In July 2020 we adopted the "controller" term instead of "master", and deprecated the "whitelist/blacklist" terms. There are many places where the old terminology still needs to be replaced.
For example, deprecated term can be:
- in UI files, like *.jelly, *.groovy, *.html
- in logs that ends up in job console, or Jenkins console
- in cli output
- HTTP API
- Documentation, README, code comments
Changing master in other context (like git or any scm master branch) is out of scope of this Epic.
We invite contributors to join us and participate in cleaning up Jenkins documentation, Web and CLI interfaces, and the codebase.
| Deprecated term |
To be replaced by |
| master |
built-in when used for node/label
controller (for everything else) |
| slave |
agent (please use https://issues.jenkins.io/browse/JENKINS-42816 ) |
| whitelist |
allowlist (default but can be adapted to context) |
| blacklist |
denylist or blocklist (default but can be adapted to context) |
If you are working on slave/agent replacement please use https://issues.jenkins.io/browse/JENKINS-42816
Originally reported by 
ajard, imported from: Terminology update for master, whitelist, blacklist
- status: Open
- priority: Minor
- component(s): core
- resolution: Unresolved
- votes: 0
- watchers: 6
- imported: 2025-11-24
Raw content of original issue
In July 2020 we adopted the "controller" term instead of "master", and deprecated the "whitelist/blacklist" terms. There are many places where the old terminology still needs to be replaced.
For example, deprecated term can be:
- in UI files, like *.jelly, *.groovy, *.html
- in logs that ends up in job console, or Jenkins console
- in cli output
- HTTP API
- Documentation, README, code comments
Changing master in other context (like git or any scm master branch) is out of scope of this Epic.
We invite contributors to join us and participate in cleaning up Jenkins documentation, Web and CLI interfaces, and the codebase.
| Deprecated term |
To be replaced by |
| master |
built-in when used for node/label
controller (for everything else) |
| slave |
agent (please use https://issues.jenkins.io/browse/JENKINS-42816 ) |
| whitelist |
allowlist (default but can be adapted to context) |
| blacklist |
denylist or blocklist (default but can be adapted to context) |
If you are working on slave/agent replacement please use https://issues.jenkins.io/browse/JENKINS-42816
In July 2020 we adopted the "controller" term instead of "master", and deprecated the "whitelist/blacklist" terms. There are many places where the old terminology still needs to be replaced.
For example, deprecated term can be:
Changing master in other context (like git or any scm master branch) is out of scope of this Epic.
We invite contributors to join us and participate in cleaning up Jenkins documentation, Web and CLI interfaces, and the codebase.
controller (for everything else)
If you are working on slave/agent replacement please use https://issues.jenkins.io/browse/JENKINS-42816
Originally reported by
ajard, imported from: Terminology update for master, whitelist, blacklist
Raw content of original issue
Changing master in other context (like git or any scm master branch) is out of scope of this Epic. We invite contributors to join us and participate in cleaning up Jenkins documentation, Web and CLI interfaces, and the codebase.
If you are working on slave/agent replacement please use https://issues.jenkins.io/browse/JENKINS-42816