Language maturity levels

This document defines the language maturity levels used on the Supported languages page.

Semgrep Code

Semgrep Code languages can be classified into four maturity levels:

Generally available (GA)
Beta
Experimental
Community supported*

*Community supported languages meet the parse rate and syntax requirements of Experimental languages. Users can still access community rules or write their own rules.

Feature	GA	Beta	Experimental	Community supported
Support	Highest quality support by the Semgrep team. Reported issues are resolved promptly.	Supported by the Semgrep team. Reported issues are fixed after GA languages.	There are limitations to this language’s functionality. Reported issues are tracked and prioritized with best effort.	These languages are supported by the Semgrep community. While Semgrep may develop rules or engine updates for these languages, they are not prioritized.
Parse Rate	99%+	95%+	90%+	90%+
Number of Pro rules	10+	5+	0+. Query the Registry to see if any rules exist for your language.	0+. Query the Registry to see if any rules exist for your language.
Semgrep syntax	Regex, equivalence, deep expression operators, types and typing. All features supported in Beta.	Complete metavariable support, metavariable equality. All features supported in Experimental.	Syntax, ellipsis operator, basic metavariable functionality.	Syntax, ellipsis operator, basic metavariable functionality.

Semgrep Supply Chain

Semgrep Supply Chain has two language maturity levels:

Generally available
Beta

Feature	Generally available	Beta
Number of reachability rules	As defined by CVE coverage.	All critical severity CVEs from supported sources starting 2022 onwards, for packages used by customers with an active, paid subscription.
Semgrep, Inc. rule-writing support	Quickly support CVE coverage with reachability analysis for all critical and high vulnerabilities based on the latest security advisories.	Coverage for CVEs but without reachability analysis.
Semgrep Community Edition (CE) language support	Semgrep CE support is GA.	Semgrep CE support is at least Beta.

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References

Language maturity levels

Semgrep Code

Semgrep Supply Chain

​Semgrep Code

​Semgrep Supply Chain

Semgrep Code

Semgrep Supply Chain