Single Grain
Single Grain keeps publishing AI-for-marketing how-tos, not product changes
A side-by-side editorial comparison of Bludit and Umbraco CMS — release velocity, themes, recent moves, and the top alternatives to consider.
A flat-file CMS with a long CVE history just wired its API up for MCP.
Bludit ships every few weeks, and almost every release carries a security fix: an authentication bypass and arbitrary file upload in 3.18.4, an authenticated RCE via file upload plus .htaccess bypass in 3.20.0, a path traversal in the API files endpoint in 3.21.0, and session invalidation for disabled users in 3.22.0. Around that, the work is editor and dashboard maintenance, theme additions and a plugin hook for injecting editor toolbar buttons.
Umbraco 19 reaches its first release candidate on .NET 11 GA.
Umbraco 19.0.0-rc1 arrived on 12 November, two weeks after the first beta, and moves the release onto .NET 11 GA. The beta brought reusable Library content to every block editor and search into core; rc1 adds Entra ID SQL authentication, action groups in menus, an API switch that lets code block schema changes per environment, and a fix that admits one request per process into the content write path on load-balanced sites. The 18.3 and 17.8 candidates are still on rc2, which resolved seven security advisories.
Bludit ships every few weeks, and almost every release carries a security fix: an authentication bypass and arbitrary file upload in 3.18.4, an authenticated RCE via file upload plus .htaccess bypass in 3.20.0, a path traversal in the API files endpoint in 3.21.0, and session invalidation for disabled users in 3.22.0. Around that, the work is editor and dashboard maintenance, theme additions and a plugin hook for injecting editor toolbar buttons.
Two threads run in parallel. One is a sustained security cleanup, largely driven by external reports and handled release by release. The other is a quiet repositioning of the API: 3.22.0 improved it specifically to support MCP, which points a file-based CMS at agent-driven authoring. The plugin hook work in 3.20.0 fits the same pattern of opening the editor to programmatic control.
Expect the MCP-facing API work to continue — the initial support arrived as API improvements rather than a documented server, which is the piece still missing.
Umbraco 19.0.0-rc1 arrived on 12 November, two weeks after the first beta, and moves the release onto .NET 11 GA. The beta brought reusable Library content to every block editor and search into core; rc1 adds Entra ID SQL authentication, action groups in menus, an API switch that lets code block schema changes per environment, and a fix that admits one request per process into the content write path on load-balanced sites. The 18.3 and 17.8 candidates are still on rc2, which resolved seven security advisories.
The 19 cycle is moving quickly from beta to candidate, and rc1 is about hardening rather than new editor features: dependencies on GA, environment-level permissions and load-balancing performance. The 17 and 18 lines are kept in step on security fixes while 19 matures.
Expect 18.3 and 17.8 to go stable, followed by further 19 release candidates and a 19.0.0 stable release built on .NET 11.
Other Marketing 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 Bludit or Umbraco CMS.
Single Grain keeps publishing AI-for-marketing how-tos, not product changes
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See all Bludit alternatives → · See all Umbraco CMS alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
Both compete on the same themes — security-fixes — within Marketing. Umbraco CMS is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Umbraco CMS is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Marketing products to evaluate alongside.
Top Bludit alternatives in Marketing are ranked by recent ship velocity. Browse the "Bludit alternatives" section above for the current picks, or visit /alternatives/bludit for the full list with editorial commentary on each.
Top Umbraco CMS alternatives in Marketing are ranked by recent ship velocity. Browse the "Umbraco CMS alternatives" section above for the current picks, or visit /alternatives/umbraco for the full list with editorial commentary on each.