Historie verzí Synology: Surveillance Station, MailPlus a VMM
Aktualizováno dne 20. září 2026
10 minut čtení
This page is the version history for the three Synology packages that carry a paid license: Surveillance Station, MailPlus Server and Virtual Machine Manager. For each one it records what a release added and, more usefully, what it removed or now requires. Synology publishes the official notes one package and one build at a time; this version history is the consolidated view, kept current as new builds ship. The current Surveillance Station build is 9.3.0-12139, published on 20 August 2026.
Bod SynoPower Club: The useful half of a release note is the removals, and they are the half nobody reads. Every entry below under “what it took away” has caused a support question for us at some point — a camera that stopped streaming, a notification that stopped arriving, an NAS that stopped receiving updates. If something worked last year and does not now, start here rather than with your hardware.
Current versions at a glance #
| Branch | Latest build | Released | Status |
|---|---|---|---|
| 9.3 | 9.3.0-12139 | 2026-08-20 | Current |
| 9.2 | 9.2.5-11979 | 2026-02-05 | Superseded |
| 9.1 | 9.1.4-11002 | 2024-01-11 | Superseded |
| 9.0 | 9.0.2-10061 | 2022-11-10 | Superseded |
| 8.2 | 8.2.11-7328 | 2022-03-29 | Legacy (DSM 6 era) |
Every Surveillance Station version on this branch requires DSM 7.0-41890 or later. Thirty-one builds have shipped for DSM 7 in total; the list below covers the ones that changed behaviour, since the rest of the version history is patch releases that replaced the build immediately before them.
How to check which Surveillance Station version you are running #
Open Surveillance Station on your NAS #
Sign in to DSM and launch Surveillance Station. The package must already be installed; it is a free download from Package Center if it is not.
Open the Main Menu and choose About #
The About window reports the exact build, in the format 9.3.0-12139. The first three numbers are the branch and the number after the hyphen is the build, and it is what the version history below refers to.
Compare that build against the table above #
If your build is older than the current one, check the version history below for anything removed between your version and the latest. Removals matter more than additions when deciding whether to update.
Check Package Center for the update #
Updates appear in Package Center rather than inside Surveillance Station itself. Synology sometimes rolls a release out in stages, so a version can be published before it is offered to your NAS.
Surveillance Station 9.3 (2026) #
What it added: Event Center, cloud backup through Surveillance365, Attribute Search and Semantic Video Search on DVA models, support for the DVA7400, vacancy detection and Dynamic Privacy Masking on Synology cameras, automatic camera discovery, and a CMS ceiling of 5,000 recording servers and 50,000 cameras on an HD6500 host.
What it took away:
- Multicast streaming. Cameras that used it now stream over unicast.
- The Search and Widget features on the redesigned desktop.
- The separate CMS entry in Application Center, because CMS is now built in.
- C2 Backup for Surveillance for new users. Existing subscribers continue until their subscription expires.
- Full application support on VS360HD and VS960HD, which now stream only in Live View and Timeline.
Recording rotation is also enabled by default on new installations, with a floor of 10% of total storage. Our full write-up of Surveillance Station 9.3 covers each of these in detail.
Surveillance Station 9.2 (2024 to 2026) #
The longest-lived branch in the version history, with eleven builds. Four of these Surveillance Station versions changed behaviour in ways worth knowing.
- 9.2.5-11979 (Feb 2026): added Sites in CMS for grouping recording servers.
- 9.2.4-11863 (Sep 2025): the last supported version for the NVR216 and NVR1218. Rotation rules based on record count became enforced, and records over the limit are deleted on update.
- 9.2.3-11755 (Mar 2025): record-count limits enforced across Log, I/O Module and Action Rule apps; bookmarks capped at 1,000,000 and event results at 10,000,000. Notification email through the Yahoo! mail server stopped being supported.
- 9.2.2-11575 (Nov 2024): users can now only see snapshots of cameras they have playback privilege for.
