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Comparison · Infra & APIs
Redocly vs runc
A side-by-side editorial comparison of Redocly and runc — release velocity, themes, recent moves, and the top alternatives to consider.
Redocly vs runc: at a glance
What is Redocly?
Redocly forks Markdoc and points Open in Claude at the desktop app.
Redocly's November 4 package release moved its docs stack to @redocly/markdoc, its own fork of Markdoc, with existing custom tags still working. The same release renders GitHub alert syntax as admonitions, sends Open in Claude to a Claude Code session in the desktop app, adds enum menus to the Try it console, and fixes mock servers that leaked earlier responses. The day before, config 0.71.0 made the docs agent opt-out.
What is runc?
runc 1.6.0-rc.1 lifts the 1024-CPU limit and refuses settings it used to quietly ignore
The 1.6.0 cycle opened on October 6 with a first release candidate that is mostly cleanup: deprecated libcontainer APIs removed, Go 1.26 now required, urfave/cli moved from v1 to v3, and the binary about 15% smaller on amd64. The changes with operational weight are that cpuAffinity and NUMA memoryPolicy no longer stop at 1024 CPUs or nodes, and that a container asking for a read-only rootfs without its own mount namespace is now refused. Eleven days earlier 1.5.2 worked around a kernel bug, present since v6.17, that corrupted memory inside runc and caused random crashes on cgroup v2. It also stopped runc exec --cgroup from escaping into a sibling cgroup.
Redocly vs runc: editorial side-by-side
Redocly
6.3INFRA · APIS
Redocly forks Markdoc and points Open in Claude at the desktop app.
◆ Current state
Redocly's November 4 package release moved its docs stack to @redocly/markdoc, its own fork of Markdoc, with existing custom tags still working. The same release renders GitHub alert syntax as admonitions, sends Open in Claude to a Claude Code session in the desktop app, adds enum menus to the Try it console, and fixes mock servers that leaked earlier responses. The day before, config 0.71.0 made the docs agent opt-out.
◆ Where it's heading
Redocly is taking more of its stack in-house and renaming it around one platform: Reunite options become platform, mcp.docs folds into mcp, and Markdoc is now a fork. The AI hooks point at the desktop agents rather than web chats, which fits the opt-out docs agent shipped a day earlier.
◆ Prediction
Expect the deprecated reunite and mcp.docs names to become errors in a later config release, and more Markdoc tags only Redocly's fork supports.
runc
2.5INFRA · APIS
runc 1.6.0-rc.1 lifts the 1024-CPU limit and refuses settings it used to quietly ignore
◆ Current state
The 1.6.0 cycle opened on October 6 with a first release candidate that is mostly cleanup: deprecated libcontainer APIs removed, Go 1.26 now required, urfave/cli moved from v1 to v3, and the binary about 15% smaller on amd64. The changes with operational weight are that cpuAffinity and NUMA memoryPolicy no longer stop at 1024 CPUs or nodes, and that a container asking for a read-only rootfs without its own mount namespace is now refused. Eleven days earlier 1.5.2 worked around a kernel bug, present since v6.17, that corrupted memory inside runc and caused random crashes on cgroup v2. It also stopped runc exec --cgroup from escaping into a sibling cgroup.
◆ Where it's heading
The project keeps converting silent behaviour into explicit behaviour. Read-only requests that were ignored now fail, a umask that was dropped is now honoured, and poststart hooks moved to conform to the runtime spec. The same maintainers are shrinking the surface underneath, dropping the deprecated API and the high-level cilium/ebpf path, which took roughly 7.5% off the 1.5.2 binary. Stricter behaviour plus a smaller dependency set is what a component under every container host would be expected to do between majors.
◆ Prediction
1.5.0's notes pointed to a 1.6.0 in late October 2026, and the feed so far shows only rc.1, so further release candidates or the final are the next entries to expect. The refused read-only configurations are the change most likely to surface as user reports during testing.
Alternatives to Redocly and runc
Other Infra & APIs 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 Redocly or runc.
Scalar
Scalar's November 5 releases give each API document its own authentication settings
Algolia
Algolia's AI Assist now writes merchandising rules from a plain-language request
SoftEther VPN
SoftEther returns after 16 months with Windows ARM64 support and a pile of fixes.
Jaeger
Jaeger 2.23 lets people and agents query traces in SQL.
Parse Server
Parse Server 9.11.1 alphas close two beforeSave advisories, one a server crash.
See all Redocly alternatives → · See all runc alternatives →
Recent activity from Redocly and runc
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoRedoclyPlatform v2026-11-04.2
- 1d agoRedoclyTheme 0.72.0 adds GitHub alerts and Markdoc fork
- 1d agoRedoclyAPI docs 0.5.0 moves to Markdoc fork, adds enum pickers
- 1d agoRedoclyMock server plugin 0.25.0 stops leaking earlier responses
- 1d agoRedoclyFramework 0.140.0 renames reunite to platform, folds mcp.docs
- 1d agoRedoclyAsyncAPI plugin 1.23.0 moves to Redocly's Markdoc fork
- 1mo agoruncRelease candidate lifts 1024-CPU limit, removes deprecated APIs
- 1mo agoruncWorkaround for kernel bug that crashed runc on cgroup v2
- 3mo agorunctmpfs regression on Ubuntu 20.04 kernels fixed
- 4mo agoruncrunc 1.5.0 stable, with dated support windows for older branches
- 4mo agoruncCVE-2026-41579: /dev symlink host write access fixed
- 4mo agoruncRelease candidate carrying the CVE-2026-41579 fix
Frequently asked questions
What is the difference between Redocly and runc?
They serve adjacent needs but don't currently overlap on shipped themes. Redocly is currently shipping more aggressively (velocity 6.3 vs 2.5), with 0 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.
Is Redocly better than runc?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Redocly is currently shipping more aggressively (velocity 6.3 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Redocly?
Top Redocly alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Redocly alternatives" section above for the current picks, or visit /alternatives/redocly for the full list with editorial commentary on each.
What are the best alternatives to runc?
Top runc alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "runc alternatives" section above for the current picks, or visit /alternatives/runc for the full list with editorial commentary on each.