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Comparison · Collab

KACE vs Radarr

A side-by-side editorial comparison of KACE and Radarr — release velocity, themes, recent moves, and the top alternatives to consider.

KACE vs Radarr: at a glance

FeatureKACERadarr
SectorCollabCollab
Velocity score5.05.0
Sparks · 30d00
Top themesendpoint-management, security-patches, php2shell, windows-11media-management, metadata, download-clients, shared-codebase
Last editorial update1d ago1mo ago
Website—Visit →

What is KACE?

KACE extends its PHP2SHELL fix to the SDA deployment appliance, six days after disclosure.

KACE has now patched the critical PHP2SHELL vulnerabilities across both appliances: SMA 15.1 and 15.0 on October 23, and the SDA 9.3 deployment appliance on October 27. SMA also gained official support for Windows 11 26H2 agents and patches, following KACE Cloud's 26H2 support a few days earlier.

Read the full KACE trajectory →

What is Radarr?

Radarr's maintenance run finally carries a few things users will see

6.4.3.10645 is a fuller release than the recent run: Trusted Networks and hostname validation arrive from the shared *arr base, external IDs are included for movies with links and shown only for the main link group, movies can be searched by original title from the page header, and days of the week use translations. The fix list covers Freebox single-file imports, re-importing an already-imported torrent, invalid languages stored in the database or hit during manual import, and connecting to Jellyfin 12 and later.

Read the full Radarr trajectory →

KACE vs Radarr: editorial side-by-side

K
KACE
COLLAB
5.0

KACE extends its PHP2SHELL fix to the SDA deployment appliance, six days after disclosure.

◆ Current state

KACE has now patched the critical PHP2SHELL vulnerabilities across both appliances: SMA 15.1 and 15.0 on October 23, and the SDA 9.3 deployment appliance on October 27. SMA also gained official support for Windows 11 26H2 agents and patches, following KACE Cloud's 26H2 support a few days earlier.

◆ Where it's heading

The changelog is dominated by security response and OS-version coverage, with both SMA branches patched in lockstep. Feature work is limited to agent reliability fixes. KACE behaves like a maintained endpoint-management line rather than one being redirected.

◆ Prediction

Expect November Patch Tuesday content and further cumulative patches on both SMA branches. The entries don't point to new feature work.

R
Radarr
COLLAB
5.0

Radarr's maintenance run finally carries a few things users will see

◆ Current state

6.4.3.10645 is a fuller release than the recent run: Trusted Networks and hostname validation arrive from the shared *arr base, external IDs are included for movies with links and shown only for the main link group, movies can be searched by original title from the page header, and days of the week use translations. The fix list covers Freebox single-file imports, re-importing an already-imported torrent, invalid languages stored in the database or hit during manual import, and connecting to Jellyfin 12 and later.

◆ Where it's heading

Reliability with third-party services remains the axis the work actually moves on — Freebox, Jellyfin, torrent re-import and language handling are all cases of another system behaving in a way Radarr had not accounted for. The framework-level additions in this release are inherited rather than chosen: Trusted Networks, hostname validation and health-check reasons appear identically in Prowlarr on the same day. The genuinely Radarr-specific additions are small search and metadata conveniences, which is the first time in two months the visible surface has moved at all.

◆ Prediction

Expect the external ID and original-title work to continue as metadata breadth rather than becoming a feature cycle, since that is the only axis on which this application has grown recently. The notes give no sign of a larger change.

Alternatives to KACE and Radarr

Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either KACE or Radarr.

See all KACE alternatives → · See all Radarr alternatives →

Recent activity from KACE and Radarr

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 2d agoKACESDA 9.3 hotfix closes PHP2SHELL flaws
  2. 3d agoKACEKACE SMA Windows 11 26H2 general support
  3. 6d agoKACEKACE SMA 15.0 Cumulative Patch 5
  4. 6d agoKACEKACE SMA 15.1 Cumulative Patch 2
  5. 6d agoKACEKACE Cloud supports Windows 11 26H2 feature updates
  6. 14d agoKACEOctober 2026 Microsoft Patch Tuesday
  7. 1mo agoRadarrExternal IDs, original-title search, and Trusted Networks
  8. 2mo agoRadarrRadarr 6.4.2: Trakt OAuth URL fixed
  9. 2mo agoRadarrRadarr 6.4.1: RQBit download client support
  10. 3mo agoRadarrRadarr 6.4.0 build 10540: HTTP and JSON handling cleanup
  11. 3mo agoRadarrRadarr 6.4.0 develop bump and cookie handling fix
  12. 3mo agoRadarrRadarr 6.3.0 master build: translations and CI fix

Frequently asked questions

What is the difference between KACE and Radarr?

They serve adjacent needs but don't currently overlap on shipped themes. KACE and Radarr are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is KACE better than Radarr?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. KACE and Radarr are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.

What are the best alternatives to KACE?

Top KACE alternatives in Collab are ranked by recent ship velocity. Browse the "KACE alternatives" section above for the current picks, or visit /alternatives/kace for the full list with editorial commentary on each.

What are the best alternatives to Radarr?

Top Radarr alternatives in Collab are ranked by recent ship velocity. Browse the "Radarr alternatives" section above for the current picks, or visit /alternatives/radarr for the full list with editorial commentary on each.