- 9.2.1-11380 (Sep 2024): H.265 decoding moved from the server to end devices, the Live View Analytics app was discontinued, C2 Surveillance was renamed C2 Backup for Surveillance, and Slack or Microsoft Teams notifications began requiring 9.2.1 or later.
Surveillance Station 9.1 (2023 to 2024) #
- 9.1.3-10869 (Oct 2023): removed the hard limit on the number of IP cameras. The figure in your product specification became a performance recommendation rather than a ceiling.
- 9.1.1-10728 (May 2023): removed the “All objects” option from DVA Intrusion Detection.
If a page anywhere still tells you a specific NAS is capped at a fixed number of cameras, it predates 9.1.3. What actually limits you now is total bitrate and how many device licenses you hold.
Surveillance Station 9.0 (2022) #
- 9.0.2-10061 (Nov 2022): dropped support for the AXIS Barcode Reader as a transaction source, after AXIS moved it to a separately licensed package.
Models that have dropped out of the version history #
A version history is also where end-of-support announcements hide, and they are easy to miss. The one that matters most on this branch:
- NVR216 and NVR1218: Surveillance Station 9.2.4 is the last supported version. These units keep working, but they receive no further features or fixes.
If you are running either model, that is worth planning around. The free device licenses that came with the hardware are not transferable to a replacement unit, so a migration means buying licenses for the new machine — see what that costs before you budget.
Everything removed across the Surveillance Station version history #
The whole version history collected into one table, because this is the list people actually need when something stops working:
| Removed or changed | Version | Effect |
|---|---|---|
| Multicast streaming | 9.3.0 | Cameras fall back to unicast |
| Desktop Search and Widgets | 9.3.0 | Replaced by a redesigned desktop |
| C2 Backup for Surveillance (new users) | 9.3.0 | Use Surveillance365 instead |
| Full app support on VS360HD / VS960HD | 9.3.0 | Live View and Timeline only |
| Updates for NVR216 / NVR1218 | 9.2.4 | 9.2.4 is the final version |
| Yahoo! as a notification mail server | 9.2.3 | Choose another mail provider |
| Server-side H.265 processing | 9.2.1 | Moved to end devices |
| Live View Analytics app | 9.2.1 | Discontinued |
| Post-event snapshots in email notifications | 9.2.1 | No longer supported |
| IP camera count limit | 9.1.3 | Limit lifted; bitrate is the real constraint |
| AXIS Barcode Reader as transaction source | 9.0.2 | AXIS moved it to a paid package |
MailPlus Server version history and DSM requirements #
MailPlus Server is the package where the version question that actually matters is not “what is new” but “will it install”. Each branch requires a different minimum DSM version, and a supported NAS on an older DSM simply will not be offered the package.
| MailPlus branch | Latest build | Released | Requires |
|---|---|---|---|
| 4.1 | 4.1.0-31778 | 2026-08-11 | DSM 7.3 or above |
| 4.0 | 4.0.2-31664 | 2026-07-07 | DSM 7.3 or above |
| 3.3 | 3.3.0-21523 | 2024-08-27 | DSM 7.2 or above |
| 3.1 | 3.1.7-11334 | 2026-08-04 | DSM 7.1 or above |
| 3.0 | 3.0.0-11242 | 2022-11-22 | DSM 7.1 or above |
The 3.1 branch is still receiving security updates, which is why a 2026 build sits below a 2024 one in the table. If you cannot move to DSM 7.3 yet, 3.1.7 is the current option rather than an abandoned one.
Recent MailPlus releases have been maintenance rather than features: updated open-source components for search, mail filtering and the database libraries, an updated email authentication mechanism, and security fixes. One fix worth noting from 3.1.7 is that MailPlus Server could fail to start after a reboot if the system clock was temporarily wrong. For what the package does and what it costs, see our MailPlus guide.
