@Marvin from what prefect version i could use the following code for updating the timeout dinamically?

from prefect import flow

@flow
def my_flow(timeout: int = 3600):
    from prefect.context import get_run_context
    
    context = get_run_context()
    context.flow_run.timeout_seconds = timeout
    ...

# Call with different timeouts
my_flow(timeout=7200)  # 2 hours

Short answer: none. No Prefect version supports changing a running flow’s timeout by mutating

get_run_context().flow_run.timeout_seconds

. That object isn’t the source of truth for timeout enforcement, and changing it won’t affect the engine. Supported ways to set timeouts: - At definition time on the decorator (Prefect 2.x and 3.x):

from prefect import flow

@flow(timeout_seconds=3600)
def my_flow():
    ...

- Per-call (dynamic) using

with_options

(Prefect 2.x and 3.x):

from prefect import flow

@flow
def my_flow():
    ...

# Call with different timeouts per run
my_flow.with_options(timeout_seconds=7200)()  # 2 hours
my_flow.with_options(timeout_seconds=300)()   # 5 minutes

If you’re using deployments, set the timeout in code (as above) or create separate deployments with different configs. Changing it mid-run via context isn’t a thing—sadly, neither is my enthusiasm.