[TRACKING] Breaking changes in Falco 0.39.0

[Andreagit97]

This issue keeps track of all deprecated Falco features that will be removed in Falco 0.39.0

• remove options -D, -t, -T update(falco): add deprecation notice for -T, -t and -D #3193

[poiana]

Issues go stale after 90d of inactivity.

Mark the issue as fresh with /remove-lifecycle stale.

Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Provide feedback via https://github.com/falcosecurity/community.

/lifecycle stale

[Andreagit97]

/remove-lifecycle stale

[poiana]

Issues go stale after 90d of inactivity.

Mark the issue as fresh with /remove-lifecycle stale.

Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Provide feedback via https://github.com/falcosecurity/community.

/lifecycle stale

[Andreagit97]

/remove-lifecycle stale

[FedeDP]

PR: #3311

[FedeDP]

Other breaking changes regard the newly introduced prometheus metrics in Falco 0.38.0:

• fix(metrics/prometheus): adopt best prometheus practices for rules counters and sha256 file metrics #3272
• update(falco_metrics): rearrange evts and drops prometheus metrics #3319
• update(falco_metrics): change prometheus rules metric naming #3324
• fix(falco_metrics): fix prometheus metrics to be compliant with best practices #3337

Thanks @incertum for the great job!
Since the feature was introduced in an incubating state, and it will remain so in the 0.39.0 release too, there was no guarantee of stability.
The feature should reach stable level in Falco 0.40.0.