diff --git a/installation/upgrade-notes.md b/installation/upgrade-notes.md index 68d21f8cb..0bc172de8 100644 --- a/installation/upgrade-notes.md +++ b/installation/upgrade-notes.md @@ -9,6 +9,15 @@ Note: release notes will be prepared in advance of a Git tag for a release so an The tag drives the overall binary release process so release binaries (containers/packages) will appear after a tag and its associated release note. This allows users to expect the new release binary to appear and allow/deny/update it as appropriate in their infrastructure. +## Fluent Bit v4.0+ + +The default configuration file has been switched to use YAML format and a different name (`.yaml` file suffix instead of `.conf`). + +This may require updating any custom deployments to either provide a YAML configuration or switch back to using legacy configuration in the arguments to the Fluent Bit binary. + +For Linux the Systemd unit will need overriding to specify `-c `. +Similarly for containers, Windows and macOS the default launch command is changed to point at the YAML config file by default. + ## Fluent Bit v1.9.9 The `td-agent-bit` package is no longer provided after this release.