android Silver Mission Daily, thx Razer.
      • Ambientlights
      • Insider Mini
      • August 12, 2026

      Did not know exactly which update brick the support from simhub.
      but simhub did not control any lights since at least the august update. It could be broken before because i used a Chroma RGB version from Feb or March i think.
      Please investigate the bug.

      Rolacka
      • Rolacka
      • Insider Mini
      • August 12, 2026

      This update appears to have broken the charge level indicator for my Deathadder v4 its always saying 100% despite it needing charging even when plugged in via usb it still says 100% battery level even though its clearly  charging at the moment..

      • Shadorin
      • Insider Mini
      • August 13, 2026

      Just thought I would note somewhere that after this update my Razer Naga V2 Pro is no longer reliably connecting to my PC over a wired connection. When I plug it in it either flickers with purple on the razer symbol (not the side buttons) and just constantly beeping like something has just been connected or just won’t connect at all. I got it to reconnect once briefly by using a different USB port but that only lasted a few minutes at best and I couldn’t get it to do it again. At least once Windows noted that it didn’t recognize the device and or something of that matter as well but I couldn’t force it to give me the same alert so I could type it out exactly. Luckily it appears that the wireless 2.4ghz dongle is working just fine and it is still charging fine from the pc without any issues it appears. Hope this gets fixed soon, I prefer using my device wired because I use the dongle for other devices that aren’t my gaming PC that I switch between.

      • Agentxavier34
      • Insider Mini
      • August 16, 2026

      I cannot tell what the mood analyzer does, whenever I enable it, it seems to just do the regular spectrum cycling and nothing more, I’m not sure if there is something wrong with it or if I need to update something further, but any info would be much appreciated.

      psolem
      • psolem
      • Insider Mini
      • August 16, 2026

      DId this update change anything in the Razer Chroma API?
      I may not be wording it correctly, but my issue is several of the devices I was lighting in my development project have suddenly stopped working.
      I am using Razer Chroma SDK for Unity installed from https://github.com/WyvrnOfficial/Unity_ChromaSDK.git and all WAS working well until this update.. Now I am only getting lights on mousepad, mouse and mouse dock. Keyboard, Seiren, Tartarus, Aether strip have all stopped responding to requests to light up.
      I think the problem might be in ChromaAnimationAPI, specifically ChromaAnimationAPI.SetEffectCustom2D(int device, int[ ] colors) is no longer working.
      Can anyone confirm if this update changed this API?
      Is anyone else suddenly having issues using this API or lighting some devices?

      Lrbrownii
      • Lrbrownii
      • Insider
      • August 17, 2026

      After begging to have Razer Chroma light strip set and Chroma Addressable RGB controller working properly in my PC for over a year. Quitting Synapse was the best thing I ever did.

      My PC actually works. We added Pro Click v2 vertical and Razer handheld dock and I made the plugin for Razer Kitsune. 

       

      I sure enjoyed my time with Synapse 3 but it seems it is time to move on. The last couple months sure have been nice not to deal with the constant issues I have had with Synapse 4 for the last two years.

       

      Sure wish I could use my Razer system with Razer software but I guess that will never happen...

      Lrbrownii
      • Lrbrownii
      • Insider
      • August 17, 2026

      Why does my PC not work with Synapse software? 

      The last couple of months has been great not using this software.

      omegabetaalpha0

      It was good to see the more frequent updates as well as changelogs that address the myriad of bugs Synapse has.

      But now these updates are quickly turning into an add-more-bloat cycle rather than fixing what's broken.

      Lemonalleybest668

      chroma will not finish the update, tried deleting and reinstall multiple times, no go

      ItzAzphrinx
      • ItzAzphrinx
      • Insider Mini
      • August 20, 2026

      I cannot tell what the mood analyzer does, whenever I enable it, it seems to just do the regular spectrum cycling and nothing more, I’m not sure if there is something wrong with it or if I need to update something further, but any info would be much appreciated.

      It shows the waves and colors depends how loud the audio is (It’s not similar to visualizer). It will auto detect depends what application you’re running, and it just works for me all the time.

      Can we get a full breakdown on what these new immersive options are meant to do? I can’t find info anywhere. For example, what devices does Razer Resonance apply to? I see a headset pictured, but doesn’t it and the Razer Freyja both already have haptics? Does this improve upon the existing audio to haptic option for the Freyja? Currently, enabling it disables the haptics on the Freyja completely.

      • Huggin80
      • Insider Mini
      • August 30, 2026

      Tottally lost the connection to Chroma Apps. Does not respond to the launch of games, apps, etc. Also stopped to work with Asus Chroma Control. All switches and allowances are set as usual.

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