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Comparison · Collab
Elgg vs Slack
A side-by-side editorial comparison of Elgg and Slack — release velocity, themes, recent moves, and the top alternatives to consider.
Elgg vs Slack: at a glance
What is Elgg?
Elgg ships paired 7.1.2 and 6.3.9 patches: both branches stay in maintenance mode.
Elgg is a mature open-source PHP framework for self-hosted community platforms. The 7.0 major shipped in May 2026, and 7.1.0 in September added invitation-only groups, header images for generic entities and a MariaDB recommendation. 7.1.1 fixed profile access display and trash recovery, and on October 21 Elgg shipped 7.1.2 and 6.3.9 together, both with no release notes beyond the contributor list.
What is Slack?
Slack's CLI now points coding agents to its MCP server and Skills plugin
Slack's developer channel is mostly agent plumbing. Slackbot skills can be created and managed through Web API methods and kept current from CI, Slack Code lets agents open ephemeral channels with people, and the Slack CLI now tells coding agents that run slack --help about the Slack MCP and Skills Plugin. Alongside sit a new Block Kit layout block and tighter review rules for low-usage Marketplace apps.
Elgg vs Slack: editorial side-by-side
Elgg
5.0COLLAB
Elgg ships paired 7.1.2 and 6.3.9 patches: both branches stay in maintenance mode.
◆ Current state
Elgg is a mature open-source PHP framework for self-hosted community platforms. The 7.0 major shipped in May 2026, and 7.1.0 in September added invitation-only groups, header images for generic entities and a MariaDB recommendation. 7.1.1 fixed profile access display and trash recovery, and on October 21 Elgg shipped 7.1.2 and 6.3.9 together, both with no release notes beyond the contributor list.
◆ Where it's heading
Elgg follows a predictable cadence: a feature minor, then single-digit patch releases, with paired backports on the 6.3 branch. The 7.1 features centred on finer access control and generic entity handling, and the follow-up patches stay in those areas. The project favours stability over pace.
◆ Prediction
More 7.1.x patches are likely, released in pairs with 6.3.x as happened again today. The entries give no signal about what a 7.2 would contain.
Slack
5.0COMMSCOLLAB
Slack's CLI now points coding agents to its MCP server and Skills plugin
◆ Current state
Slack's developer channel is mostly agent plumbing. Slackbot skills can be created and managed through Web API methods and kept current from CI, Slack Code lets agents open ephemeral channels with people, and the Slack CLI now tells coding agents that run slack --help about the Slack MCP and Skills Plugin. Alongside sit a new Block Kit layout block and tighter review rules for low-usage Marketplace apps.
◆ Where it's heading
Slack is treating AI agents as a primary audience for its developer surface: skills as code, agent workspaces in channels, and now CLI help text written for agents to read. The Marketplace change points the other way, toward less attention for apps nobody installs.
◆ Prediction
Expect more of the CLI and API surface to be documented for agents, likely more MCP-exposed Slack actions. The entries do not show when Slack Code or skills leave developer preview.
Elgg alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Elgg.
Double
Double's Ask Double now sets up allocations and remembers how a firm codes vendors.
Mattermost
Mattermost v12 adds device and channel attributes to its access policies.
Asana
Asana gives client portal activity its own Inbox tab, a week after launching Tables.
SiYuan
SiYuan's sixth 3.8.10 alpha repeats alpha.5's list as the release nears beta.
Teable
Teable previews the damage before a schema change and lets Routines run as their owners.
Slack alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Slack.
FluentBooking
FluentBooking 2.6.0 blocks spam bookings and redesigns its calendars and bookings lists.
Twilio
Twilio ships GA reconnect and mid-call config for Conversation Relay voice agents.
Fonoster
Fonoster Cloud starts charging for calls as the project moves to fonoster.ai.
Netcore Cloud
Netcore's blog keeps pitching search-plus-email on one data core, with no product release.
Superhuman
Superhuman gives team admins a console and Enterprise a usage report that counts MCP.
Synapse
Synapse opens the 1.165 cycle on schedule after two 1.164 patches
Recent activity from Elgg and Slack
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoSlackSlack CLI 4.13 tells coding agents about Slack MCP and Skills
- 3d agoSlackUpdated low-usage submission criteria for Slack Marketplace apps
- 6d agoSlackSlack CLI 4.12.0, the fourth CLI release in October
- 7d agoSlackNew Block Kit layout block
- 8d agoSlackSlackbot skills API methods are here!
- 14d agoSlackSlack CLI 4.11.0 ships with no change notes
- 15d agoElggElgg 7.1.2: small patch, paired with 6.3.9, no notes
- 15d agoElggElgg 6.3.9: paired backport patch for the 6.x line, no notes
- 27d agoElggElgg 7.1.1 fixes profile access display, trash recovery and theming
- 1mo agoElggElgg 7.1.0: invitation-only groups and MariaDB becomes the recommended database
- 2mo agoElggElgg 7.0.5
- 2mo agoElggElgg 6.3.8
Frequently asked questions
What is the difference between Elgg and Slack?
They serve adjacent needs but don't currently overlap on shipped themes. Elgg and Slack 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 Elgg better than Slack?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Elgg and Slack 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 Elgg?
Top Elgg alternatives in Collab are ranked by recent ship velocity. Browse the "Elgg alternatives" section above for the current picks, or visit /alternatives/elgg for the full list with editorial commentary on each.
What are the best alternatives to Slack?
Top Slack alternatives in Collab are ranked by recent ship velocity. Browse the "Slack alternatives" section above for the current picks, or visit /alternatives/slack for the full list with editorial commentary on each.