Virtual Machine Manager and Virtual DSM version history #
Virtual DSM has no version history of its own. It ships as part of Virtual Machine Manager, so VDSM changes appear in the VMM notes, and that is where to look when a Virtual DSM behaviour changes.
| VMM version | Released | What changed |
|---|---|---|
| 2.8.0-13004 | 2026-06-16 | Clearer warnings when activating a license could overwrite a remaining period |
| 2.7.0-12229 | 2024-07-17 | Q35 machine type, VirtIO Block for Linux guests, better vDSM license mapping diagnostics |
| 2.6.5-12202 | 2023-09-26 | Fixed a high-spec Virtual DSM exhausting host memory |
| 2.6.0-12122 | 2022-04-06 | Five feature additions; the last substantial feature release before 2.7.0 |
VMM moves slowly — two years passed between 2.7.0 and 2.8.0. The item in 2.8.0 is the one to know if you buy licenses: activating a VMM Pro key on a host that still has time remaining can overwrite that period rather than extend it. 2.8.0 warns about it more clearly, but checking the current expiry before entering a key is the habit that prevents the problem. The 2.7.0 release also added detailed reasons for vDSM license mapping failures, which is the screen you land on when a Virtual DSM license will not attach to a host.
Does updating affect your licenses? #
For Surveillance Station and MailPlus, no. Those licenses are perpetual, they are unaffected by package updates, and no version has ever introduced a renewal fee. A Synology NAS includes two camera licenses by default, an NVR-series unit four and a Deep Learning NVR eight, plus five MailPlus mailboxes.
VMM Pro is the exception, because it is sold by period rather than perpetually. Updating the package does not affect it, but activating a key can: if the host still has time remaining, a new key may overwrite that period instead of extending it.
One caveat worth knowing: before 9.3, incorrect license counting could leave an “insufficient licenses” warning on screen after updating a recording server, even though nothing was actually wrong. That is fixed in 9.3.0-12139. If you need the underlying detail, see how to add and activate a license.
Frequently asked questions about Synology version history #
What is the latest Surveillance Station version? #
Surveillance Station 9.3.0-12139, published on 20 August 2026. It requires DSM 7.0-41890 or later.
How do I check which Surveillance Station version I have? #
Open Surveillance Station, then Main Menu, then About. The window reports the full build number in the form 9.3.0-12139. The number after the hyphen is the build and is what release notes refer to.
Why can I not see the newest version in Package Center? #
Synology sometimes rolls a release out in stages, so a version can be published days or weeks before it is offered to your NAS. Check that your DSM version meets the requirement as well, since Surveillance Station 9.3 needs DSM 7.0-41890 or later.
Which Synology models no longer receive Surveillance Station updates? #
The NVR216 and NVR1218 stopped at Surveillance Station 9.2.4. They continue to run but receive no further features or fixes.
Does updating Surveillance Station cost anything? #
No. Updates are free for the life of the product, and device licenses are perpetual and unaffected by updates. There has never been an upgrade fee for the package.
My cameras stopped working after an update. Where do I start? #
Check the removals list on this page for anything between your previous version and your current one. Multicast streaming removal in 9.3 and the H.265 processing change in 9.2.1 are the two most likely causes of a camera that worked before an update and does not after.
Can I roll back to an older Surveillance Station version? #
Downgrading a package is not something Synology supports, and the database format can change between versions. The practical protection is a configuration backup and a snapshot taken before you update rather than after.
Which DSM version does MailPlus Server need? #
It depends on the branch. MailPlus Server 4.1 and 4.0 require DSM 7.3 or above, 3.3 requires DSM 7.2, and the 3.1 branch runs on DSM 7.1. The 3.1 branch still receives security updates, so it is the option if you cannot move to DSM 7.3 yet.
Where are the Virtual DSM release notes? #
There are none. Virtual DSM ships as part of Virtual Machine Manager, so any change to VDSM behaviour is recorded in the VMM release notes instead.
Is it safe to skip Surveillance Station versions when updating? #
Yes, updating straight to the current build is normal. What is not safe is skipping the release notes, because behaviour changes accumulate across the versions you jumped over and none of them are announced again during the update.
Reference #
- Surveillance Station release notes, the official source for every version on this page.
- Přehled produktu Surveillance Station.
- Nápověda Surveillance Station: Licence.
Related reading: the Surveillance Station overview, which cameras work with it, and the desktop client.