Open-Source Maintenance Decline: What Development Managers Must Do Now

Open-source maintenance is shrinking fast.

Open-Source Maintenance Decline: What Development Managers Must Do Now

Open-source maintenance is shrinking fast.

In 2023, active maintenance dropped about 18%, leaving more dependencies at risk, and development managers must respond by prioritizing visibility, adopting SCA and SBOM practices, and making deliberate choices about sponsorship and forking — Ermenildo V Castro.

Key Takeaways:

Active maintenance of open-source projects fell roughly 18% in 2023, increasing supply-chain risk and technical debt.
Managers should focus on risk triage, SCA tools, SBOMs, and relationships with maintainers and vendors.
Short-term tactics include locking dependency versions, adding SCA scanning into CI/CD, and creating maintenance plans for critical libraries.
Long-term moves: invest in internal stewardship, contribute to critical projects, and train teams on secure update practices.

What is open-source maintenance decline?

Short definition: fewer repositories receive regular, meaningful updates.

When we say a project is being maintained we mean there are recent commits, active PR reviews, issue triage, and timely security fixes, not just downloads or stars, because those latter metrics are misleading; Sonatype and other industry reports use commit frequency and remediation activity to decide which projects qualify as actively maintained, and that metric dropped noticeably in 2023, which raises questions about risk for products that rely on community code.

So what should managers do?

Short reality check: downloads do not equal maintenance.

In one incident I worked on, a tiny transitive NPM package stopped receiving patches, and when the runtime changed the package broke our pipeline, forcing us to fork and patch internally, which cost hours and delayed a release, and that showed me how brittle assumptions about maintenance can be.

Lesson learned.

Core Benefits/Importance

Short note: pay attention and you lower risk.

Managing dependency maintenance proactively reduces exposure to unpatched CVEs and stabilizes release schedules, which keeps product timelines honest and engineers less frazzled; framing this as stewardship means making ethical choices about where to spend time and money, which respects the dignity of maintainers and aligns with long-term product value.

Worth the effort.

Benefits listed plainly:

Lowered security risk: SCA and active monitoring reduce time-to-remediate for CVEs and protect customers and brand reputation.
Predictable releases: version pinning and clear upgrade plans keep roadmaps reliable.
Reduced technical debt: replacing or forking unmaintained libraries early cuts compounding rework.
Team sanity: fewer nights spent firefighting, preserving morale.
Ethical stewardship: sponsoring critical projects supports public goods and aligns with moral responsibility.

Short anecdote: I led a migration away from an unmaintained XML parser.

We set up a small task force, estimated the work, and replaced the dependency over two sprints; the result was fewer runtime errors and a calmer on-call rotation, and it proved that a bit of planning beats a lot of crisis management.

Try it.

Step-by-Step Implementation/Guide

Short step: inventory everything now.

1) Inventory and classify: generate an SBOM (CycloneDX or SPDX) for each product, include transitive dependencies, and log license and maintainer info, because visibility is the foundation of any remediation work. 2) Risk scoring: rank dependencies by runtime impact and maintenance score—high-impact, low-maintenance modules are top priority. 3) CI/CD hardening: add SCA checks (Snyk, Sonatype Nexus IQ, GitHub Dependabot) to pipelines and fail builds only for high-severity issues to avoid alert fatigue. 4) Version control: pin dependencies and use reproducible builds to prevent surprise upstream changes. 5) Policy for unmaintained modules: decide whether to fork, replace, or sponsor upstream, and document that decision in a risk register. 6) Training: teach engineers to prefer libraries with tests, clear governance, and active CI.

Short story: I rolled SBOMs into our release artifacts.

After adding SBOMs to the release process we could answer exposure questions in minutes during audits and incidents, which reduced panic and built trust with security and product stakeholders.

Short tooling note: choose SCA plus SBOM.

Pair automated SCA alerts with SBOM artifacts and feed them into your ticketing system, and make sure someone owns the queue so alerts get triaged into work instead of lingering; most tools work, but they need governance and tuning.

Do that.

Comparison Table

Below is a quick comparison between actively maintained projects and unmaintained projects to help guide decisions.

Feature / Metric	Actively Maintained OSS	Unmaintained OSS (biggest competitor)
Commit Frequency	Regular commits and PRs, recent merges	Long gaps since last commit, stale PRs
Security Patch Rate	Fast response to CVEs, applied patches	Slow or no CVE fixes, longer exposure windows
Community Support	Active issue triage and discussion	Issues pile up, low contributor response
Risk for Production	Lower, less likely to break on upgrade	Higher, greater chance of regressions
Suitability for Enterprise	Preferred if governance exists	Requires mitigation (fork, replace, sponsor)
Cost to Maintain	Lower if community helps, higher if corporate sponsorship needed	Higher if you must fork or maintain internally
Signals to Check	Recent releases, tests, PR reviews, maintainers listed	No releases, failing CI, absent maintainers

Common Mistakes to Avoid

Short truth: teams trust the wrong signals.

Putting faith in download counts or star ratings instead of maintenance signals like CI passing, recent merges, and issue response time causes false security, and when a critical transitive dependency is unmaintained you get outages and security gaps; that’s why direct inspection and automated checks are necessary.

Don’t be fooled.

Short common error: ignoring transitive dependencies.

Many risk assessments only look at top-level packages, but transitive modules can carry vulnerabilities and lack maintainers; include them in SBOMs and risk scoring so you aren’t surprised by an indirect failure. That oversight costs time and trust.

Fix it.

Short management flaw: no ownership.

When there’s no clear owner for dependency health, tickets fail to get prioritized and CVEs linger, so assign responsibility, set SLAs for triage, and include dependency remediation in sprint planning to avoid perpetual backlog creep. Ownership works.

Short operational error: treating every alert the same.

SCA tools create noise; if you treat every alert as critical you’ll drown in toil, so tune severity, focus on exploitability, and create playbooks for common remediation paths like patching, upgrading, or isolating. Be sensible.

Frequently Asked Questions

Q: How do I tell if a project is maintained?

Short answer: check commits, PR merges, CI, and issue response.

Look for recent releases, a healthy test suite, and named maintainers who accept contributions; these are better signals than downloads or social popularity.

Q: Should I remove an unmaintained dependency immediately?

Short answer: no—assess impact first.

Classify risk; replace if critical and easy to replace, fork if internal maintenance is feasible, or sponsor upstream if practical; document the trade-off in a risk register.

Q: Which tools should I adopt first?

Short answer: SCA and SBOM generation.

Start with an SCA scan in CI (Snyk, Sonatype Nexus IQ, GitHub Dependabot) and produce SBOMs (CycloneDX or SPDX) for all releases to accelerate audits and incident response.

For more reading and data, consult these industry sources:

Final Thought

Short end note: act now.

Development managers must treat dependency maintenance as an ongoing responsibility: make inventory visible, prioritize critical modules, choose whether to replace, fork, or sponsor, and bake SCA and SBOMs into CI/CD so fixes are part of the workflow rather than ad hoc crises; this is prudent stewardship of company resources and respect for the public commons of open-source software—principles I’ve relied on through years at large tech firms and smaller shops, and they’ve saved teams from preventable outages.

— Ermenildo V Castro